diff --git a/agent/alpine/Dockerfile b/agent/alpine/Dockerfile
index 2251945b7..0ad579237 100644
--- a/agent/alpine/Dockerfile
+++ b/agent/alpine/Dockerfile
@@ -1,29 +1,19 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm ZBX_TYPE=agent ZBX_DB_TYPE=none ZBX_OPT_TYPE=none
-
-LABEL org.label-schema.name="zabbix-${ZBX_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix agent is deployed on a monitoring target to actively monitor local resources and applications" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix agent" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix agent is deployed on a monitoring target to actively monitor local resources and applications" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
         zabbix && \
     mkdir -p /etc/zabbix && \
@@ -32,8 +22,7 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix/enc && \
     mkdir -p /var/lib/zabbix/modules && \
     chown --quiet -R zabbix:root /var/lib/zabbix && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    apk add --no-cache --clean-protected \
             tini \
             bash \
             coreutils \
@@ -46,23 +35,23 @@ RUN set -eux && \
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
+
 ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-${ZBX_TYPE} --link zabbix-server:zabbix-server -p 10050:10050 -d zabbix-${ZBX_TYPE}:alpine-${ZBX_VERSION}"
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk update && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
-            alpine-sdk \
+    apk add --no-cache --virtual build-dependencies \
             autoconf \
             automake \
             curl-dev \
             openssl-dev \
             openldap-dev \
+            g++ \
             pcre-dev \
+            make \
             git \
             coreutils && \
     cd /tmp/ && \
@@ -89,9 +78,10 @@ RUN set -eux && \
     cp /tmp/zabbix-${ZBX_VERSION}/src/zabbix_get/zabbix_get /usr/bin/zabbix_get && \
     cp /tmp/zabbix-${ZBX_VERSION}/src/zabbix_sender/zabbix_sender /usr/bin/zabbix_sender && \
     cp /tmp/zabbix-${ZBX_VERSION}/conf/zabbix_agentd.conf /etc/zabbix/zabbix_agentd.conf && \
+    chown -R zabbix:zabbix /etc/zabbix/ && \
     cd /tmp/ && \
     rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -99,8 +89,12 @@ EXPOSE 10050/TCP
 
 WORKDIR /var/lib/zabbix
 
-VOLUME ["/etc/zabbix/zabbix_agentd.d", "/var/lib/zabbix/enc", "/var/lib/zabbix/modules"]
+VOLUME ["/var/lib/zabbix/enc"]
 
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/docker-entrypoint.sh"]
+
+USER zabbix
+
+CMD ["/usr/sbin/zabbix_agentd", "--foreground", "-c", "/etc/zabbix/zabbix_agentd.conf"]
diff --git a/agent/alpine/docker-entrypoint.sh b/agent/alpine/docker-entrypoint.sh
index bc758f3eb..2f3aafe31 100755
--- a/agent/alpine/docker-entrypoint.sh
+++ b/agent/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,154 +9,17 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
 # Default Zabbix installation name
-# Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
 # Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
+: ${ZBX_SERVER_HOST:="zabbix-server"}
 # Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
-
-# Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${ZBX_SERVER_PORT:="10051"}
 
 # Default directories
 # User 'zabbix' home directory
 ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
-# Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
-
-# usage: file_env VAR [DEFAULT]
-# as example: file_env 'MYSQL_PASSWORD' 'zabbix'
-#    (will allow for "$MYSQL_PASSWORD_FILE" to fill in the value of "$MYSQL_PASSWORD" from a file)
-# unsets the VAR_FILE afterwards and just leaving VAR
-file_env() {
-    local var="$1"
-    local fileVar="${var}_FILE"
-    local defaultValue="${2:-}"
-
-    if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
-        echo "**** Both variables $var and $fileVar are set (but are exclusive)"
-        exit 1
-    fi
-
-    local val="$defaultValue"
-
-    if [ "${!var:-}" ]; then
-        val="${!var}"
-        echo "** Using ${var} variable from ENV"
-    elif [ "${!fileVar:-}" ]; then
-        if [ ! -f "${!fileVar}" ]; then
-            echo "**** Secret file \"${!fileVar}\" is not found"
-            exit 1
-        fi
-        val="$(< "${!fileVar}")"
-        echo "** Using ${var} variable from secret file"
-    fi
-    export "$var"="$val"
-    unset "$fileVar"
-}
-
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
 
 escape_spec_char() {
     local var_value=$1
@@ -239,732 +102,12 @@ update_config_multiple_var() {
     done
 }
 
-# Check prerequisites for MySQL database
-check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
-    USE_DB_ROOT_USER=false
-    CREATE_ZBX_DB_USER=false
-    file_env MYSQL_USER
-    file_env MYSQL_PASSWORD
-
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
-        echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
-        exit 1
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ ! -n "${MYSQL_ROOT_PASSWORD}" ] && [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" != "true" ]; then
-        echo "*** Impossible to use MySQL server because 'root' password is not defined and it is not empty"
-        exit 1
-    fi
-
-    if [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || [ -n "${MYSQL_ROOT_PASSWORD}" ]; then
-        USE_DB_ROOT_USER=true
-        DB_SERVER_ROOT_USER="root"
-        DB_SERVER_ROOT_PASS=${MYSQL_ROOT_PASSWORD:-""}
-    fi
-
-    [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
-
-    # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
-    [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
-    DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
-# Check prerequisites for PostgreSQL database
-check_variables_postgresql() {
-    local type=$1
-
-    file_env POSTGRES_USER
-    file_env POSTGRES_PASSWORD
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
-
-    DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
-    DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
-
-    DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
-
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
-}
-
-check_db_connect_mysql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    WAIT_TIMEOUT=5
-
-    while [ ! "$(mysqladmin ping -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} -u ${DB_SERVER_ROOT_USER} \
-                --password="${DB_SERVER_ROOT_PASS}" --silent --connect_timeout=10)" ]; do
-        echo "**** MySQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-}
-
-check_db_connect_postgresql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    echo "* DB_SERVER_SCHEMA: ${DB_SERVER_SCHEMA}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    else
-        DB_SERVER_ROOT_USER=${DB_SERVER_ZBX_USER}
-        DB_SERVER_ROOT_PASS=${DB_SERVER_ZBX_PASS}
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-
-    WAIT_TIMEOUT=5
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    while [ ! "$(psql -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} -U ${DB_SERVER_ROOT_USER} -d ${DB_SERVER_DBNAME} -l -q 2>/dev/null)" ]; do
-        echo "**** PostgreSQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-}
-
-
-mysql_query() {
-    query=$1
-    local result=""
-
-    result=$(mysql --silent --skip-column-names -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-             -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}" -e "$query")
-
-    echo $result
-}
-
-psql_query() {
-    query=$1
-    db=$2
-
-    local result=""
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    result=$(psql -A -q -t  -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-             -U ${DB_SERVER_ROOT_USER} -c "$query" $db 2>/dev/null);
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-
-    echo $result
-}
-
-create_db_user_mysql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in MySQL database"
-
-    USER_EXISTS=$(mysql_query "SELECT 1 FROM mysql.user WHERE user = '${DB_SERVER_ZBX_USER}' AND host = '%'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        mysql_query "CREATE USER '${DB_SERVER_ZBX_USER}'@'%' IDENTIFIED BY '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        mysql_query "ALTER USER ${DB_SERVER_ZBX_USER} IDENTIFIED BY '${DB_SERVER_ZBX_PASS}';" 1>/dev/null
-    fi
-
-    mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-}
-
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
-create_db_database_mysql() {
-    DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        mysql_query "CREATE DATABASE ${DB_SERVER_DBNAME} CHARACTER SET utf8 COLLATE utf8_bin" 1>/dev/null
-        # better solution?
-        mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
-    fi
-}
-
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
-create_db_schema_mysql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(mysql_query "SELECT mandatory FROM ${DB_SERVER_DBNAME}.dbversion")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
-
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
-                    -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-                    -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
-                    ${DB_SERVER_DBNAME} 1>/dev/null
-    fi
-}
-
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
-prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
-    if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
-        echo "** Adding Zabbix virtual host (HTTPS)"
-        if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
-    fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
-}
-
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
-update_zbx_config() {
-    local type=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix $type configuration file"
-
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
-    else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
-    update_config_var $ZBX_CONFIG "LogType" "console"
-    update_config_var $ZBX_CONFIG "LogFile"
-    update_config_var $ZBX_CONFIG "LogFileSize"
-    update_config_var $ZBX_CONFIG "PidFile"
-
-    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
-
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
-
-    update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
-
-    update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_IPMIPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartPollersUnreachable" "${ZBX_STARTPOLLERSUNREACHABLE}"
-    update_config_var $ZBX_CONFIG "StartTrappers" "${ZBX_STARTTRAPPERS}"
-    update_config_var $ZBX_CONFIG "StartPingers" "${ZBX_STARTPINGERS}"
-    update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
-    update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
-
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
-    if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
-        update_config_var $ZBX_CONFIG "StartJavaPollers" "${ZBX_STARTJAVAPOLLERS:-"5"}"
-    else
-        update_config_var $ZBX_CONFIG "JavaGateway"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort"
-        update_config_var $ZBX_CONFIG "StartJavaPollers"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartVMwareCollectors" "${ZBX_STARTVMWARECOLLECTORS}"
-    update_config_var $ZBX_CONFIG "VMwareFrequency" "${ZBX_VMWAREFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwarePerfFrequency" "${ZBX_VMWAREPERFFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
-    update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
-
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
-    if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
-    else
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper"
-    fi
-
-    update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
-    update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
-    update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
-
-    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
-    update_config_var $ZBX_CONFIG "UnreachablePeriod" "${ZBX_UNREACHABLEPERIOD}"
-    update_config_var $ZBX_CONFIG "UnavailableDelay" "${ZBX_UNAVAILABLEDELAY}"
-    update_config_var $ZBX_CONFIG "UnreachableDelay" "${ZBX_UNREACHABLEDELAY}"
-
-    update_config_var $ZBX_CONFIG "AlertScriptsPath" "/usr/lib/zabbix/alertscripts"
-    update_config_var $ZBX_CONFIG "ExternalScripts" "/usr/lib/zabbix/externalscripts"
-
-    # Possible few fping locations
-    if [ -f "/usr/bin/fping" ]; then
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/bin/fping"
-    else
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/sbin/fping"
-    fi
-    if [ -f "/usr/bin/fping6" ]; then
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/bin/fping6"
-    else
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/sbin/fping6"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
-    update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
-    update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
-    update_config_var $ZBX_CONFIG "SSLCALocation" "$ZABBIX_USER_HOME_DIR/ssl/ssl_ca/"
-    update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
-    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
-prepare_zbx_web_config() {
-    local db_type=$1
-    local server_name=""
-
-    echo "** Preparing Zabbix frontend configuration file"
-
-    ZBX_WWW_ROOT="/usr/share/zabbix"
-    ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
-
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
-    else
-        echo "**** Zabbix related PHP configuration file not found"
-    fi
-
-    ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
-
-    # Escaping characters in parameter value
-    server_name=$(escape_spec_char "${ZBX_SERVER_NAME}")
-    server_user=$(escape_spec_char "${DB_SERVER_ZBX_USER}")
-    server_pass=$(escape_spec_char "${DB_SERVER_ZBX_PASS}")
-    history_storage_url=$(escape_spec_char "${ZBX_HISTORYSTORAGEURL}")
-    history_storage_types=$(escape_spec_char "${ZBX_HISTORYSTORAGETYPES}")
-
-    sed -i \
-        -e "s/{DB_SERVER_HOST}/${DB_SERVER_HOST}/g" \
-        -e "s/{DB_SERVER_PORT}/${DB_SERVER_PORT}/g" \
-        -e "s/{DB_SERVER_DBNAME}/${DB_SERVER_DBNAME}/g" \
-        -e "s/{DB_SERVER_SCHEMA}/${DB_SERVER_SCHEMA}/g" \
-        -e "s/{DB_SERVER_USER}/$server_user/g" \
-        -e "s/{DB_SERVER_PASS}/$server_pass/g" \
-        -e "s/{ZBX_SERVER_HOST}/${ZBX_SERVER_HOST}/g" \
-        -e "s/{ZBX_SERVER_PORT}/${ZBX_SERVER_PORT}/g" \
-        -e "s/{ZBX_SERVER_NAME}/$server_name/g" \
-        -e "s/{ZBX_HISTORYSTORAGEURL}/$history_storage_url/g" \
-        -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
-    "$ZBX_WEB_CONFIG"
-
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
-    [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
-}
-
 prepare_zbx_agent_config() {
     echo "** Preparing Zabbix agent configuration file"
-
     ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
 
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
+    : ${ZBX_PASSIVESERVERS:=""}
+    : ${ZBX_ACTIVESERVERS:=""}
 
     [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
 
@@ -983,7 +126,7 @@ prepare_zbx_agent_config() {
     update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
     update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
 
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
+    : ${ZBX_PASSIVE_ALLOW:="true"}
     if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
         echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
         update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
@@ -995,7 +138,7 @@ prepare_zbx_agent_config() {
     update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
 
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
+    : ${ZBX_ACTIVE_ALLOW:="true"}
     if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
         echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
         update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
@@ -1028,20 +171,11 @@ prepare_zbx_agent_config() {
     update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
     update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
     update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
 
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
+    if [ "$(id -u)" != '0' ]; then
+        update_config_var $ZBX_AGENT_CONFIG "User" "$(whoami)"
+    else
+        update_config_var $ZBX_AGENT_CONFIG "AllowRoot" "1"
     fi
 }
 
@@ -1050,130 +184,16 @@ prepare_agent() {
     prepare_zbx_agent_config
 }
 
-prepare_server() {
-    local db_type=$1
-
-    echo "** Preparing Zabbix server"
-
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
-
-    update_zbx_config "server" "$db_type"
-}
-
-prepare_proxy() {
-    local db_type=$1
-
-    echo "Preparing Zabbix proxy"
-
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
-prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix web-interface"
-
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
-}
-
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
-    fi
-
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "${1#-}" != "$1" ]; then
+    set -- /usr/sbin/zabbix_agentd "$@"
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
+if [ "$1" == '/usr/sbin/zabbix_agentd' ]; then
+    prepare_agent
 fi
 
+exec "$@"
+
 #################################################
diff --git a/java-gateway/alpine/Dockerfile b/java-gateway/alpine/Dockerfile
index 1b9e704dc..fe3ead9c8 100644
--- a/java-gateway/alpine/Dockerfile
+++ b/java-gateway/alpine/Dockerfile
@@ -1,36 +1,24 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm PATH=${PATH}:/usr/lib/jvm/default-jvm/bin/ JAVA_HOME=/usr/lib/jvm/default-jvm \
-    ZBX_TYPE=java-gateway ZBX_DB_TYPE=none ZBX_OPT_TYPE=none
-
-LABEL org.label-schema.name="zabbix-${ZBX_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix Java Gateway performs native support for monitoring JMX applications" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix Java Gateway" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix Java Gateway performs native support for monitoring JMX applications" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
         zabbix && \
     mkdir -p /etc/zabbix/ && \
     chown --quiet -R zabbix:root /etc/zabbix && \
-    apk update && \
-    apk add ${APK_FLAGS_COMMON} \
+    apk add --clean-protected --no-cache \
             bash \
             openjdk8-jre-base && \
     rm -rf /var/cache/apk/*
@@ -38,20 +26,24 @@ RUN set -eux && \
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-${ZBX_TYPE} --link zabbix-server:zabbix-server -p 10052:10052 -d zabbix-${ZBX_TYPE}:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} \
+    PATH=${PATH}:/usr/lib/jvm/default-jvm/bin/ JAVA_HOME=/usr/lib/jvm/default-jvm
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
+    apk add --no-cache --virtual build-dependencies \
             autoconf \
             automake \
             coreutils \
-            openjdk8 \
-            alpine-sdk && \
+            pkgconf \
+            git \
+            g++ \
+            make \
+            openjdk8 && \
     cd /tmp/ && \
     git clone ${ZBX_SOURCES} --branch master --depth 1 --single-branch zabbix-${ZBX_VERSION} && \
     cd /tmp/zabbix-${ZBX_VERSION} && \
@@ -73,7 +65,7 @@ RUN set -eux && \
     rm -rf /usr/sbin/zabbix_java/lib/*.xml && \
     cd /tmp/ && \
     rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -88,3 +80,7 @@ COPY ["conf/usr/sbin/zabbix_java_gateway", "/usr/sbin/"]
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["docker-entrypoint.sh"]
+
+USER zabbix
+
+CMD ["/usr/sbin/zabbix_java_gateway"]
diff --git a/java-gateway/alpine/docker-entrypoint.sh b/java-gateway/alpine/docker-entrypoint.sh
index bc758f3eb..2478543d8 100755
--- a/java-gateway/alpine/docker-entrypoint.sh
+++ b/java-gateway/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,154 +9,9 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
-# Default Zabbix installation name
-# Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
-# Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
-# Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
-
-# Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
-# User 'zabbix' home directory
-ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
-# Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
-
-# usage: file_env VAR [DEFAULT]
-# as example: file_env 'MYSQL_PASSWORD' 'zabbix'
-#    (will allow for "$MYSQL_PASSWORD_FILE" to fill in the value of "$MYSQL_PASSWORD" from a file)
-# unsets the VAR_FILE afterwards and just leaving VAR
-file_env() {
-    local var="$1"
-    local fileVar="${var}_FILE"
-    local defaultValue="${2:-}"
-
-    if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
-        echo "**** Both variables $var and $fileVar are set (but are exclusive)"
-        exit 1
-    fi
-
-    local val="$defaultValue"
-
-    if [ "${!var:-}" ]; then
-        val="${!var}"
-        echo "** Using ${var} variable from ENV"
-    elif [ "${!fileVar:-}" ]; then
-        if [ ! -f "${!fileVar}" ]; then
-            echo "**** Secret file \"${!fileVar}\" is not found"
-            exit 1
-        fi
-        val="$(< "${!fileVar}")"
-        echo "** Using ${var} variable from secret file"
-    fi
-    export "$var"="$val"
-    unset "$fileVar"
-}
-
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
 
 escape_spec_char() {
     local var_value=$1
@@ -239,797 +94,6 @@ update_config_multiple_var() {
     done
 }
 
-# Check prerequisites for MySQL database
-check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
-    USE_DB_ROOT_USER=false
-    CREATE_ZBX_DB_USER=false
-    file_env MYSQL_USER
-    file_env MYSQL_PASSWORD
-
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
-        echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
-        exit 1
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ ! -n "${MYSQL_ROOT_PASSWORD}" ] && [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" != "true" ]; then
-        echo "*** Impossible to use MySQL server because 'root' password is not defined and it is not empty"
-        exit 1
-    fi
-
-    if [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || [ -n "${MYSQL_ROOT_PASSWORD}" ]; then
-        USE_DB_ROOT_USER=true
-        DB_SERVER_ROOT_USER="root"
-        DB_SERVER_ROOT_PASS=${MYSQL_ROOT_PASSWORD:-""}
-    fi
-
-    [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
-
-    # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
-    [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
-    DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
-# Check prerequisites for PostgreSQL database
-check_variables_postgresql() {
-    local type=$1
-
-    file_env POSTGRES_USER
-    file_env POSTGRES_PASSWORD
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
-
-    DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
-    DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
-
-    DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
-
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
-}
-
-check_db_connect_mysql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    WAIT_TIMEOUT=5
-
-    while [ ! "$(mysqladmin ping -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} -u ${DB_SERVER_ROOT_USER} \
-                --password="${DB_SERVER_ROOT_PASS}" --silent --connect_timeout=10)" ]; do
-        echo "**** MySQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-}
-
-check_db_connect_postgresql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    echo "* DB_SERVER_SCHEMA: ${DB_SERVER_SCHEMA}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    else
-        DB_SERVER_ROOT_USER=${DB_SERVER_ZBX_USER}
-        DB_SERVER_ROOT_PASS=${DB_SERVER_ZBX_PASS}
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-
-    WAIT_TIMEOUT=5
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    while [ ! "$(psql -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} -U ${DB_SERVER_ROOT_USER} -d ${DB_SERVER_DBNAME} -l -q 2>/dev/null)" ]; do
-        echo "**** PostgreSQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-}
-
-
-mysql_query() {
-    query=$1
-    local result=""
-
-    result=$(mysql --silent --skip-column-names -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-             -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}" -e "$query")
-
-    echo $result
-}
-
-psql_query() {
-    query=$1
-    db=$2
-
-    local result=""
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    result=$(psql -A -q -t  -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-             -U ${DB_SERVER_ROOT_USER} -c "$query" $db 2>/dev/null);
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-
-    echo $result
-}
-
-create_db_user_mysql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in MySQL database"
-
-    USER_EXISTS=$(mysql_query "SELECT 1 FROM mysql.user WHERE user = '${DB_SERVER_ZBX_USER}' AND host = '%'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        mysql_query "CREATE USER '${DB_SERVER_ZBX_USER}'@'%' IDENTIFIED BY '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        mysql_query "ALTER USER ${DB_SERVER_ZBX_USER} IDENTIFIED BY '${DB_SERVER_ZBX_PASS}';" 1>/dev/null
-    fi
-
-    mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-}
-
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
-create_db_database_mysql() {
-    DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        mysql_query "CREATE DATABASE ${DB_SERVER_DBNAME} CHARACTER SET utf8 COLLATE utf8_bin" 1>/dev/null
-        # better solution?
-        mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
-    fi
-}
-
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
-create_db_schema_mysql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(mysql_query "SELECT mandatory FROM ${DB_SERVER_DBNAME}.dbversion")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
-
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
-                    -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-                    -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
-                    ${DB_SERVER_DBNAME} 1>/dev/null
-    fi
-}
-
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
-prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
-    if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
-        echo "** Adding Zabbix virtual host (HTTPS)"
-        if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
-    fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
-}
-
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
-update_zbx_config() {
-    local type=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix $type configuration file"
-
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
-    else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
-    update_config_var $ZBX_CONFIG "LogType" "console"
-    update_config_var $ZBX_CONFIG "LogFile"
-    update_config_var $ZBX_CONFIG "LogFileSize"
-    update_config_var $ZBX_CONFIG "PidFile"
-
-    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
-
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
-
-    update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
-
-    update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_IPMIPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartPollersUnreachable" "${ZBX_STARTPOLLERSUNREACHABLE}"
-    update_config_var $ZBX_CONFIG "StartTrappers" "${ZBX_STARTTRAPPERS}"
-    update_config_var $ZBX_CONFIG "StartPingers" "${ZBX_STARTPINGERS}"
-    update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
-    update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
-
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
-    if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
-        update_config_var $ZBX_CONFIG "StartJavaPollers" "${ZBX_STARTJAVAPOLLERS:-"5"}"
-    else
-        update_config_var $ZBX_CONFIG "JavaGateway"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort"
-        update_config_var $ZBX_CONFIG "StartJavaPollers"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartVMwareCollectors" "${ZBX_STARTVMWARECOLLECTORS}"
-    update_config_var $ZBX_CONFIG "VMwareFrequency" "${ZBX_VMWAREFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwarePerfFrequency" "${ZBX_VMWAREPERFFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
-    update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
-
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
-    if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
-    else
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper"
-    fi
-
-    update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
-    update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
-    update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
-
-    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
-    update_config_var $ZBX_CONFIG "UnreachablePeriod" "${ZBX_UNREACHABLEPERIOD}"
-    update_config_var $ZBX_CONFIG "UnavailableDelay" "${ZBX_UNAVAILABLEDELAY}"
-    update_config_var $ZBX_CONFIG "UnreachableDelay" "${ZBX_UNREACHABLEDELAY}"
-
-    update_config_var $ZBX_CONFIG "AlertScriptsPath" "/usr/lib/zabbix/alertscripts"
-    update_config_var $ZBX_CONFIG "ExternalScripts" "/usr/lib/zabbix/externalscripts"
-
-    # Possible few fping locations
-    if [ -f "/usr/bin/fping" ]; then
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/bin/fping"
-    else
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/sbin/fping"
-    fi
-    if [ -f "/usr/bin/fping6" ]; then
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/bin/fping6"
-    else
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/sbin/fping6"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
-    update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
-    update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
-    update_config_var $ZBX_CONFIG "SSLCALocation" "$ZABBIX_USER_HOME_DIR/ssl/ssl_ca/"
-    update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
-    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
-prepare_zbx_web_config() {
-    local db_type=$1
-    local server_name=""
-
-    echo "** Preparing Zabbix frontend configuration file"
-
-    ZBX_WWW_ROOT="/usr/share/zabbix"
-    ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
-
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
-    else
-        echo "**** Zabbix related PHP configuration file not found"
-    fi
-
-    ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
-
-    # Escaping characters in parameter value
-    server_name=$(escape_spec_char "${ZBX_SERVER_NAME}")
-    server_user=$(escape_spec_char "${DB_SERVER_ZBX_USER}")
-    server_pass=$(escape_spec_char "${DB_SERVER_ZBX_PASS}")
-    history_storage_url=$(escape_spec_char "${ZBX_HISTORYSTORAGEURL}")
-    history_storage_types=$(escape_spec_char "${ZBX_HISTORYSTORAGETYPES}")
-
-    sed -i \
-        -e "s/{DB_SERVER_HOST}/${DB_SERVER_HOST}/g" \
-        -e "s/{DB_SERVER_PORT}/${DB_SERVER_PORT}/g" \
-        -e "s/{DB_SERVER_DBNAME}/${DB_SERVER_DBNAME}/g" \
-        -e "s/{DB_SERVER_SCHEMA}/${DB_SERVER_SCHEMA}/g" \
-        -e "s/{DB_SERVER_USER}/$server_user/g" \
-        -e "s/{DB_SERVER_PASS}/$server_pass/g" \
-        -e "s/{ZBX_SERVER_HOST}/${ZBX_SERVER_HOST}/g" \
-        -e "s/{ZBX_SERVER_PORT}/${ZBX_SERVER_PORT}/g" \
-        -e "s/{ZBX_SERVER_NAME}/$server_name/g" \
-        -e "s/{ZBX_HISTORYSTORAGEURL}/$history_storage_url/g" \
-        -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
-    "$ZBX_WEB_CONFIG"
-
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
-    [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
-}
-
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
 prepare_java_gateway_config() {
     echo "** Preparing Zabbix Java Gateway log configuration file"
 
@@ -1045,53 +109,6 @@ prepare_java_gateway_config() {
     fi
 }
 
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
-}
-
-prepare_server() {
-    local db_type=$1
-
-    echo "** Preparing Zabbix server"
-
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
-
-    update_zbx_config "server" "$db_type"
-}
-
-prepare_proxy() {
-    local db_type=$1
-
-    echo "Preparing Zabbix proxy"
-
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
-prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix web-interface"
-
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
 prepare_java_gateway() {
     echo "** Preparing Zabbix Java Gateway"
 
@@ -1100,80 +117,11 @@ prepare_java_gateway() {
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
-    fi
-
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "$1" == '/usr/sbin/zabbix_java_gateway' ]; then
+    prepare_java_gateway
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
+exec "$@"
 
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
-fi
 
 #################################################
diff --git a/proxy-mysql/alpine/Dockerfile b/proxy-mysql/alpine/Dockerfile
index 0272332e1..c715ceeef 100644
--- a/proxy-mysql/alpine/Dockerfile
+++ b/proxy-mysql/alpine/Dockerfile
@@ -1,30 +1,19 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL \
-    ZBX_TYPE=proxy ZBX_DB_TYPE=mysql ZBX_OPT_TYPE=none
-
-LABEL org.label-schema.name="zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix ${ZBX_TYPE} with MySQL database support" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix proxy (MySQL)" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix proxy with MySQL database support" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
         zabbix && \
     mkdir -p /etc/zabbix && \
@@ -40,9 +29,8 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix/ssl/keys && \
     mkdir -p /var/lib/zabbix/ssl/ssl_ca && \
     chown --quiet -R zabbix:root /var/lib/zabbix && \
-    mkdir -p /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE} && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    mkdir -p /usr/share/doc/zabbix-proxy-mysql && \
+    apk add --clean-protected --no-cache \
             tini \
             bash \
             iputils \
@@ -63,20 +51,24 @@ RUN set -eux && \
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE} --link mysql-server:mysql --link zabbix-server:zabbix-server -p 10051:10051 -d zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} \
+    MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
+    apk add --no-cache --virtual build-dependencies \
             autoconf \
             automake \
             coreutils \
             curl-dev \
             libevent-dev \
+            g++ \
+            git \
+            make \
             libssh2-dev \
             libxml2-dev \
             mysql-dev \
@@ -84,8 +76,7 @@ RUN set -eux && \
             openipmi-dev \
             openldap-dev \
             pcre-dev \
-            unixodbc-dev \
-            alpine-sdk && \
+            unixodbc-dev && \
     cd /tmp/ && \
     git clone ${ZBX_SOURCES} --branch master --depth 1 --single-branch zabbix-${ZBX_VERSION} && \
     cd /tmp/zabbix-${ZBX_VERSION} && \
@@ -99,8 +90,8 @@ RUN set -eux && \
             --sysconfdir=/etc/zabbix \
             --prefix=/usr \
             --enable-agent \
-            --enable-${ZBX_TYPE} \
-            --with-${ZBX_DB_TYPE} \
+            --enable-proxy \
+            --with-mysql \
             --with-ldap \
             --with-libcurl \
             --with-libxml2 \
@@ -113,17 +104,17 @@ RUN set -eux && \
             --silent && \
     make -j"$(nproc)" -s dbschema && \
     make -j"$(nproc)" -s && \
-    cp src/zabbix_${ZBX_TYPE}/zabbix_${ZBX_TYPE} /usr/sbin/zabbix_${ZBX_TYPE} && \
+    cp src/zabbix_proxy/zabbix_proxy /usr/sbin/zabbix_proxy && \
     cp src/zabbix_get/zabbix_get /usr/bin/zabbix_get && \
     cp src/zabbix_sender/zabbix_sender /usr/bin/zabbix_sender && \
-    cp conf/zabbix_${ZBX_TYPE}.conf /etc/zabbix/zabbix_${ZBX_TYPE}.conf && \
+    cp conf/zabbix_proxy.conf /etc/zabbix/zabbix_proxy.conf && \
     chown --quiet -R zabbix:root /etc/zabbix && \
-    cat database/${ZBX_DB_TYPE}/schema.sql > database/${ZBX_DB_TYPE}/create.sql && \
-    gzip database/${ZBX_DB_TYPE}/create.sql && \
-    cp database/${ZBX_DB_TYPE}/create.sql.gz /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}/ && \
+    cat database/mysql/schema.sql > database/mysql/create.sql && \
+    gzip database/mysql/create.sql && \
+    cp database/mysql/create.sql.gz /usr/share/doc/zabbix-proxy-mysql/ && \
     cd /tmp/ && \
     rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -137,3 +128,7 @@ VOLUME ["/var/lib/zabbix/ssh_keys", "/var/lib/zabbix/ssl/certs", "/var/lib/zabbi
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/docker-entrypoint.sh"]
+
+USER zabbix
+
+CMD ["/usr/sbin/zabbix_proxy", "--foreground", "-c", "/etc/zabbix/zabbix_proxy.conf"]
diff --git a/proxy-mysql/alpine/docker-entrypoint.sh b/proxy-mysql/alpine/docker-entrypoint.sh
index bc758f3eb..f210ed2e3 100755
--- a/proxy-mysql/alpine/docker-entrypoint.sh
+++ b/proxy-mysql/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,37 +9,16 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
-# Default Zabbix installation name
-# Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
 # Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
+: ${ZBX_SERVER_HOST:="zabbix-server"}
 # Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
-
-# Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${ZBX_SERVER_PORT:="10051"}
 
 # Default directories
 # User 'zabbix' home directory
 ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
-# Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
 
 # usage: file_env VAR [DEFAULT]
 # as example: file_env 'MYSQL_PASSWORD' 'zabbix'
@@ -72,92 +51,6 @@ file_env() {
     unset "$fileVar"
 }
 
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
-
 escape_spec_char() {
     local var_value=$1
 
@@ -241,18 +134,14 @@ update_config_multiple_var() {
 
 # Check prerequisites for MySQL database
 check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
+    : ${DB_SERVER_HOST:="mysql-server"}
+    : ${DB_SERVER_PORT:="3306"}
     USE_DB_ROOT_USER=false
     CREATE_ZBX_DB_USER=false
     file_env MYSQL_USER
     file_env MYSQL_PASSWORD
 
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
+    file_env MYSQL_ROOT_PASSWORD
 
     if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
         echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
@@ -278,37 +167,7 @@ check_variables_mysql() {
     DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
     DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
 
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
-# Check prerequisites for PostgreSQL database
-check_variables_postgresql() {
-    local type=$1
-
-    file_env POSTGRES_USER
-    file_env POSTGRES_PASSWORD
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
-
-    DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
-    DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
-
-    DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
-
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
+    DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
 }
 
 check_db_connect_mysql() {
@@ -333,44 +192,6 @@ check_db_connect_mysql() {
     done
 }
 
-check_db_connect_postgresql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    echo "* DB_SERVER_SCHEMA: ${DB_SERVER_SCHEMA}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    else
-        DB_SERVER_ROOT_USER=${DB_SERVER_ZBX_USER}
-        DB_SERVER_ROOT_PASS=${DB_SERVER_ZBX_PASS}
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-
-    WAIT_TIMEOUT=5
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    while [ ! "$(psql -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} -U ${DB_SERVER_ROOT_USER} -d ${DB_SERVER_DBNAME} -l -q 2>/dev/null)" ]; do
-        echo "**** PostgreSQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-}
-
-
 mysql_query() {
     query=$1
     local result=""
@@ -381,30 +202,6 @@ mysql_query() {
     echo $result
 }
 
-psql_query() {
-    query=$1
-    db=$2
-
-    local result=""
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    result=$(psql -A -q -t  -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-             -U ${DB_SERVER_ROOT_USER} -c "$query" $db 2>/dev/null);
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-
-    echo $result
-}
-
 create_db_user_mysql() {
     [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
 
@@ -421,20 +218,6 @@ create_db_user_mysql() {
     mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
 }
 
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
 create_db_database_mysql() {
     DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
 
@@ -448,22 +231,7 @@ create_db_database_mysql() {
     fi
 }
 
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
 create_db_schema_mysql() {
-    local type=$1
-
     DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
 
     if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
@@ -474,250 +242,31 @@ create_db_schema_mysql() {
     if [ -z "${ZBX_DB_VERSION}" ]; then
         echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
 
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
+        zcat /usr/share/doc/zabbix-proxy-mysql/create.sql.gz | mysql --silent --skip-column-names \
                     -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
                     -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
                     ${DB_SERVER_DBNAME} 1>/dev/null
     fi
 }
 
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
-prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
-    if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
-        echo "** Adding Zabbix virtual host (HTTPS)"
-        if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
-    fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
-}
-
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
 update_zbx_config() {
-    local type=$1
-    local db_type=$2
+    echo "** Preparing Zabbix proxy configuration file"
 
-    echo "** Preparing Zabbix $type configuration file"
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_proxy.conf
 
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
+    update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
+    update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
+    update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
+    if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
+        update_config_var $ZBX_CONFIG "Hostname" ""
+        update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+        update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-mysql"}"
+        update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
     update_config_var $ZBX_CONFIG "LogType" "console"
     update_config_var $ZBX_CONFIG "LogFile"
@@ -726,40 +275,23 @@ update_zbx_config() {
 
     update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
+    update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
+    update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
 
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
+    update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
+    update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
+    update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
+    update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
+    update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
+    update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
 
     update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
+    update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
+    update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
+    update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
+    update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
 
@@ -771,14 +303,7 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
     update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
-
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
+    : ${ZBX_JAVAGATEWAY_ENABLE:="false"}
     if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
         update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
         update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
@@ -795,7 +320,7 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
     update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
 
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
+    : ${ZBX_ENABLE_SNMP_TRAPS:="false"}
     if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
         update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
         update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
@@ -805,26 +330,13 @@ update_zbx_config() {
     fi
 
     update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
 
     update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
-
     update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
     update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
     update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
-
     update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
     update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
     update_config_var $ZBX_CONFIG "UnreachablePeriod" "${ZBX_UNREACHABLEPERIOD}"
@@ -849,331 +361,55 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
     update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
-
     update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
     update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
     update_config_var $ZBX_CONFIG "SSLCALocation" "$ZABBIX_USER_HOME_DIR/ssl/ssl_ca/"
     update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
     update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
+    update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
+    update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
     update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
     update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
+    update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
+    update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
 
     update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
     update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
+    update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
+    update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
 
-
-prepare_zbx_web_config() {
-    local db_type=$1
-    local server_name=""
-
-    echo "** Preparing Zabbix frontend configuration file"
-
-    ZBX_WWW_ROOT="/usr/share/zabbix"
-    ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
-
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
+    if [ "$(id -u)" != '0' ]; then
+        update_config_var $ZBX_CONFIG "User" "$(whoami)"
     else
-        echo "**** Zabbix related PHP configuration file not found"
+        update_config_var $ZBX_CONFIG "AllowRoot" "1"
     fi
-
-    ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
-
-    # Escaping characters in parameter value
-    server_name=$(escape_spec_char "${ZBX_SERVER_NAME}")
-    server_user=$(escape_spec_char "${DB_SERVER_ZBX_USER}")
-    server_pass=$(escape_spec_char "${DB_SERVER_ZBX_PASS}")
-    history_storage_url=$(escape_spec_char "${ZBX_HISTORYSTORAGEURL}")
-    history_storage_types=$(escape_spec_char "${ZBX_HISTORYSTORAGETYPES}")
-
-    sed -i \
-        -e "s/{DB_SERVER_HOST}/${DB_SERVER_HOST}/g" \
-        -e "s/{DB_SERVER_PORT}/${DB_SERVER_PORT}/g" \
-        -e "s/{DB_SERVER_DBNAME}/${DB_SERVER_DBNAME}/g" \
-        -e "s/{DB_SERVER_SCHEMA}/${DB_SERVER_SCHEMA}/g" \
-        -e "s/{DB_SERVER_USER}/$server_user/g" \
-        -e "s/{DB_SERVER_PASS}/$server_pass/g" \
-        -e "s/{ZBX_SERVER_HOST}/${ZBX_SERVER_HOST}/g" \
-        -e "s/{ZBX_SERVER_PORT}/${ZBX_SERVER_PORT}/g" \
-        -e "s/{ZBX_SERVER_NAME}/$server_name/g" \
-        -e "s/{ZBX_HISTORYSTORAGEURL}/$history_storage_url/g" \
-        -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
-    "$ZBX_WEB_CONFIG"
-
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
-    [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
-}
-
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
-    fi
-}
-
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
-}
-
-prepare_server() {
-    local db_type=$1
-
-    echo "** Preparing Zabbix server"
-
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
-
-    update_zbx_config "server" "$db_type"
 }
 
 prepare_proxy() {
-    local db_type=$1
-
     echo "Preparing Zabbix proxy"
 
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
+    check_variables_mysql
+    check_db_connect_mysql
+    create_db_user_mysql
+    create_db_database_mysql
+    create_db_schema_mysql
 
-    update_zbx_config "proxy" $db_type
-}
-
-prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix web-interface"
-
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
+    update_zbx_config
 }
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
+if [ "${1#-}" != "$1" ]; then
+    set -- /usr/sbin/zabbix_proxy "$@"
     fi
 
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "$1" == '/usr/sbin/zabbix_proxy' ]; then
+    prepare_proxy
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
-fi
+exec "$@"
 
 #################################################
diff --git a/proxy-sqlite3/alpine/Dockerfile b/proxy-sqlite3/alpine/Dockerfile
index 17799f37a..70b2fe5da 100644
--- a/proxy-sqlite3/alpine/Dockerfile
+++ b/proxy-sqlite3/alpine/Dockerfile
@@ -1,30 +1,19 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON="-q"
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL \
-    ZBX_TYPE=proxy ZBX_DB_TYPE=sqlite3 ZBX_OPT_TYPE=none
-
-LABEL org.label-schema.name="zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix ${ZBX_TYPE} with SQLite3 database support" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix proxy (SQLite3)" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix proxy with SQLite3 database support" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
         zabbix && \
     mkdir -p /etc/zabbix && \
@@ -40,8 +29,7 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix/ssl/keys && \
     mkdir -p /var/lib/zabbix/ssl/ssl_ca && \
     chown --quiet -R zabbix:root /var/lib/zabbix && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    apk add --clean-protected --no-cache \
             tini \
             bash \
             fping \
@@ -63,14 +51,15 @@ ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
 ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE} --link zabbix-server:zabbix-server -p 10051:10051 -d zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} \
+    MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
-            alpine-sdk \
+    apk add --no-cache --virtual build-dependencies \
             autoconf \
             automake \
             coreutils \
@@ -84,6 +73,8 @@ RUN set -eux && \
             pcre-dev \
             sqlite-dev \
             git \
+            g++ \
+            make \
             unixodbc-dev && \
     cd /tmp/ && \
     git clone ${ZBX_SOURCES} --branch master --depth 1 --single-branch zabbix-${ZBX_VERSION} && \
@@ -98,8 +89,8 @@ RUN set -eux && \
             --sysconfdir=/etc/zabbix \
             --prefix=/usr \
             --enable-agent \
-            --enable-${ZBX_TYPE} \
-            --with-${ZBX_DB_TYPE} \
+            --enable-proxy \
+            --with-sqlite3 \
             --with-ldap \
             --with-libcurl \
             --with-libxml2 \
@@ -112,14 +103,14 @@ RUN set -eux && \
             --silent && \
     make -j"$(nproc)" -s dbschema && \
     make -j"$(nproc)" -s && \
-    cp src/zabbix_${ZBX_TYPE}/zabbix_${ZBX_TYPE} /usr/sbin/zabbix_${ZBX_TYPE} && \
+    cp src/zabbix_proxy/zabbix_proxy /usr/sbin/zabbix_proxy && \
     cp src/zabbix_get/zabbix_get /usr/bin/zabbix_get && \
     cp src/zabbix_sender/zabbix_sender /usr/bin/zabbix_sender && \
-    cp conf/zabbix_${ZBX_TYPE}.conf /etc/zabbix/zabbix_${ZBX_TYPE}.conf && \
+    cp conf/zabbix_proxy.conf /etc/zabbix/zabbix_proxy.conf && \
     chown --quiet -R zabbix:root /etc/zabbix && \
     cd /tmp/ && \
     rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -133,3 +124,7 @@ VOLUME ["/var/lib/zabbix/ssh_keys", "/var/lib/zabbix/ssl/certs", "/var/lib/zabbi
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/docker-entrypoint.sh"]
+
+USER zabbix
+
+CMD ["/usr/sbin/zabbix_proxy", "--foreground", "-c", "/etc/zabbix/zabbix_proxy.conf"]
diff --git a/proxy-sqlite3/alpine/docker-entrypoint.sh b/proxy-sqlite3/alpine/docker-entrypoint.sh
index bc758f3eb..1d545d49c 100755
--- a/proxy-sqlite3/alpine/docker-entrypoint.sh
+++ b/proxy-sqlite3/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,154 +9,16 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
-# Default Zabbix installation name
-# Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
 # Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
+: ${ZBX_SERVER_HOST:="zabbix-server"}
 # Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
-
-# Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${ZBX_SERVER_PORT:="10051"}
 
 # Default directories
 # User 'zabbix' home directory
 ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
-# Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
-
-# usage: file_env VAR [DEFAULT]
-# as example: file_env 'MYSQL_PASSWORD' 'zabbix'
-#    (will allow for "$MYSQL_PASSWORD_FILE" to fill in the value of "$MYSQL_PASSWORD" from a file)
-# unsets the VAR_FILE afterwards and just leaving VAR
-file_env() {
-    local var="$1"
-    local fileVar="${var}_FILE"
-    local defaultValue="${2:-}"
-
-    if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
-        echo "**** Both variables $var and $fileVar are set (but are exclusive)"
-        exit 1
-    fi
-
-    local val="$defaultValue"
-
-    if [ "${!var:-}" ]; then
-        val="${!var}"
-        echo "** Using ${var} variable from ENV"
-    elif [ "${!fileVar:-}" ]; then
-        if [ ! -f "${!fileVar}" ]; then
-            echo "**** Secret file \"${!fileVar}\" is not found"
-            exit 1
-        fi
-        val="$(< "${!fileVar}")"
-        echo "** Using ${var} variable from secret file"
-    fi
-    export "$var"="$val"
-    unset "$fileVar"
-}
-
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
 
 escape_spec_char() {
     local var_value=$1
@@ -239,485 +101,24 @@ update_config_multiple_var() {
     done
 }
 
-# Check prerequisites for MySQL database
-check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
-    USE_DB_ROOT_USER=false
-    CREATE_ZBX_DB_USER=false
-    file_env MYSQL_USER
-    file_env MYSQL_PASSWORD
-
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
-        echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
-        exit 1
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ ! -n "${MYSQL_ROOT_PASSWORD}" ] && [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" != "true" ]; then
-        echo "*** Impossible to use MySQL server because 'root' password is not defined and it is not empty"
-        exit 1
-    fi
-
-    if [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || [ -n "${MYSQL_ROOT_PASSWORD}" ]; then
-        USE_DB_ROOT_USER=true
-        DB_SERVER_ROOT_USER="root"
-        DB_SERVER_ROOT_PASS=${MYSQL_ROOT_PASSWORD:-""}
-    fi
-
-    [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
-
-    # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
-    [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
-    DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
-# Check prerequisites for PostgreSQL database
-check_variables_postgresql() {
-    local type=$1
-
-    file_env POSTGRES_USER
-    file_env POSTGRES_PASSWORD
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
-
-    DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
-    DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
-
-    DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
-
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
-}
-
-check_db_connect_mysql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    WAIT_TIMEOUT=5
-
-    while [ ! "$(mysqladmin ping -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} -u ${DB_SERVER_ROOT_USER} \
-                --password="${DB_SERVER_ROOT_PASS}" --silent --connect_timeout=10)" ]; do
-        echo "**** MySQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-}
-
-check_db_connect_postgresql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    echo "* DB_SERVER_SCHEMA: ${DB_SERVER_SCHEMA}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    else
-        DB_SERVER_ROOT_USER=${DB_SERVER_ZBX_USER}
-        DB_SERVER_ROOT_PASS=${DB_SERVER_ZBX_PASS}
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-
-    WAIT_TIMEOUT=5
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    while [ ! "$(psql -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} -U ${DB_SERVER_ROOT_USER} -d ${DB_SERVER_DBNAME} -l -q 2>/dev/null)" ]; do
-        echo "**** PostgreSQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-}
-
-
-mysql_query() {
-    query=$1
-    local result=""
-
-    result=$(mysql --silent --skip-column-names -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-             -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}" -e "$query")
-
-    echo $result
-}
-
-psql_query() {
-    query=$1
-    db=$2
-
-    local result=""
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    result=$(psql -A -q -t  -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-             -U ${DB_SERVER_ROOT_USER} -c "$query" $db 2>/dev/null);
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-
-    echo $result
-}
-
-create_db_user_mysql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in MySQL database"
-
-    USER_EXISTS=$(mysql_query "SELECT 1 FROM mysql.user WHERE user = '${DB_SERVER_ZBX_USER}' AND host = '%'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        mysql_query "CREATE USER '${DB_SERVER_ZBX_USER}'@'%' IDENTIFIED BY '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        mysql_query "ALTER USER ${DB_SERVER_ZBX_USER} IDENTIFIED BY '${DB_SERVER_ZBX_PASS}';" 1>/dev/null
-    fi
-
-    mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-}
-
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
-create_db_database_mysql() {
-    DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        mysql_query "CREATE DATABASE ${DB_SERVER_DBNAME} CHARACTER SET utf8 COLLATE utf8_bin" 1>/dev/null
-        # better solution?
-        mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
-    fi
-}
-
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
-create_db_schema_mysql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(mysql_query "SELECT mandatory FROM ${DB_SERVER_DBNAME}.dbversion")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
-
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
-                    -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-                    -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
-                    ${DB_SERVER_DBNAME} 1>/dev/null
-    fi
-}
-
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
-prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
-    if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
-        echo "** Adding Zabbix virtual host (HTTPS)"
-        if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
-    fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
-}
-
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
 update_zbx_config() {
-    local type=$1
-    local db_type=$2
+    echo "** Preparing Zabbix proxy configuration file"
 
-    echo "** Preparing Zabbix $type configuration file"
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_proxy.conf
 
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
+    update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
+    update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
+    update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
+    if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
+        update_config_var $ZBX_CONFIG "Hostname" ""
+        update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+        update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-sqlite3"}"
+        update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
     update_config_var $ZBX_CONFIG "LogType" "console"
     update_config_var $ZBX_CONFIG "LogFile"
@@ -726,40 +127,20 @@ update_zbx_config() {
 
     update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
+    update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
+    update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
 
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
+    update_config_var $ZBX_CONFIG "DBHost"
+    update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
+    update_config_var $ZBX_CONFIG "DBUser"
+    update_config_var $ZBX_CONFIG "DBPort"
+    update_config_var $ZBX_CONFIG "DBPassword"
 
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
-
-    update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
+    update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
+    update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
+    update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
+    update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
 
@@ -771,14 +152,7 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
     update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
-
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
+    : ${ZBX_JAVAGATEWAY_ENABLE:="false"}
     if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
         update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
         update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
@@ -795,7 +169,7 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
     update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
 
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
+    : ${ZBX_ENABLE_SNMP_TRAPS:="false"}
     if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
         update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
         update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
@@ -805,26 +179,13 @@ update_zbx_config() {
     fi
 
     update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
 
     update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
-
     update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
     update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
     update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
-
     update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
     update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
     update_config_var $ZBX_CONFIG "UnreachablePeriod" "${ZBX_UNREACHABLEPERIOD}"
@@ -849,331 +210,45 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
     update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
-
     update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
     update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
     update_config_var $ZBX_CONFIG "SSLCALocation" "$ZABBIX_USER_HOME_DIR/ssl/ssl_ca/"
     update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
     update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
+    update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
+    update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
     update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
     update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
+    update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
+    update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
 
     update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
     update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
-prepare_zbx_web_config() {
-    local db_type=$1
-    local server_name=""
-
-    echo "** Preparing Zabbix frontend configuration file"
-
-    ZBX_WWW_ROOT="/usr/share/zabbix"
-    ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
-
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
+    if [ "$(id -u)" != '0' ]; then
+        update_config_var $ZBX_CONFIG "User" "$(whoami)"
     else
-        echo "**** Zabbix related PHP configuration file not found"
+        update_config_var $ZBX_CONFIG "AllowRoot" "1"
     fi
-
-    ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
-
-    # Escaping characters in parameter value
-    server_name=$(escape_spec_char "${ZBX_SERVER_NAME}")
-    server_user=$(escape_spec_char "${DB_SERVER_ZBX_USER}")
-    server_pass=$(escape_spec_char "${DB_SERVER_ZBX_PASS}")
-    history_storage_url=$(escape_spec_char "${ZBX_HISTORYSTORAGEURL}")
-    history_storage_types=$(escape_spec_char "${ZBX_HISTORYSTORAGETYPES}")
-
-    sed -i \
-        -e "s/{DB_SERVER_HOST}/${DB_SERVER_HOST}/g" \
-        -e "s/{DB_SERVER_PORT}/${DB_SERVER_PORT}/g" \
-        -e "s/{DB_SERVER_DBNAME}/${DB_SERVER_DBNAME}/g" \
-        -e "s/{DB_SERVER_SCHEMA}/${DB_SERVER_SCHEMA}/g" \
-        -e "s/{DB_SERVER_USER}/$server_user/g" \
-        -e "s/{DB_SERVER_PASS}/$server_pass/g" \
-        -e "s/{ZBX_SERVER_HOST}/${ZBX_SERVER_HOST}/g" \
-        -e "s/{ZBX_SERVER_PORT}/${ZBX_SERVER_PORT}/g" \
-        -e "s/{ZBX_SERVER_NAME}/$server_name/g" \
-        -e "s/{ZBX_HISTORYSTORAGEURL}/$history_storage_url/g" \
-        -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
-    "$ZBX_WEB_CONFIG"
-
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
-    [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
-}
-
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
-    fi
-}
-
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
-}
-
-prepare_server() {
-    local db_type=$1
-
-    echo "** Preparing Zabbix server"
-
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
-
-    update_zbx_config "server" "$db_type"
 }
 
 prepare_proxy() {
-    local db_type=$1
-
     echo "Preparing Zabbix proxy"
 
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
-prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix web-interface"
-
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
+    update_zbx_config
 }
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
-    fi
-
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "${1#-}" != "$1" ]; then
+    set -- /usr/sbin/zabbix_proxy "$@"
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
+if [ "$1" == '/usr/sbin/zabbix_proxy' ]; then
+    prepare_proxy
 fi
 
+exec "$@"
+
 #################################################
diff --git a/server-mysql/alpine/Dockerfile b/server-mysql/alpine/Dockerfile
index d3c2dfc4d..4cc15a0ed 100644
--- a/server-mysql/alpine/Dockerfile
+++ b/server-mysql/alpine/Dockerfile
@@ -1,30 +1,19 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL \
-    ZBX_TYPE=server ZBX_DB_TYPE=mysql ZBX_OPT_TYPE=none
-
-LABEL org.label-schema.name="zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix ${ZBX_TYPE} with MySQL database support" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix server (MySQL)" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix server with MySQL database support" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
         zabbix && \
     adduser zabbix dialout && \
@@ -42,9 +31,8 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix/ssl/keys && \
     mkdir -p /var/lib/zabbix/ssl/ssl_ca && \
     chown --quiet -R zabbix:root /var/lib/zabbix && \
-    mkdir -p /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE} && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    mkdir -p /usr/share/doc/zabbix-server-mysql && \
+    apk add --clean-protected --no-cache \
             tini \
             bash \
             fping \
@@ -65,16 +53,16 @@ RUN set -eux && \
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE} --link mysql-server:mysql -p 10051:10051 -d zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} \
+    MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
-            alpine-sdk \
+    apk add --no-cache --virtual build-dependencies \
             autoconf \
             automake \
             coreutils \
@@ -88,6 +76,8 @@ RUN set -eux && \
             openldap-dev \
             pcre-dev \
             git \
+            g++ \
+            make \
             unixodbc-dev && \
     cd /tmp/ && \
     git clone ${ZBX_SOURCES} --branch master --depth 1 --single-branch zabbix-${ZBX_VERSION} && \
@@ -102,8 +92,8 @@ RUN set -eux && \
             --prefix=/usr \
             --sysconfdir=/etc/zabbix \
             --enable-agent \
-            --enable-${ZBX_TYPE} \
-            --with-${ZBX_DB_TYPE} \
+            --enable-server \
+            --with-mysql \
 # Does not support stable iksemel library
 #            --with-jabber \
             --with-ldap \
@@ -118,19 +108,19 @@ RUN set -eux && \
             --silent && \
     make -j"$(nproc)" -s dbschema && \
     make -j"$(nproc)" -s && \
-    cp src/zabbix_${ZBX_TYPE}/zabbix_${ZBX_TYPE} /usr/sbin/zabbix_${ZBX_TYPE} && \
+    cp src/zabbix_server/zabbix_server /usr/sbin/zabbix_server && \
     cp src/zabbix_get/zabbix_get /usr/bin/zabbix_get && \
     cp src/zabbix_sender/zabbix_sender /usr/bin/zabbix_sender && \
-    cp conf/zabbix_${ZBX_TYPE}.conf /etc/zabbix/zabbix_${ZBX_TYPE}.conf && \
+    cp conf/zabbix_server.conf /etc/zabbix/zabbix_server.conf && \
     chown --quiet -R zabbix:root /etc/zabbix && \
-    cat database/${ZBX_DB_TYPE}/schema.sql > database/${ZBX_DB_TYPE}/create.sql && \
-    cat database/${ZBX_DB_TYPE}/images.sql >> database/${ZBX_DB_TYPE}/create.sql && \
-    cat database/${ZBX_DB_TYPE}/data.sql >> database/${ZBX_DB_TYPE}/create.sql && \
-    gzip database/${ZBX_DB_TYPE}/create.sql && \
-    cp database/${ZBX_DB_TYPE}/create.sql.gz /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}/ && \
+    cat database/mysql/schema.sql > database/mysql/create.sql && \
+    cat database/mysql/images.sql >> database/mysql/create.sql && \
+    cat database/mysql/data.sql >> database/mysql/create.sql && \
+    gzip database/mysql/create.sql && \
+    cp database/mysql/create.sql.gz /usr/share/doc/zabbix-server-mysql/ && \
     cd /tmp/ && \
     rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -144,3 +134,7 @@ VOLUME ["/var/lib/zabbix/snmptraps", "/var/lib/zabbix/ssh_keys", "/var/lib/zabbi
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/docker-entrypoint.sh"]
+
+USER zabbix
+
+CMD ["/usr/sbin/zabbix_server", "--foreground", "-c", "/etc/zabbix/zabbix_server.conf"]
diff --git a/server-mysql/alpine/docker-entrypoint.sh b/server-mysql/alpine/docker-entrypoint.sh
index bc758f3eb..efcb7e44e 100755
--- a/server-mysql/alpine/docker-entrypoint.sh
+++ b/server-mysql/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,37 +9,11 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
-# Default Zabbix installation name
-# Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
-# Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
-# Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
-
-# Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
 # User 'zabbix' home directory
 ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
-# Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
 
 # usage: file_env VAR [DEFAULT]
 # as example: file_env 'MYSQL_PASSWORD' 'zabbix'
@@ -130,34 +104,6 @@ configure_db_mysql() {
             --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
 }
 
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
-
 escape_spec_char() {
     local var_value=$1
 
@@ -241,18 +187,14 @@ update_config_multiple_var() {
 
 # Check prerequisites for MySQL database
 check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
+    : ${DB_SERVER_HOST:="mysql-server"}
+    : ${DB_SERVER_PORT:="3306"}
     USE_DB_ROOT_USER=false
     CREATE_ZBX_DB_USER=false
     file_env MYSQL_USER
     file_env MYSQL_PASSWORD
 
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
+    file_env MYSQL_ROOT_PASSWORD
 
     if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
         echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
@@ -273,42 +215,12 @@ check_variables_mysql() {
     [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
 
     # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
+    : ${DB_SERVER_ROOT_USER:=${MYSQL_USER}}
     [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
     DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
     DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
 
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
-# Check prerequisites for PostgreSQL database
-check_variables_postgresql() {
-    local type=$1
-
-    file_env POSTGRES_USER
-    file_env POSTGRES_PASSWORD
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
-
-    DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
-    DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
-
-    DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
-
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
+    DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
 }
 
 check_db_connect_mysql() {
@@ -333,44 +245,6 @@ check_db_connect_mysql() {
     done
 }
 
-check_db_connect_postgresql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    echo "* DB_SERVER_SCHEMA: ${DB_SERVER_SCHEMA}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    else
-        DB_SERVER_ROOT_USER=${DB_SERVER_ZBX_USER}
-        DB_SERVER_ROOT_PASS=${DB_SERVER_ZBX_PASS}
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-
-    WAIT_TIMEOUT=5
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    while [ ! "$(psql -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} -U ${DB_SERVER_ROOT_USER} -d ${DB_SERVER_DBNAME} -l -q 2>/dev/null)" ]; do
-        echo "**** PostgreSQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-}
-
-
 mysql_query() {
     query=$1
     local result=""
@@ -381,30 +255,6 @@ mysql_query() {
     echo $result
 }
 
-psql_query() {
-    query=$1
-    db=$2
-
-    local result=""
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    result=$(psql -A -q -t  -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-             -U ${DB_SERVER_ROOT_USER} -c "$query" $db 2>/dev/null);
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-
-    echo $result
-}
-
 create_db_user_mysql() {
     [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
 
@@ -421,20 +271,6 @@ create_db_user_mysql() {
     mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
 }
 
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
 create_db_database_mysql() {
     DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
 
@@ -448,22 +284,7 @@ create_db_database_mysql() {
     fi
 }
 
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
 create_db_schema_mysql() {
-    local type=$1
-
     DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
 
     if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
@@ -474,249 +295,19 @@ create_db_schema_mysql() {
     if [ -z "${ZBX_DB_VERSION}" ]; then
         echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
 
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
+        zcat /usr/share/doc/zabbix-server-mysql/create.sql.gz | mysql --silent --skip-column-names \
                     -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
                     -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
                     ${DB_SERVER_DBNAME} 1>/dev/null
     fi
 }
 
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
-prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
-    if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
-        echo "** Adding Zabbix virtual host (HTTPS)"
-        if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
-    fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
-}
-
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
 update_zbx_config() {
-    local type=$1
-    local db_type=$2
+    echo "** Preparing Zabbix server configuration file"
 
-    echo "** Preparing Zabbix $type configuration file"
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
-    else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    fi
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
     update_config_var $ZBX_CONFIG "LogType" "console"
@@ -726,43 +317,18 @@ update_zbx_config() {
 
     update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
+    update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
+    update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
+    update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
+    update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
+    update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
+    update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
 
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
+    update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
+    update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
 
     update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
-
     update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
     update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_IPMIPOLLERS}"
     update_config_var $ZBX_CONFIG "StartPollersUnreachable" "${ZBX_STARTPOLLERSUNREACHABLE}"
@@ -771,14 +337,14 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
     update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
+    update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
+    update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
+    update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
+    update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
+    update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
+    update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
 
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
+    : ${ZBX_JAVAGATEWAY_ENABLE:="false"}
     if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
         update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
         update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
@@ -795,7 +361,7 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
     update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
 
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
+    : ${ZBX_ENABLE_SNMP_TRAPS:="false"}
     if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
         update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
         update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
@@ -805,25 +371,19 @@ update_zbx_config() {
     fi
 
     update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
+    update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
     update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
     update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
+    update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
+    update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
 
     update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
     update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
@@ -849,11 +409,9 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
     update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
+    update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
+    update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
     update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
@@ -861,319 +419,41 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
     update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
     update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
     update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
-
     update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
     update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
-prepare_zbx_web_config() {
-    local db_type=$1
-    local server_name=""
-
-    echo "** Preparing Zabbix frontend configuration file"
-
-    ZBX_WWW_ROOT="/usr/share/zabbix"
-    ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
-
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
+    if [ "$(id -u)" != '0' ]; then
+        update_config_var $ZBX_CONFIG "User" "$(whoami)"
     else
-        echo "**** Zabbix related PHP configuration file not found"
+        update_config_var $ZBX_CONFIG "AllowRoot" "1"
     fi
-
-    ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
-
-    # Escaping characters in parameter value
-    server_name=$(escape_spec_char "${ZBX_SERVER_NAME}")
-    server_user=$(escape_spec_char "${DB_SERVER_ZBX_USER}")
-    server_pass=$(escape_spec_char "${DB_SERVER_ZBX_PASS}")
-    history_storage_url=$(escape_spec_char "${ZBX_HISTORYSTORAGEURL}")
-    history_storage_types=$(escape_spec_char "${ZBX_HISTORYSTORAGETYPES}")
-
-    sed -i \
-        -e "s/{DB_SERVER_HOST}/${DB_SERVER_HOST}/g" \
-        -e "s/{DB_SERVER_PORT}/${DB_SERVER_PORT}/g" \
-        -e "s/{DB_SERVER_DBNAME}/${DB_SERVER_DBNAME}/g" \
-        -e "s/{DB_SERVER_SCHEMA}/${DB_SERVER_SCHEMA}/g" \
-        -e "s/{DB_SERVER_USER}/$server_user/g" \
-        -e "s/{DB_SERVER_PASS}/$server_pass/g" \
-        -e "s/{ZBX_SERVER_HOST}/${ZBX_SERVER_HOST}/g" \
-        -e "s/{ZBX_SERVER_PORT}/${ZBX_SERVER_PORT}/g" \
-        -e "s/{ZBX_SERVER_NAME}/$server_name/g" \
-        -e "s/{ZBX_HISTORYSTORAGEURL}/$history_storage_url/g" \
-        -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
-    "$ZBX_WEB_CONFIG"
-
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
-    [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
-}
-
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
-    fi
-}
-
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
 }
 
 prepare_server() {
-    local db_type=$1
-
     echo "** Preparing Zabbix server"
 
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
+    check_variables_mysql
+    check_db_connect_mysql
+    create_db_user_mysql
+    create_db_database_mysql
+    create_db_schema_mysql
 
-    update_zbx_config "server" "$db_type"
-}
-
-prepare_proxy() {
-    local db_type=$1
-
-    echo "Preparing Zabbix proxy"
-
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
-prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix web-interface"
-
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
+    update_zbx_config
 }
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
+if [ "${1#-}" != "$1" ]; then
+    set -- /usr/sbin/zabbix_server "$@"
     fi
 
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "$1" == '/usr/sbin/zabbix_server' ]; then
+    prepare_server
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
-fi
+exec "$@"
 
 #################################################
diff --git a/server-pgsql/alpine/Dockerfile b/server-pgsql/alpine/Dockerfile
index 0f32f65b4..856aa1a95 100644
--- a/server-pgsql/alpine/Dockerfile
+++ b/server-pgsql/alpine/Dockerfile
@@ -1,30 +1,19 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL \
-    ZBX_TYPE=server ZBX_DB_TYPE=postgresql ZBX_OPT_TYPE=none
-
-LABEL org.label-schema.name="zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix ${ZBX_TYPE} with PostgreSQL database support" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix server (PostgreSQL)" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix server with PostgreSQL database support" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
         zabbix && \
     adduser zabbix dialout && \
@@ -42,9 +31,8 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix/ssl/keys && \
     mkdir -p /var/lib/zabbix/ssl/ssl_ca && \
     chown --quiet -R zabbix:root /var/lib/zabbix && \
-    mkdir -p /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE} && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    mkdir -p /usr/share/doc/zabbix-server-postgresql && \
+    apk add --clean-protected --no-cache \
             tini \
             bash \
             fping \
@@ -65,15 +53,16 @@ RUN set -eux && \
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-${ZBX_TYPE}-pgsql --link postgres-server:postgres -p 10051:10051 -d zabbix-${ZBX_TYPE}-pgsql:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} \
+    MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
+    apk add --no-cache --virtual build-dependencies \
             alpine-sdk \
             autoconf \
             automake \
@@ -88,6 +77,8 @@ RUN set -eux && \
             pcre-dev \
             postgresql-dev \
             git \
+            g++ \
+            make \
             unixodbc-dev && \
     cd /tmp/ && \
     git clone ${ZBX_SOURCES} --branch master --depth 1 --single-branch zabbix-${ZBX_VERSION} && \
@@ -102,8 +93,8 @@ RUN set -eux && \
             --prefix=/usr \
             --sysconfdir=/etc/zabbix \
             --enable-agent \
-            --enable-${ZBX_TYPE} \
-            --with-${ZBX_DB_TYPE} \
+            --enable-server \
+            --with-postgresql \
 # Does not support stable iksemel library
 #            --with-jabber \
             --with-ldap \
@@ -118,20 +109,20 @@ RUN set -eux && \
             --silent && \
     make -j"$(nproc)" -s dbschema && \
     make -j"$(nproc)" -s && \
-    cp src/zabbix_${ZBX_TYPE}/zabbix_${ZBX_TYPE} /usr/sbin/zabbix_${ZBX_TYPE} && \
+    cp src/zabbix_server/zabbix_server /usr/sbin/zabbix_server && \
     cp src/zabbix_get/zabbix_get /usr/bin/zabbix_get && \
     cp src/zabbix_sender/zabbix_sender /usr/bin/zabbix_sender && \
-    cp conf/zabbix_${ZBX_TYPE}.conf /etc/zabbix/zabbix_${ZBX_TYPE}.conf && \
+    cp conf/zabbix_server.conf /etc/zabbix/zabbix_server.conf && \
     chown --quiet -R zabbix:root /etc/zabbix && \
-    cat database/${ZBX_DB_TYPE}/schema.sql > database/${ZBX_DB_TYPE}/create.sql && \
-    cat database/${ZBX_DB_TYPE}/images.sql >> database/${ZBX_DB_TYPE}/create.sql && \
-    cat database/${ZBX_DB_TYPE}/data.sql >> database/${ZBX_DB_TYPE}/create.sql && \
-    gzip database/${ZBX_DB_TYPE}/create.sql && \
-    cp database/${ZBX_DB_TYPE}/create.sql.gz /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}/ && \
-    cp database/${ZBX_DB_TYPE}/timescaledb.sql /usr/share/doc/zabbix-${ZBX_TYPE}-${ZBX_DB_TYPE}/ && \
+    cat database/postgresql/schema.sql > database/postgresql/create.sql && \
+    cat database/postgresql/images.sql >> database/postgresql/create.sql && \
+    cat database/postgresql/data.sql >> database/postgresql/create.sql && \
+    gzip database/postgresql/create.sql && \
+    cp database/postgresql/create.sql.gz /usr/share/doc/zabbix-server-postgresql/ && \
+    cp database/postgresql/timescaledb.sql /usr/share/doc/zabbix-server-postgresql/ && \
     cd /tmp/ && \
     rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -145,3 +136,7 @@ VOLUME ["/var/lib/zabbix/snmptraps", "/var/lib/zabbix/ssh_keys", "/var/lib/zabbi
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/docker-entrypoint.sh"]
+
+USER zabbix
+
+CMD ["/usr/sbin/zabbix_server", "--foreground", "-c", "/etc/zabbix/zabbix_server.conf"]
diff --git a/server-pgsql/alpine/docker-entrypoint.sh b/server-pgsql/alpine/docker-entrypoint.sh
index bc758f3eb..089bb81a0 100755
--- a/server-pgsql/alpine/docker-entrypoint.sh
+++ b/server-pgsql/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,27 +9,6 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
-# Default Zabbix installation name
-# Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
-# Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
-# Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
-
-# Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
 #Enable PostgreSQL timescaleDB feature:
 ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
 
@@ -38,8 +17,6 @@ ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
 ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
-# Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
 
 # usage: file_env VAR [DEFAULT]
 # as example: file_env 'MYSQL_PASSWORD' 'zabbix'
@@ -72,92 +49,6 @@ file_env() {
     unset "$fileVar"
 }
 
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
-
 escape_spec_char() {
     local var_value=$1
 
@@ -239,62 +130,14 @@ update_config_multiple_var() {
     done
 }
 
-# Check prerequisites for MySQL database
-check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
-    USE_DB_ROOT_USER=false
-    CREATE_ZBX_DB_USER=false
-    file_env MYSQL_USER
-    file_env MYSQL_PASSWORD
-
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
-        echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
-        exit 1
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ ! -n "${MYSQL_ROOT_PASSWORD}" ] && [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" != "true" ]; then
-        echo "*** Impossible to use MySQL server because 'root' password is not defined and it is not empty"
-        exit 1
-    fi
-
-    if [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || [ -n "${MYSQL_ROOT_PASSWORD}" ]; then
-        USE_DB_ROOT_USER=true
-        DB_SERVER_ROOT_USER="root"
-        DB_SERVER_ROOT_PASS=${MYSQL_ROOT_PASSWORD:-""}
-    fi
-
-    [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
-
-    # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
-    [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
-    DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
 # Check prerequisites for PostgreSQL database
 check_variables_postgresql() {
-    local type=$1
-
     file_env POSTGRES_USER
     file_env POSTGRES_PASSWORD
 
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
+    : ${DB_SERVER_HOST:="postgres-server"}
+    : ${DB_SERVER_PORT:="5432"}
+    : ${CREATE_ZBX_DB_USER:="false"}
 
     DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
     DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
@@ -302,35 +145,9 @@ check_variables_postgresql() {
     DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
     DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
 
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
+    : ${DB_SERVER_SCHEMA:="public"}
 
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
-}
-
-check_db_connect_mysql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    WAIT_TIMEOUT=5
-
-    while [ ! "$(mysqladmin ping -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} -u ${DB_SERVER_ROOT_USER} \
-                --password="${DB_SERVER_ROOT_PASS}" --silent --connect_timeout=10)" ]; do
-        echo "**** MySQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
+    DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
 }
 
 check_db_connect_postgresql() {
@@ -370,17 +187,6 @@ check_db_connect_postgresql() {
     unset PGOPTIONS
 }
 
-
-mysql_query() {
-    query=$1
-    local result=""
-
-    result=$(mysql --silent --skip-column-names -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-             -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}" -e "$query")
-
-    echo $result
-}
-
 psql_query() {
     query=$1
     db=$2
@@ -405,22 +211,6 @@ psql_query() {
     echo $result
 }
 
-create_db_user_mysql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in MySQL database"
-
-    USER_EXISTS=$(mysql_query "SELECT 1 FROM mysql.user WHERE user = '${DB_SERVER_ZBX_USER}' AND host = '%'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        mysql_query "CREATE USER '${DB_SERVER_ZBX_USER}'@'%' IDENTIFIED BY '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        mysql_query "ALTER USER ${DB_SERVER_ZBX_USER} IDENTIFIED BY '${DB_SERVER_ZBX_PASS}';" 1>/dev/null
-    fi
-
-    mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-}
-
 create_db_user_postgresql() {
     [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
 
@@ -435,19 +225,6 @@ create_db_user_postgresql() {
     fi
 }
 
-create_db_database_mysql() {
-    DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        mysql_query "CREATE DATABASE ${DB_SERVER_DBNAME} CHARACTER SET utf8 COLLATE utf8_bin" 1>/dev/null
-        # better solution?
-        mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
-    fi
-}
-
 create_db_database_postgresql() {
     DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
 
@@ -461,29 +238,7 @@ create_db_database_postgresql() {
     psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
 }
 
-create_db_schema_mysql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(mysql_query "SELECT mandatory FROM ${DB_SERVER_DBNAME}.dbversion")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
-
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
-                    -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-                    -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
-                    ${DB_SERVER_DBNAME} 1>/dev/null
-    fi
-}
-
 create_db_schema_postgresql() {
-    local type=$1
-
     DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
                                          c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
 
@@ -508,7 +263,7 @@ create_db_schema_postgresql() {
             export PGOPTIONS
         fi
 
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
+        zcat /usr/share/doc/zabbix-server-postgresql/create.sql.gz | psql -q \
                 -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
                 -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
 
@@ -523,200 +278,15 @@ create_db_schema_postgresql() {
     fi
 }
 
-prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
-    if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
-        echo "** Adding Zabbix virtual host (HTTPS)"
-        if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
-    fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
-}
-
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
 update_zbx_config() {
     local type=$1
     local db_type=$2
 
-    echo "** Preparing Zabbix $type configuration file"
+    echo "** Preparing Zabbix server configuration file"
 
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
-    else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    fi
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
     update_config_var $ZBX_CONFIG "LogType" "console"
@@ -726,43 +296,18 @@ update_zbx_config() {
 
     update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
+    update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
+    update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
+    update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
+    update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
+    update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
+    update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
 
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
+    update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
+    update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
 
     update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
-
     update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
     update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_IPMIPOLLERS}"
     update_config_var $ZBX_CONFIG "StartPollersUnreachable" "${ZBX_STARTPOLLERSUNREACHABLE}"
@@ -771,14 +316,15 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
     update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
+    update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
+    update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
+    update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
+    update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
 
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
+    update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
+    update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
+
+    : ${ZBX_JAVAGATEWAY_ENABLE:="false"}
     if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
         update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
         update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
@@ -795,7 +341,7 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
     update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
 
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
+    : ${ZBX_ENABLE_SNMP_TRAPS:="false"}
     if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
         update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
         update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
@@ -805,25 +351,20 @@ update_zbx_config() {
     fi
 
     update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
+
+    update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
+    update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
 
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
     update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
     update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
+    update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
+    update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
 
     update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
     update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
@@ -849,11 +390,9 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
     update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
 
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
+    update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
+    update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
+    update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
 
     update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
     update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
@@ -861,319 +400,41 @@ update_zbx_config() {
     update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
     update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
     update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
     update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
-
     update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
     update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
-prepare_zbx_web_config() {
-    local db_type=$1
-    local server_name=""
-
-    echo "** Preparing Zabbix frontend configuration file"
-
-    ZBX_WWW_ROOT="/usr/share/zabbix"
-    ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
-
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
+    if [ "$(id -u)" != '0' ]; then
+        update_config_var $ZBX_CONFIG "User" "$(whoami)"
     else
-        echo "**** Zabbix related PHP configuration file not found"
+        update_config_var $ZBX_CONFIG "AllowRoot" "1"
     fi
-
-    ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
-
-    # Escaping characters in parameter value
-    server_name=$(escape_spec_char "${ZBX_SERVER_NAME}")
-    server_user=$(escape_spec_char "${DB_SERVER_ZBX_USER}")
-    server_pass=$(escape_spec_char "${DB_SERVER_ZBX_PASS}")
-    history_storage_url=$(escape_spec_char "${ZBX_HISTORYSTORAGEURL}")
-    history_storage_types=$(escape_spec_char "${ZBX_HISTORYSTORAGETYPES}")
-
-    sed -i \
-        -e "s/{DB_SERVER_HOST}/${DB_SERVER_HOST}/g" \
-        -e "s/{DB_SERVER_PORT}/${DB_SERVER_PORT}/g" \
-        -e "s/{DB_SERVER_DBNAME}/${DB_SERVER_DBNAME}/g" \
-        -e "s/{DB_SERVER_SCHEMA}/${DB_SERVER_SCHEMA}/g" \
-        -e "s/{DB_SERVER_USER}/$server_user/g" \
-        -e "s/{DB_SERVER_PASS}/$server_pass/g" \
-        -e "s/{ZBX_SERVER_HOST}/${ZBX_SERVER_HOST}/g" \
-        -e "s/{ZBX_SERVER_PORT}/${ZBX_SERVER_PORT}/g" \
-        -e "s/{ZBX_SERVER_NAME}/$server_name/g" \
-        -e "s/{ZBX_HISTORYSTORAGEURL}/$history_storage_url/g" \
-        -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
-    "$ZBX_WEB_CONFIG"
-
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
-    [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
-}
-
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
-    fi
-}
-
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
 }
 
 prepare_server() {
-    local db_type=$1
-
     echo "** Preparing Zabbix server"
 
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
+    check_variables_postgresql
+    check_db_connect_postgresql
+    create_db_user_postgresql
+    create_db_database_postgresql
+    create_db_schema_postgresql
 
-    update_zbx_config "server" "$db_type"
-}
-
-prepare_proxy() {
-    local db_type=$1
-
-    echo "Preparing Zabbix proxy"
-
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
-prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix web-interface"
-
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
+    update_zbx_config
 }
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
-    fi
-
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "${1#-}" != "$1" ]; then
+    set -- /usr/sbin/zabbix_server "$@"
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
+if [ "$1" == '/usr/sbin/zabbix_server' ]; then
+    prepare_server
 fi
 
+exec "$@"
+
 #################################################
diff --git a/snmptraps/alpine/Dockerfile b/snmptraps/alpine/Dockerfile
index 714dc3c8a..acf5ea341 100644
--- a/snmptraps/alpine/Dockerfile
+++ b/snmptraps/alpine/Dockerfile
@@ -1,32 +1,24 @@
 FROM alpine:3.10
-LABEL maintainer "Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL
-
-LABEL org.label-schema.name="zabbix-snmptraps-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix SNMP traps receiver" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+ARG APK_FLAGS_PERSISTENT="--clean-protected --no-cache"
+ARG APK_FLAGS_DEV="--no-cache"
 
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="1.14" \
-      org.label-schema.vcs-url="https://anonscm.debian.org/gitweb/?p=collab-maint/snmptrapfmt.git" \
-      org.label-schema.docker.cmd="docker run --name zabbix-snmptraps --link zabbix-server:zabbix-server -p 162:162/UDP -d zabbix-snmptraps:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} \
+    MIBDIRS=/usr/share/snmp/mibs:/var/lib/zabbix/mibs MIBS=+ALL
+
+LABEL org.opencontainers.image.title="zabbix-snmptraps-alpine" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="Zabbix server with MySQL database support" \
+      org.opencontainers.image.licenses="GPL v2.0" \
+      org.opencontainers.image.documentation="Zabbix SNMP traps receiver" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="https://anonscm.debian.org/gitweb/?p=collab-maint/snmptrapfmt.git"
 
 STOPSIGNAL SIGTERM
 
@@ -69,7 +61,7 @@ RUN set -eux && \
         "/etc/snmp/snmptrapfmt.conf" && \
     rm -rf /tmp/snmptrapfmt_1.14+nmu1ubuntu2.tar.gz && \
     rm -rf /tmp/snmptrapfmt-1.14+nmu1ubuntu1/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
diff --git a/web-apache-mysql/alpine/Dockerfile b/web-apache-mysql/alpine/Dockerfile
index d0365016a..9af1efcbe 100644
--- a/web-apache-mysql/alpine/Dockerfile
+++ b/web-apache-mysql/alpine/Dockerfile
@@ -1,38 +1,26 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON="-q"
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm \
-    ZBX_TYPE=frontend ZBX_DB_TYPE=mysql ZBX_OPT_TYPE=apache
-
-LABEL org.label-schema.name="zabbix-web-${ZBX_OPT_TYPE}-${ZBX_DB_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix web-interface based on Apache2 web server with MySQL database support" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix web-interface (Apache, MySQL)" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="abbix web-interface based on Apache2 web server with MySQL database support" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
             -H \
         zabbix && \
     mkdir -p /etc/zabbix && \
     mkdir -p /etc/zabbix/web && \
     chown --quiet -R zabbix:root /etc/zabbix && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    apk add --clean-protected --no-cache \
             apache2 \
             bash \
             curl \
@@ -50,23 +38,34 @@ RUN set -eux && \
             php7-session \
             php7-simplexml \
             php7-sockets \
+            php7-fileinfo \
             php7-xmlreader \
             php7-xmlwriter && \
-    apk add ${APK_FLAGS_PERSISTENT} --no-scripts apache2-ssl && \
+    apk add --clean-protected --no-cache --no-scripts apache2-ssl && \
+    rm -f "/etc/apache2/conf.d/default.conf" && \
+    rm -f "/etc/apache2/conf.d/ssl.conf" && \
+    sed -ri \
+        -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
+        -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
+        "/etc/apache2/httpd.conf" && \
+    sed -ri \
+        -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
+        "/etc/apache2/conf.d/mpm.conf" && \
+    rm -f "/var/run/apache2/apache2.pid" && \
     rm -rf /var/cache/apk/*
 
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-web-${ZBX_OPT_TYPE}-${ZBX_DB_TYPE} --link mysql-server:mysql --link zabbix-server:zabbix-server -p 80:80 -d zabbix-web-${ZBX_OPT_TYPE}-${ZBX_DB_TYPE}:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
+    apk add --no-cache --virtual build-dependencies \
             gettext \
             git && \
     cd /usr/share/ && \
@@ -78,8 +77,8 @@ RUN set -eux && \
     rm -f conf/zabbix.conf.php && \
     rm -rf tests && \
     ./locale/make_mo.sh && \
-    chown --quiet -R apache:apache /usr/share/zabbix/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    ln -s "/etc/zabbix/web/zabbix.conf.php" "/usr/share/zabbix/conf/zabbix.conf.php" && \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -96,3 +95,5 @@ COPY ["conf/etc/php7/conf.d/99-zabbix.ini", "/etc/php7/conf.d/"]
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["docker-entrypoint.sh"]
+
+CMD ["/usr/sbin/httpd", "-D", "FOREGROUND"]
diff --git a/web-apache-mysql/alpine/docker-entrypoint.sh b/web-apache-mysql/alpine/docker-entrypoint.sh
index bc758f3eb..f211e308c 100755
--- a/web-apache-mysql/alpine/docker-entrypoint.sh
+++ b/web-apache-mysql/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,37 +9,25 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
 # Default Zabbix installation name
 # Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
+: ${ZBX_SERVER_NAME:="Zabbix docker"}
 # Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
+: ${ZBX_SERVER_HOST:="zabbix-server"}
 # Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
+: ${ZBX_SERVER_PORT:="10051"}
 
 # Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
+: ${PHP_TZ:="Europe/Riga"}
 
 #Enable PostgreSQL timescaleDB feature:
 ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
 
 # Default directories
-# User 'zabbix' home directory
-ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
 # Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
+ZABBIX_WWW_ROOT="/usr/share/zabbix"
 
 # usage: file_env VAR [DEFAULT]
 # as example: file_env 'MYSQL_PASSWORD' 'zabbix'
@@ -72,92 +60,6 @@ file_env() {
     unset "$fileVar"
 }
 
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
-
 escape_spec_char() {
     local var_value=$1
 
@@ -202,11 +104,6 @@ update_config_var() {
         return
     fi
 
-    # Use full path to a file for TLS related configuration parameters
-    if [[ $var_name =~ ^TLS.*File$ ]]; then
-        var_value=$ZABBIX_USER_HOME_DIR/enc/$var_value
-    fi
-
     # Escaping characters in parameter value
     var_value=$(escape_spec_char "$var_value")
 
@@ -241,19 +138,13 @@ update_config_multiple_var() {
 
 # Check prerequisites for MySQL database
 check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
+    : ${DB_SERVER_HOST:="mysql-server"}
+    : ${DB_SERVER_PORT:="3306"}
     USE_DB_ROOT_USER=false
     CREATE_ZBX_DB_USER=false
     file_env MYSQL_USER
     file_env MYSQL_PASSWORD
 
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
-
     if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
         echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
         exit 1
@@ -273,42 +164,12 @@ check_variables_mysql() {
     [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
 
     # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
+    : ${DB_SERVER_ROOT_USER:=${MYSQL_USER}}
     [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
     DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
     DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
 
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
-# Check prerequisites for PostgreSQL database
-check_variables_postgresql() {
-    local type=$1
-
-    file_env POSTGRES_USER
-    file_env POSTGRES_PASSWORD
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
-
-    DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
-    DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
-
-    DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
-
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
+    DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
 }
 
 check_db_connect_mysql() {
@@ -333,44 +194,6 @@ check_db_connect_mysql() {
     done
 }
 
-check_db_connect_postgresql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    echo "* DB_SERVER_SCHEMA: ${DB_SERVER_SCHEMA}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    else
-        DB_SERVER_ROOT_USER=${DB_SERVER_ZBX_USER}
-        DB_SERVER_ROOT_PASS=${DB_SERVER_ZBX_PASS}
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-
-    WAIT_TIMEOUT=5
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    while [ ! "$(psql -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} -U ${DB_SERVER_ROOT_USER} -d ${DB_SERVER_DBNAME} -l -q 2>/dev/null)" ]; do
-        echo "**** PostgreSQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-}
-
-
 mysql_query() {
     query=$1
     local result=""
@@ -381,554 +204,43 @@ mysql_query() {
     echo $result
 }
 
-psql_query() {
-    query=$1
-    db=$2
-
-    local result=""
-
-    if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-        export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-    fi
-    
-    if [ -n "${DB_SERVER_SCHEMA}" ]; then
-        PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-        export PGOPTIONS
-    fi
-
-    result=$(psql -A -q -t  -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-             -U ${DB_SERVER_ROOT_USER} -c "$query" $db 2>/dev/null);
-
-    unset PGPASSWORD
-    unset PGOPTIONS
-
-    echo $result
-}
-
-create_db_user_mysql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in MySQL database"
-
-    USER_EXISTS=$(mysql_query "SELECT 1 FROM mysql.user WHERE user = '${DB_SERVER_ZBX_USER}' AND host = '%'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        mysql_query "CREATE USER '${DB_SERVER_ZBX_USER}'@'%' IDENTIFIED BY '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        mysql_query "ALTER USER ${DB_SERVER_ZBX_USER} IDENTIFIED BY '${DB_SERVER_ZBX_PASS}';" 1>/dev/null
-    fi
-
-    mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-}
-
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
-create_db_database_mysql() {
-    DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        mysql_query "CREATE DATABASE ${DB_SERVER_DBNAME} CHARACTER SET utf8 COLLATE utf8_bin" 1>/dev/null
-        # better solution?
-        mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
-    fi
-}
-
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
-create_db_schema_mysql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(mysql_query "SELECT mandatory FROM ${DB_SERVER_DBNAME}.dbversion")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
-
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
-                    -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-                    -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
-                    ${DB_SERVER_DBNAME} 1>/dev/null
-    fi
-}
-
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
 prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
+    APACHE_SITES_DIR=/etc/apache2/conf.d
 
     echo "** Adding Zabbix virtual host (HTTP)"
     if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
         ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
     else
         echo "**** Impossible to enable HTTP virtual host"
     fi
 
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
     if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
         echo "** Adding Zabbix virtual host (HTTPS)"
         if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
             ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
         else
             echo "**** Impossible to enable HTTPS virtual host"
         fi
     else
         echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
     fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
 }
 
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
-update_zbx_config() {
-    local type=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix $type configuration file"
-
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
-    else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
-    update_config_var $ZBX_CONFIG "LogType" "console"
-    update_config_var $ZBX_CONFIG "LogFile"
-    update_config_var $ZBX_CONFIG "LogFileSize"
-    update_config_var $ZBX_CONFIG "PidFile"
-
-    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
-
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
-
-    update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
-
-    update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_IPMIPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartPollersUnreachable" "${ZBX_STARTPOLLERSUNREACHABLE}"
-    update_config_var $ZBX_CONFIG "StartTrappers" "${ZBX_STARTTRAPPERS}"
-    update_config_var $ZBX_CONFIG "StartPingers" "${ZBX_STARTPINGERS}"
-    update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
-    update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
-
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
-    if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
-        update_config_var $ZBX_CONFIG "StartJavaPollers" "${ZBX_STARTJAVAPOLLERS:-"5"}"
-    else
-        update_config_var $ZBX_CONFIG "JavaGateway"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort"
-        update_config_var $ZBX_CONFIG "StartJavaPollers"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartVMwareCollectors" "${ZBX_STARTVMWARECOLLECTORS}"
-    update_config_var $ZBX_CONFIG "VMwareFrequency" "${ZBX_VMWAREFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwarePerfFrequency" "${ZBX_VMWAREPERFFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
-    update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
-
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
-    if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
-    else
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper"
-    fi
-
-    update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
-    update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
-    update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
-
-    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
-    update_config_var $ZBX_CONFIG "UnreachablePeriod" "${ZBX_UNREACHABLEPERIOD}"
-    update_config_var $ZBX_CONFIG "UnavailableDelay" "${ZBX_UNAVAILABLEDELAY}"
-    update_config_var $ZBX_CONFIG "UnreachableDelay" "${ZBX_UNREACHABLEDELAY}"
-
-    update_config_var $ZBX_CONFIG "AlertScriptsPath" "/usr/lib/zabbix/alertscripts"
-    update_config_var $ZBX_CONFIG "ExternalScripts" "/usr/lib/zabbix/externalscripts"
-
-    # Possible few fping locations
-    if [ -f "/usr/bin/fping" ]; then
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/bin/fping"
-    else
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/sbin/fping"
-    fi
-    if [ -f "/usr/bin/fping6" ]; then
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/bin/fping6"
-    else
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/sbin/fping6"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
-    update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
-    update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
-    update_config_var $ZBX_CONFIG "SSLCALocation" "$ZABBIX_USER_HOME_DIR/ssl/ssl_ca/"
-    update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
-    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
 prepare_zbx_web_config() {
-    local db_type=$1
     local server_name=""
 
     echo "** Preparing Zabbix frontend configuration file"
 
     ZBX_WWW_ROOT="/usr/share/zabbix"
     ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
+    PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
 
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
-    else
-        echo "**** Zabbix related PHP configuration file not found"
-    fi
+    update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
+    update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
+    update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
+    update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
+    update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
+    update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
 
     ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
 
@@ -953,227 +265,24 @@ prepare_zbx_web_config() {
         -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
     "$ZBX_WEB_CONFIG"
 
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
     [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
 }
 
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
-    fi
-}
-
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
-}
-
-prepare_server() {
-    local db_type=$1
-
-    echo "** Preparing Zabbix server"
-
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
-
-    update_zbx_config "server" "$db_type"
-}
-
-prepare_proxy() {
-    local db_type=$1
-
-    echo "Preparing Zabbix proxy"
-
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
 prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
     echo "** Preparing Zabbix web-interface"
 
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
+    check_variables_mysql
+    check_db_connect_mysql
+    prepare_web_server_apache
+    prepare_zbx_web_config
 }
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
-    fi
-
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "$1" == '/usr/sbin/httpd' ]; then
+    prepare_web
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
-fi
+exec "$@"
 
 #################################################
diff --git a/web-apache-pgsql/alpine/Dockerfile b/web-apache-pgsql/alpine/Dockerfile
index d29e3eff2..dc6e2cb5f 100644
--- a/web-apache-pgsql/alpine/Dockerfile
+++ b/web-apache-pgsql/alpine/Dockerfile
@@ -1,38 +1,26 @@
 FROM alpine:3.10
-LABEL maintainer="Alexey Pustovalov <alexey.pustovalov@zabbix.com>"
 
-ARG BUILD_DATE
-ARG VCS_REF
-
-ARG APK_FLAGS_COMMON=""
-ARG APK_FLAGS_PERSISTENT="${APK_FLAGS_COMMON} --clean-protected --no-cache"
-ARG APK_FLAGS_DEV="${APK_FLAGS_COMMON} --no-cache"
-ENV TERM=xterm \
-    ZBX_TYPE=frontend ZBX_DB_TYPE=postgresql ZBX_OPT_TYPE=apache
-
-LABEL org.label-schema.name="zabbix-web-${ZBX_OPT_TYPE}-${ZBX_DB_TYPE}-alpine" \
-      org.label-schema.vendor="Zabbix LLC" \
-      org.label-schema.url="https://zabbix.com/" \
-      org.label-schema.description="Zabbix web-interface based on Apache2 web server with PostgreSQL database support" \
-      org.label-schema.vcs-ref="${VCS_REF}" \
-      org.label-schema.build-date="${BUILD_DATE}" \
-      org.label-schema.schema-version="1.0" \
-      org.label-schema.license="GPL v2.0"
+LABEL org.opencontainers.image.title="Zabbix web-interface (Apache, PostgreSQL)" \
+      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
+      org.opencontainers.image.vendor="Zabbix LLC" \
+      org.opencontainers.image.url="https://zabbix.com/" \
+      org.opencontainers.image.description="abbix web-interface based on Apache2 web server with PostgreSQL database support" \
+      org.opencontainers.image.licenses="GPL v2.0"
 
 STOPSIGNAL SIGTERM
 
 RUN set -eux && \
-    addgroup zabbix && \
+    addgroup -S -g 1000 zabbix && \
     adduser -S \
             -D -G zabbix \
+            -u 999 \
             -h /var/lib/zabbix/ \
             -H \
         zabbix && \
     mkdir -p /etc/zabbix && \
     mkdir -p /etc/zabbix/web && \
     chown --quiet -R zabbix:root /etc/zabbix && \
-    apk update && \
-    apk add ${APK_FLAGS_PERSISTENT} \
+    apk add --clean-protected --no-cache \
             apache2 \
             bash \
             curl \
@@ -48,24 +36,35 @@ RUN set -eux && \
             php7-session \
             php7-simplexml \
             php7-sockets \
+            php7-fileinfo \
             php7-xmlreader \
             php7-xmlwriter \
             postgresql-client && \
-    apk add ${APK_FLAGS_PERSISTENT} --no-scripts apache2-ssl && \
+    apk add --clean-protected --no-cache --no-scripts apache2-ssl && \
+    rm -f "/etc/apache2/conf.d/default.conf" && \
+    rm -f "/etc/apache2/conf.d/ssl.conf" && \
+    sed -ri \
+        -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
+        -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
+        "/etc/apache2/httpd.conf" && \
+    sed -ri \
+        -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
+        "/etc/apache2/conf.d/mpm.conf" && \
+    rm -f "/var/run/apache2/apache2.pid" && \
     rm -rf /var/cache/apk/*
 
 ARG MAJOR_VERSION=4.4
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git
-ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
 
-LABEL org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
-      org.label-schema.version="${ZBX_VERSION}" \
-      org.label-schema.vcs-url="${ZBX_SOURCES}" \
-      org.label-schema.docker.cmd="docker run --name zabbix-web-${ZBX_OPT_TYPE}-pgsql --link postgres-server:postgres --link zabbix-server:zabbix-server -p 80:80 -d zabbix-web-${ZBX_OPT_TYPE}-pgsql:alpine-${ZBX_VERSION}"
+ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}
+
+LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
+      org.opencontainers.image.version="${ZBX_VERSION}" \
+      org.opencontainers.image.source="${ZBX_SOURCES}"
 
 RUN set -eux && \
-    apk add ${APK_FLAGS_DEV} --virtual build-dependencies \
+    apk add --no-cache --virtual build-dependencies \
             gettext \
             git && \
     cd /usr/share/ && \
@@ -77,8 +76,8 @@ RUN set -eux && \
     rm -f conf/zabbix.conf.php && \
     rm -rf tests && \
     ./locale/make_mo.sh && \
-    chown --quiet -R apache:apache /usr/share/zabbix/ && \
-    apk del ${APK_FLAGS_COMMON} --purge --no-network \
+    ln -s "/etc/zabbix/web/zabbix.conf.php" "/usr/share/zabbix/conf/zabbix.conf.php" && \
+    apk del --purge --no-network \
             build-dependencies && \
     rm -rf /var/cache/apk/*
 
@@ -95,3 +94,5 @@ COPY ["conf/etc/php7/conf.d/99-zabbix.ini", "/etc/php7/conf.d/"]
 COPY ["docker-entrypoint.sh", "/usr/bin/"]
 
 ENTRYPOINT ["docker-entrypoint.sh"]
+
+CMD ["/usr/sbin/httpd", "-D", "FOREGROUND"]
diff --git a/web-apache-pgsql/alpine/conf/etc/zabbix/web/zabbix.conf.php b/web-apache-pgsql/alpine/conf/etc/zabbix/web/zabbix.conf.php
index 1c20c250b..19e3833ac 100644
--- a/web-apache-pgsql/alpine/conf/etc/zabbix/web/zabbix.conf.php
+++ b/web-apache-pgsql/alpine/conf/etc/zabbix/web/zabbix.conf.php
@@ -2,7 +2,7 @@
 // Zabbix GUI configuration file.
 global $DB, $HISTORY;
 
-$DB['TYPE']     = 'MYSQL';
+$DB['TYPE']     = 'POSTGRESQL';
 $DB['SERVER']   = '{DB_SERVER_HOST}';
 $DB['PORT']     = '{DB_SERVER_PORT}';
 $DB['DATABASE'] = '{DB_SERVER_DBNAME}';
diff --git a/web-apache-pgsql/alpine/docker-entrypoint.sh b/web-apache-pgsql/alpine/docker-entrypoint.sh
index bc758f3eb..0e9333fbf 100755
--- a/web-apache-pgsql/alpine/docker-entrypoint.sh
+++ b/web-apache-pgsql/alpine/docker-entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eo pipefail
+set -o pipefail
 
 set +e
 
@@ -9,37 +9,22 @@ if [ "${DEBUG_MODE}" == "true" ]; then
     set -o xtrace
 fi
 
-# Type of Zabbix component
-# Possible values: [server, proxy, agent, frontend, java-gateway, appliance]
-zbx_type=${ZBX_TYPE}
-# Type of Zabbix database
-# Possible values: [mysql, postgresql]
-zbx_db_type=${ZBX_DB_TYPE}
-# Type of web-server. Valid only with zbx_type = frontend
-# Possible values: [apache, nginx]
-zbx_opt_type=${ZBX_OPT_TYPE}
-
 # Default Zabbix installation name
 # Used only by Zabbix web-interface
-ZBX_SERVER_NAME=${ZBX_SERVER_NAME:-"Zabbix docker"}
+: ${ZBX_SERVER_NAME:="Zabbix docker"}
 # Default Zabbix server host
-ZBX_SERVER_HOST=${ZBX_SERVER_HOST:-"zabbix-server"}
+: ${ZBX_SERVER_HOST:="zabbix-server"}
 # Default Zabbix server port number
-ZBX_SERVER_PORT=${ZBX_SERVER_PORT:-"10051"}
+: ${ZBX_SERVER_PORT:="10051"}
 
 # Default timezone for web interface
-PHP_TZ=${PHP_TZ:-"Europe/Riga"}
-
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${PHP_TZ:="Europe/Riga"}
 
 # Default directories
-# User 'zabbix' home directory
-ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
 # Web interface www-root directory
-ZBX_FRONTEND_PATH="/usr/share/zabbix"
+ZABBIX_WWW_ROOT="/usr/share/zabbix"
 
 # usage: file_env VAR [DEFAULT]
 # as example: file_env 'MYSQL_PASSWORD' 'zabbix'
@@ -72,92 +57,6 @@ file_env() {
     unset "$fileVar"
 }
 
-configure_db_mysql() {
-    [ "${DB_SERVER_HOST}" != "localhost" ] && return
-
-    echo "** Configuring local MySQL server"
-
-    MYSQL_ALLOW_EMPTY_PASSWORD=true
-    MYSQL_DATA_DIR="/var/lib/mysql"
-
-    if [ -f "/etc/mysql/my.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/mysql/my.cnf"
-    elif [ -f "/etc/my.cnf.d/server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/server.cnf"
-        DB_SERVER_SOCKET="/var/lib/mysql/mysql.sock"
-    elif [ -f "/etc/my.cnf.d/mariadb-server.cnf" ]; then
-        MYSQL_CONF_FILE="/etc/my.cnf.d/mariadb-server.cnf"
-        DB_SERVER_SOCKET="/var/run/mysqld/mysqld.sock"
-    else
-        echo "**** Could not found MySQL configuration file"
-        exit 1
-    fi
-
-    if [ -f "/usr/bin/mysqld" ]; then
-        MYSQLD=/usr/bin/mysqld
-    elif [ -f "/usr/sbin/mysqld" ]; then
-        MYSQLD=/usr/sbin/mysqld
-    elif [ -f "/usr/libexec/mysqld" ]; then
-        MYSQLD=/usr/libexec/mysqld
-    else
-        echo "**** Could not found mysqld binary file"
-        exit 1
-    fi
-
-    sed -Ei 's/^(bind-address|log)/#&/' "$MYSQL_CONF_FILE"
-
-    if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
-        [ -d "$MYSQL_DATA_DIR" ] || mkdir -p "$MYSQL_DATA_DIR"
-
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-
-        echo "** Installing initial MySQL database schemas"
-        mysql_install_db --user=mysql --datadir="$MYSQL_DATA_DIR" 2>&1
-    else
-        echo "**** MySQL data directory is not empty. Using already existing installation."
-        chown -R mysql:mysql "$MYSQL_DATA_DIR"
-    fi
-
-    mkdir -p /var/run/mysqld
-    ln -s /var/run/mysqld /run/mysqld
-    chown -R mysql:mysql /var/run/mysqld
-    chown -R mysql:mysql /run/mysqld
-
-    echo "** Starting MySQL server in background mode"
-
-    nohup $MYSQLD --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin \
-            --user=mysql --log-output=none --pid-file=/var/lib/mysql/mysqld.pid \
-            --port=3306 --character-set-server=utf8 --collation-server=utf8_bin &
-}
-
-prepare_system() {
-    local type=$1
-    local web_server=$2
-
-    echo "** Preparing the system"
-
-    if [ "$type" != "appliance" ]; then
-        return
-    fi
-
-    ZBX_ADD_AGENT=${ZBX_ADD_AGENT:-"false"}
-    ZBX_ADD_JAVA_GATEWAY=${ZBX_ADD_JAVA_GATEWAY:-"false"}
-    ZBX_ADD_SERVER=${ZBX_ADD_SERVER:-"true"}
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_HOST="localhost"
-    [ "${ZBX_ADD_SERVER}" == "true" ] && ZBX_SERVER_PORT="10051"
-    ZBX_MAIN_DB=${ZBX_MAIN_DB:-"mysql"}
-    ZBX_ADD_PROXY=${ZBX_ADD_PROXY:-"false"}
-    ZBX_PROXY_DB=${ZBX_PROXY_DB:-"sqlite3"}
-    ZBX_ADD_WEB=${ZBX_ADD_WEB:-"true"}
-    ZBX_WEB_SERVER=${ZBX_WEB_SERVER:-"nginx"}
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"localhost"}
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY_ENABLE="true"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAY="localhost"
-    [ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && ZBX_JAVAGATEWAYPORT="10052"
-
-    [ "${ZBX_ADD_SERVER}" == "true" ] && configure_db_${ZBX_MAIN_DB}
-}
-
 escape_spec_char() {
     local var_value=$1
 
@@ -239,62 +138,14 @@ update_config_multiple_var() {
     done
 }
 
-# Check prerequisites for MySQL database
-check_variables_mysql() {
-    local type=$1
-
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"mysql-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"3306"}
-    USE_DB_ROOT_USER=false
-    CREATE_ZBX_DB_USER=false
-    file_env MYSQL_USER
-    file_env MYSQL_PASSWORD
-
-    if [ "$type" != "" ]; then
-        file_env MYSQL_ROOT_PASSWORD
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
-        echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
-        exit 1
-    fi
-
-    if [ ! -n "${MYSQL_USER}" ] && [ ! -n "${MYSQL_ROOT_PASSWORD}" ] && [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" != "true" ]; then
-        echo "*** Impossible to use MySQL server because 'root' password is not defined and it is not empty"
-        exit 1
-    fi
-
-    if [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || [ -n "${MYSQL_ROOT_PASSWORD}" ]; then
-        USE_DB_ROOT_USER=true
-        DB_SERVER_ROOT_USER="root"
-        DB_SERVER_ROOT_PASS=${MYSQL_ROOT_PASSWORD:-""}
-    fi
-
-    [ -n "${MYSQL_USER}" ] && CREATE_ZBX_DB_USER=true
-
-    # If root password is not specified use provided credentials
-    DB_SERVER_ROOT_USER=${DB_SERVER_ROOT_USER:-${MYSQL_USER}}
-    [ "${MYSQL_ALLOW_EMPTY_PASSWORD}" == "true" ] || DB_SERVER_ROOT_PASS=${DB_SERVER_ROOT_PASS:-${MYSQL_PASSWORD}}
-    DB_SERVER_ZBX_USER=${MYSQL_USER:-"zabbix"}
-    DB_SERVER_ZBX_PASS=${MYSQL_PASSWORD:-"zabbix"}
-
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
-    fi
-}
-
 # Check prerequisites for PostgreSQL database
 check_variables_postgresql() {
-    local type=$1
-
     file_env POSTGRES_USER
     file_env POSTGRES_PASSWORD
 
-    DB_SERVER_HOST=${DB_SERVER_HOST:-"postgres-server"}
-    DB_SERVER_PORT=${DB_SERVER_PORT:-"5432"}
-    CREATE_ZBX_DB_USER=${CREATE_ZBX_DB_USER:-"false"}
+    : ${DB_SERVER_HOST:="postgres-server"}
+    : ${DB_SERVER_PORT:="5432"}
+    : ${CREATE_ZBX_DB_USER:="false"}
 
     DB_SERVER_ROOT_USER=${POSTGRES_USER:-"postgres"}
     DB_SERVER_ROOT_PASS=${POSTGRES_PASSWORD:-""}
@@ -302,35 +153,9 @@ check_variables_postgresql() {
     DB_SERVER_ZBX_USER=${POSTGRES_USER:-"zabbix"}
     DB_SERVER_ZBX_PASS=${POSTGRES_PASSWORD:-"zabbix"}
 
-    DB_SERVER_SCHEMA=${DB_SERVER_SCHEMA:-"public"}
+    : ${DB_SERVER_SCHEMA:="public"}
 
-    if [ "$type" == "proxy" ]; then
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix_proxy"}
-    else
-        DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
-    fi
-}
-
-check_db_connect_mysql() {
-    echo "********************"
-    echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
-    echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
-    echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
-    if [ "${USE_DB_ROOT_USER}" == "true" ]; then
-        echo "* DB_SERVER_ROOT_USER: ${DB_SERVER_ROOT_USER}"
-        echo "* DB_SERVER_ROOT_PASS: ${DB_SERVER_ROOT_PASS}"
-    fi
-    echo "* DB_SERVER_ZBX_USER: ${DB_SERVER_ZBX_USER}"
-    echo "* DB_SERVER_ZBX_PASS: ${DB_SERVER_ZBX_PASS}"
-    echo "********************"
-
-    WAIT_TIMEOUT=5
-
-    while [ ! "$(mysqladmin ping -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} -u ${DB_SERVER_ROOT_USER} \
-                --password="${DB_SERVER_ROOT_PASS}" --silent --connect_timeout=10)" ]; do
-        echo "**** MySQL server is not available. Waiting $WAIT_TIMEOUT seconds..."
-        sleep $WAIT_TIMEOUT
-    done
+    DB_SERVER_DBNAME=${POSTGRES_DB:-"zabbix"}
 }
 
 check_db_connect_postgresql() {
@@ -370,17 +195,6 @@ check_db_connect_postgresql() {
     unset PGOPTIONS
 }
 
-
-mysql_query() {
-    query=$1
-    local result=""
-
-    result=$(mysql --silent --skip-column-names -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-             -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}" -e "$query")
-
-    echo $result
-}
-
 psql_query() {
     query=$1
     db=$2
@@ -405,530 +219,43 @@ psql_query() {
     echo $result
 }
 
-create_db_user_mysql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in MySQL database"
-
-    USER_EXISTS=$(mysql_query "SELECT 1 FROM mysql.user WHERE user = '${DB_SERVER_ZBX_USER}' AND host = '%'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        mysql_query "CREATE USER '${DB_SERVER_ZBX_USER}'@'%' IDENTIFIED BY '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        mysql_query "ALTER USER ${DB_SERVER_ZBX_USER} IDENTIFIED BY '${DB_SERVER_ZBX_PASS}';" 1>/dev/null
-    fi
-
-    mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-}
-
-create_db_user_postgresql() {
-    [ "${CREATE_ZBX_DB_USER}" == "true" ] || return
-
-    echo "** Creating '${DB_SERVER_ZBX_USER}' user in PostgreSQL database"
-
-    USER_EXISTS=$(psql_query "SELECT 1 FROM pg_roles WHERE rolname='${DB_SERVER_ZBX_USER}'")
-
-    if [ -z "$USER_EXISTS" ]; then
-        psql_query "CREATE USER ${DB_SERVER_ZBX_USER} WITH PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    else
-        psql_query "ALTER USER ${DB_SERVER_ZBX_USER} WITH ENCRYPTED PASSWORD '${DB_SERVER_ZBX_PASS}'" 1>/dev/null
-    fi
-}
-
-create_db_database_mysql() {
-    DB_EXISTS=$(mysql_query "SELECT SCHEMA_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        mysql_query "CREATE DATABASE ${DB_SERVER_DBNAME} CHARACTER SET utf8 COLLATE utf8_bin" 1>/dev/null
-        # better solution?
-        mysql_query "GRANT ALL PRIVILEGES ON $DB_SERVER_DBNAME. * TO '${DB_SERVER_ZBX_USER}'@'%'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
-    fi
-}
-
-create_db_database_postgresql() {
-    DB_EXISTS=$(psql_query "SELECT 1 AS result FROM pg_database WHERE datname='${DB_SERVER_DBNAME}'")
-
-    if [ -z ${DB_EXISTS} ]; then
-        echo "** Database '${DB_SERVER_DBNAME}' does not exist. Creating..."
-        psql_query "CREATE DATABASE ${DB_SERVER_DBNAME} WITH OWNER ${DB_SERVER_ZBX_USER} ENCODING='UTF8' LC_CTYPE='en_US.utf8' LC_COLLATE='en_US.utf8'" 1>/dev/null
-    else
-        echo "** Database '${DB_SERVER_DBNAME}' already exists. Please be careful with database owner!"
-    fi
-
-    psql_query "CREATE SCHEMA IF NOT EXISTS ${DB_SERVER_SCHEMA}"
-}
-
-create_db_schema_mysql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(mysql_query "SELECT 1 FROM information_schema.tables WHERE table_schema='${DB_SERVER_DBNAME}' and table_name = 'dbversion'")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(mysql_query "SELECT mandatory FROM ${DB_SERVER_DBNAME}.dbversion")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in MySQL"
-
-        zcat /usr/share/doc/zabbix-$type-mysql/create.sql.gz | mysql --silent --skip-column-names \
-                    -h ${DB_SERVER_HOST} -P ${DB_SERVER_PORT} \
-                    -u ${DB_SERVER_ROOT_USER} --password="${DB_SERVER_ROOT_PASS}"  \
-                    ${DB_SERVER_DBNAME} 1>/dev/null
-    fi
-}
-
-create_db_schema_postgresql() {
-    local type=$1
-
-    DBVERSION_TABLE_EXISTS=$(psql_query "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = 
-                                         c.relnamespace WHERE  n.nspname = '$DB_SERVER_SCHEMA' AND c.relname = 'dbversion'" "${DB_SERVER_DBNAME}")
-
-    if [ -n "${DBVERSION_TABLE_EXISTS}" ]; then
-        echo "** Table '${DB_SERVER_DBNAME}.dbversion' already exists."
-        ZBX_DB_VERSION=$(psql_query "SELECT mandatory FROM ${DB_SERVER_SCHEMA}.dbversion" "${DB_SERVER_DBNAME}")
-    fi
-
-    if [ -z "${ZBX_DB_VERSION}" ]; then
-        echo "** Creating '${DB_SERVER_DBNAME}' schema in PostgreSQL"
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            psql_query "CREATE EXTENSION IF NOT EXISTS timescaledb CASCADE;"
-        fi
-
-        if [ -n "${DB_SERVER_ZBX_PASS}" ]; then
-            export PGPASSWORD="${DB_SERVER_ZBX_PASS}"
-        fi
-
-        if [ -n "${DB_SERVER_SCHEMA}" ]; then
-            PGOPTIONS="--search_path=${DB_SERVER_SCHEMA}"
-            export PGOPTIONS
-        fi
-
-        zcat /usr/share/doc/zabbix-$type-postgresql/create.sql.gz | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-
-        if [ "${ENABLE_TIMESCALEDB}" == "true" ]; then
-            cat /usr/share/doc/zabbix-$type-postgresql/timescaledb.sql | psql -q \
-                -h ${DB_SERVER_HOST} -p ${DB_SERVER_PORT} \
-                -U ${DB_SERVER_ZBX_USER} ${DB_SERVER_DBNAME} 1>/dev/null
-        fi
-
-        unset PGPASSWORD
-        unset PGOPTIONS
-    fi
-}
-
 prepare_web_server_apache() {
-    if [ -d "/etc/apache2/sites-available" ]; then
-        APACHE_SITES_DIR=/etc/apache2/sites-available
-    elif [ -d "/etc/apache2/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/apache2/conf.d
-    elif [ -d "/etc/httpd/conf.d" ]; then
-        APACHE_SITES_DIR=/etc/httpd/conf.d
-    else
-        echo "**** Apache is not available"
-        exit 1
-    fi
-
-    if [ -f "/usr/sbin/a2dissite" ]; then
-        echo "** Disable default site"
-        /usr/sbin/a2dissite 000-default 1>/dev/null
-        rm -rf "$APACHE_SITES_DIR/*"
-    elif [ -f "/etc/apache2/conf.d/default.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/apache2/conf.d/default.conf"
-    elif [ -f "/etc/httpd/conf.d/welcome.conf" ]; then
-        echo "** Disable default site"
-        rm -f "/etc/httpd/conf.d/welcome.conf"
-        rm -f "/etc/httpd/conf.d/ssl.conf"
-    fi
+    APACHE_SITES_DIR=/etc/apache2/conf.d
 
     echo "** Adding Zabbix virtual host (HTTP)"
     if [ -f "$ZABBIX_ETC_DIR/apache.conf" ]; then
         ln -s "$ZABBIX_ETC_DIR/apache.conf" "$APACHE_SITES_DIR/zabbix.conf"
-        if [ -f "/usr/sbin/a2dissite" ]; then
-            /usr/sbin/a2ensite zabbix.conf 1>/dev/null
-        fi
     else
         echo "**** Impossible to enable HTTP virtual host"
     fi
 
-    if [ -f "/etc/apache2/conf.d/ssl.conf" ]; then
-        rm -f "/etc/apache2/conf.d/ssl.conf"
-    fi
-
     if [ -f "/etc/ssl/apache2/ssl.crt" ] && [ -f "/etc/ssl/apache2/ssl.key" ]; then
-        echo "** Enable SSL support for Apache2"
-        if [ -f "/usr/sbin/a2enmod" ]; then
-            /usr/sbin/a2enmod ssl 1>/dev/null
-        fi
-
         echo "** Adding Zabbix virtual host (HTTPS)"
         if [ -f "$ZABBIX_ETC_DIR/apache_ssl.conf" ]; then
             ln -s "$ZABBIX_ETC_DIR/apache_ssl.conf" "$APACHE_SITES_DIR/zabbix_ssl.conf"
-            if [ -f "/usr/sbin/a2dissite" ]; then
-                /usr/sbin/a2ensite zabbix_ssl.conf 1>/dev/null
-            fi
         else
             echo "**** Impossible to enable HTTPS virtual host"
         fi
     else
         echo "**** Impossible to enable SSL support for Apache2. Certificates are missed."
     fi
-
-    # Change Apache2 logging to stdout and stderr
-    if [ -f "/etc/apache2/apache2.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/apache2.conf"
-    fi
-
-    if [ -f "/etc/httpd/conf/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/httpd/conf/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/httpd.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/httpd.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf-available/other-vhosts-access-log.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
-            -e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
-            "/etc/apache2/conf-available/other-vhosts-access-log.conf"
-    fi
-
-    if [ -f "/etc/apache2/conf.d/mpm.conf" ]; then
-        sed -ri \
-            -e 's!^(\s*PidFile)\s+\S+!\1 "/var/run/httpd.pid"!g' \
-            "/etc/apache2/conf.d/mpm.conf"
-    fi
-
-    if [ -f "/var/run/apache2/apache2.pid" ]; then
-        rm -f "/var/run/apache2/apache2.pid"
-    fi
-
-    if [ -f "/var/run/httpd/httpd.pid" ]; then
-        rm -f "/var/run/httpd/httpd.pid"
-    fi
 }
 
-prepare_web_server_nginx() {
-    NGINX_CONFD_DIR="/etc/nginx/conf.d"
-    NGINX_SSL_CONFIG="/etc/ssl/nginx"
-    PHP_SESSIONS_DIR="/var/lib/php5"
-
-    echo "** Disable default vhosts"
-    rm -f $NGINX_CONFD_DIR/*.conf
-
-    echo "** Adding Zabbix virtual host (HTTP)"
-    if [ -f "$ZABBIX_ETC_DIR/nginx.conf" ]; then
-        ln -s "$ZABBIX_ETC_DIR/nginx.conf" "$NGINX_CONFD_DIR"
-    else
-        echo "**** Impossible to enable HTTP virtual host"
-    fi
-
-    if [ -f "$NGINX_SSL_CONFIG/ssl.crt" ] && [ -f "$NGINX_SSL_CONFIG/ssl.key" ] && [ -f "$NGINX_SSL_CONFIG/dhparam.pem" ]; then
-        echo "** Enable SSL support for Nginx"
-        if [ -f "$ZABBIX_ETC_DIR/nginx_ssl.conf" ]; then
-            ln -s "$ZABBIX_ETC_DIR/nginx_ssl.conf" "$NGINX_CONFD_DIR"
-        else
-            echo "**** Impossible to enable HTTPS virtual host"
-        fi
-    else
-        echo "**** Impossible to enable SSL support for Nginx. Certificates are missed."
-    fi
-
-    if [ -d "/var/log/nginx/" ]; then
-        ln -sf /dev/fd/2 /var/log/nginx/error.log
-    fi
-
-    ln -sf /dev/fd/2 /var/log/php5-fpm.log
-    ln -sf /dev/fd/2 /var/log/php7.2-fpm.log
-}
-
-stop_databases() {
-    if ([ "${ZBX_MAIN_DB}" == "mysql" ] || [ "${ZBX_PROXY_DB}" == "mysql" ]) && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        mysql_query "DELETE FROM mysql.user WHERE host = 'localhost' AND user != 'root'" 1>/dev/null
-
-        if [ -f "/var/lib/mysql/mysqld.pid" ]; then
-            kill -TERM $(cat /var/lib/mysql/mysqld.pid)
-        elif [ -f "/var/run/mysqld/mysqld.pid" ]; then
-            kill -TERM $(cat /var/run/mysqld/mysqld.pid)
-        fi
-    fi
-
-    if [ "${ZBX_MAIN_DB}" == "postgresql" ] && [ "${DB_SERVER_HOST}" == "localhost" ]; then
-        if [ "${OS_CODENAME}" == "alpine" ]; then
-            PGDATA=/var/lib/postgresql
-            BINDIR=/usr/bin
-        else
-            PGDATA=/var/lib/postgresql/9.3/main
-            BINDIR=/usr/lib/postgresql/9.3/bin
-        fi
-        su -c "$BINDIR/pg_ctl -D \"$PGDATA\" -m fast -w stop --silent" postgres 1>/dev/null 2>/dev/null
-    fi
-}
-
-clear_deploy() {
-    local type=$1
-    echo "** Cleaning the system"
-
-    [ "$type" != "appliance" ] && return
-
-    stop_databases
-}
-
-update_zbx_config() {
-    local type=$1
-    local db_type=$2
-
-    echo "** Preparing Zabbix $type configuration file"
-
-    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_$type.conf
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyMode" "${ZBX_PROXYMODE}"
-        update_config_var $ZBX_CONFIG "Server" "${ZBX_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "ServerPort" "${ZBX_SERVER_PORT}"
-        if [ -z "${ZBX_HOSTNAME}" ] && [ -n "${ZBX_HOSTNAMEITEM}" ]; then
-            update_config_var $ZBX_CONFIG "Hostname" ""
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        else
-            update_config_var $ZBX_CONFIG "Hostname" "${ZBX_HOSTNAME:-"zabbix-proxy-"$db_type}"
-            update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-        fi
-    fi
-
-    if [ $type == "proxy" ] && [ "${ZBX_ADD_SERVER}" = "true" ]; then
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_PROXY_LISTENPORT:-"10061"}"
-    else
-        update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
-    update_config_var $ZBX_CONFIG "LogType" "console"
-    update_config_var $ZBX_CONFIG "LogFile"
-    update_config_var $ZBX_CONFIG "LogFileSize"
-    update_config_var $ZBX_CONFIG "PidFile"
-
-    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-
-    if [ $type == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-        update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-    fi
-
-    if [ "$db_type" == "sqlite3" ]; then
-        update_config_var $ZBX_CONFIG "DBHost"
-        update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/zabbix_proxy_db"
-        update_config_var $ZBX_CONFIG "DBUser"
-        update_config_var $ZBX_CONFIG "DBPort"
-        update_config_var $ZBX_CONFIG "DBPassword"
-    else
-        update_config_var $ZBX_CONFIG "DBHost" "${DB_SERVER_HOST}"
-        update_config_var $ZBX_CONFIG "DBName" "${DB_SERVER_DBNAME}"
-        update_config_var $ZBX_CONFIG "DBSchema" "${DB_SERVER_SCHEMA}"
-        update_config_var $ZBX_CONFIG "DBUser" "${DB_SERVER_ZBX_USER}"
-        update_config_var $ZBX_CONFIG "DBPort" "${DB_SERVER_PORT}"
-        update_config_var $ZBX_CONFIG "DBPassword" "${DB_SERVER_ZBX_PASS}"
-    fi
-
-    if [ $type == "server" ]; then
-        update_config_var $ZBX_CONFIG "HistoryStorageURL" "${ZBX_HISTORYSTORAGEURL}"
-        update_config_var $ZBX_CONFIG "HistoryStorageTypes" "${ZBX_HISTORYSTORAGETYPES}"
-    fi
-
-    update_config_var $ZBX_CONFIG "DBSocket" "${DB_SERVER_SOCKET}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
-        update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
-        update_config_var $ZBX_CONFIG "HeartbeatFrequency" "${ZBX_PROXYHEARTBEATFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ConfigFrequency" "${ZBX_CONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "DataSenderFrequency" "${ZBX_DATASENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StatsAllowedIP" "${ZBX_STATSALLOWEDIP}"
-
-    update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_IPMIPOLLERS}"
-    update_config_var $ZBX_CONFIG "StartPollersUnreachable" "${ZBX_STARTPOLLERSUNREACHABLE}"
-    update_config_var $ZBX_CONFIG "StartTrappers" "${ZBX_STARTTRAPPERS}"
-    update_config_var $ZBX_CONFIG "StartPingers" "${ZBX_STARTPINGERS}"
-    update_config_var $ZBX_CONFIG "StartDiscoverers" "${ZBX_STARTDISCOVERERS}"
-    update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}"
-        update_config_var $ZBX_CONFIG "StartTimers" "${ZBX_STARTTIMERS}"
-        update_config_var $ZBX_CONFIG "StartEscalators" "${ZBX_STARTESCALATORS}"
-        update_config_var $ZBX_CONFIG "StartAlerters" "${ZBX_STARTALERTERS}"
-    fi
-
-    ZBX_JAVAGATEWAY_ENABLE=${ZBX_JAVAGATEWAY_ENABLE:-"false"}
-    if [ "${ZBX_JAVAGATEWAY_ENABLE}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "JavaGateway" "${ZBX_JAVAGATEWAY:-"zabbix-java-gateway"}"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort" "${ZBX_JAVAGATEWAYPORT}"
-        update_config_var $ZBX_CONFIG "StartJavaPollers" "${ZBX_STARTJAVAPOLLERS:-"5"}"
-    else
-        update_config_var $ZBX_CONFIG "JavaGateway"
-        update_config_var $ZBX_CONFIG "JavaGatewayPort"
-        update_config_var $ZBX_CONFIG "StartJavaPollers"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartVMwareCollectors" "${ZBX_STARTVMWARECOLLECTORS}"
-    update_config_var $ZBX_CONFIG "VMwareFrequency" "${ZBX_VMWAREFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwarePerfFrequency" "${ZBX_VMWAREPERFFREQUENCY}"
-    update_config_var $ZBX_CONFIG "VMwareCacheSize" "${ZBX_VMWARECACHESIZE}"
-    update_config_var $ZBX_CONFIG "VMwareTimeout" "${ZBX_VMWARETIMEOUT}"
-
-    ZBX_ENABLE_SNMP_TRAPS=${ZBX_ENABLE_SNMP_TRAPS:-"false"}
-    if [ "${ZBX_ENABLE_SNMP_TRAPS}" == "true" ]; then
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile" "${ZABBIX_USER_HOME_DIR}/snmptraps/snmptraps.log"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper" "1"
-    else
-        update_config_var $ZBX_CONFIG "SNMPTrapperFile"
-        update_config_var $ZBX_CONFIG "StartSNMPTrapper"
-    fi
-
-    update_config_var $ZBX_CONFIG "HousekeepingFrequency" "${ZBX_HOUSEKEEPINGFREQUENCY}"
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
-        update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
-
-    if [ "$type" == "server" ]; then
-        update_config_var $ZBX_CONFIG "CacheUpdateFrequency" "${ZBX_CACHEUPDATEFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "StartDBSyncers" "${ZBX_STARTDBSYNCERS}"
-    update_config_var $ZBX_CONFIG "HistoryCacheSize" "${ZBX_HISTORYCACHESIZE}"
-    update_config_var $ZBX_CONFIG "HistoryIndexCacheSize" "${ZBX_HISTORYINDEXCACHESIZE}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "TrendCacheSize" "${ZBX_TRENDCACHESIZE}"
-        update_config_var $ZBX_CONFIG "ValueCacheSize" "${ZBX_VALUECACHESIZE}"
-    fi
-
-    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERIMEOUT}"
-    update_config_var $ZBX_CONFIG "UnreachablePeriod" "${ZBX_UNREACHABLEPERIOD}"
-    update_config_var $ZBX_CONFIG "UnavailableDelay" "${ZBX_UNAVAILABLEDELAY}"
-    update_config_var $ZBX_CONFIG "UnreachableDelay" "${ZBX_UNREACHABLEDELAY}"
-
-    update_config_var $ZBX_CONFIG "AlertScriptsPath" "/usr/lib/zabbix/alertscripts"
-    update_config_var $ZBX_CONFIG "ExternalScripts" "/usr/lib/zabbix/externalscripts"
-
-    # Possible few fping locations
-    if [ -f "/usr/bin/fping" ]; then
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/bin/fping"
-    else
-        update_config_var $ZBX_CONFIG "FpingLocation" "/usr/sbin/fping"
-    fi
-    if [ -f "/usr/bin/fping6" ]; then
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/bin/fping6"
-    else
-        update_config_var $ZBX_CONFIG "Fping6Location" "/usr/sbin/fping6"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
-    update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
-
-    if [ "$type" == "server" ]; then 
-        update_config_var $ZBX_CONFIG "StartProxyPollers" "${ZBX_STARTPROXYPOLLERS}"
-        update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
-        update_config_var $ZBX_CONFIG "ProxyDataFrequency" "${ZBX_PROXYDATAFREQUENCY}"
-    fi
-
-    update_config_var $ZBX_CONFIG "SSLCertLocation" "$ZABBIX_USER_HOME_DIR/ssl/certs/"
-    update_config_var $ZBX_CONFIG "SSLKeyLocation" "$ZABBIX_USER_HOME_DIR/ssl/keys/"
-    update_config_var $ZBX_CONFIG "SSLCALocation" "$ZABBIX_USER_HOME_DIR/ssl/ssl_ca/"
-    update_config_var $ZBX_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-        update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    fi
-    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-        update_config_var $ZBX_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    fi
-
-    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-
-    if [ "$type" == "proxy" ]; then
-        update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-        update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-    fi
-}
-
-
 prepare_zbx_web_config() {
-    local db_type=$1
     local server_name=""
 
     echo "** Preparing Zabbix frontend configuration file"
 
     ZBX_WWW_ROOT="/usr/share/zabbix"
     ZBX_WEB_CONFIG="$ZABBIX_ETC_DIR/web/zabbix.conf.php"
+    PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
 
-    if [ -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php" ]; then
-        rm -f "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-    fi
-
-    ln -s "$ZBX_WEB_CONFIG" "$ZBX_WWW_ROOT/conf/zabbix.conf.php"
-
-    # Different places of PHP configuration file
-    if [ -f "/etc/php5/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php5/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php5/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/apache2/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.0/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.0/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php.d/99-zabbix.ini"
-    elif [ -f "/etc/php7/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php7/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/fpm/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/fpm/conf.d/99-zabbix.ini"
-    elif [ -f "/etc/php/7.2/apache2/conf.d/99-zabbix.ini" ]; then
-        PHP_CONFIG_FILE="/etc/php/7.2/apache2/conf.d/99-zabbix.ini"
-    fi
-
-    if [ -n "$PHP_CONFIG_FILE" ]; then
-        update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
-        update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
-        update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
-        update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
-        update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
-        update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
-    else
-        echo "**** Zabbix related PHP configuration file not found"
-    fi
+    update_config_var "$PHP_CONFIG_FILE" "max_execution_time" "${ZBX_MAXEXECUTIONTIME:-"600"}"
+    update_config_var "$PHP_CONFIG_FILE" "memory_limit" "${ZBX_MEMORYLIMIT:-"128M"}" 
+    update_config_var "$PHP_CONFIG_FILE" "post_max_size" "${ZBX_POSTMAXSIZE:-"16M"}"
+    update_config_var "$PHP_CONFIG_FILE" "upload_max_filesize" "${ZBX_UPLOADMAXFILESIZE:-"2M"}"
+    update_config_var "$PHP_CONFIG_FILE" "max_input_time" "${ZBX_MAXINPUTTIME:-"300"}"
+    update_config_var "$PHP_CONFIG_FILE" "date.timezone" "${PHP_TZ}"
 
     ZBX_HISTORYSTORAGETYPES=${ZBX_HISTORYSTORAGETYPES:-"[]"}
 
@@ -953,227 +280,24 @@ prepare_zbx_web_config() {
         -e "s/{ZBX_HISTORYSTORAGETYPES}/$history_storage_types/g" \
     "$ZBX_WEB_CONFIG"
 
-    [ "$db_type" = "postgresql" ] && sed -i "s/MYSQL/POSTGRESQL/g" "$ZBX_WEB_CONFIG"
-
     [ -n "${ZBX_SESSION_NAME}" ] && sed -i "/ZBX_SESSION_NAME/s/'[^']*'/'${ZBX_SESSION_NAME}'/2" "$ZBX_WWW_ROOT/include/defines.inc.php"
 }
 
-prepare_zbx_agent_config() {
-    echo "** Preparing Zabbix agent configuration file"
-
-    ZBX_AGENT_CONFIG=$ZABBIX_ETC_DIR/zabbix_agentd.conf
-
-    ZBX_PASSIVESERVERS=${ZBX_PASSIVESERVERS:-""}
-    ZBX_ACTIVESERVERS=${ZBX_ACTIVESERVERS:-""}
-
-    [ -n "$ZBX_PASSIVESERVERS" ] && ZBX_PASSIVESERVERS=","$ZBX_PASSIVESERVERS
-
-    ZBX_PASSIVESERVERS=$ZBX_SERVER_HOST$ZBX_PASSIVESERVERS
-
-    [ -n "$ZBX_ACTIVESERVERS" ] && ZBX_ACTIVESERVERS=","$ZBX_ACTIVESERVERS
-
-    ZBX_ACTIVESERVERS=$ZBX_SERVER_HOST":"$ZBX_SERVER_PORT$ZBX_ACTIVESERVERS
-
-    update_config_var $ZBX_AGENT_CONFIG "PidFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogType" "console"
-    update_config_var $ZBX_AGENT_CONFIG "LogFile"
-    update_config_var $ZBX_AGENT_CONFIG "LogFileSize"
-    update_config_var $ZBX_AGENT_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
-    update_config_var $ZBX_AGENT_CONFIG "SourceIP"
-    update_config_var $ZBX_AGENT_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}"
-    update_config_var $ZBX_AGENT_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}"
-
-    ZBX_PASSIVE_ALLOW=${ZBX_PASSIVE_ALLOW:-"true"}
-    if [ "$ZBX_PASSIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_PASSIVESERVERS' servers for passive checks"
-        update_config_var $ZBX_AGENT_CONFIG "Server" "${ZBX_PASSIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "Server"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
-    update_config_var $ZBX_AGENT_CONFIG "ListenIP" "${ZBX_LISTENIP}"
-    update_config_var $ZBX_AGENT_CONFIG "StartAgents" "${ZBX_STARTAGENTS}"
-
-    ZBX_ACTIVE_ALLOW=${ZBX_ACTIVE_ALLOW:-"true"}
-    if [ "$ZBX_ACTIVE_ALLOW" == "true" ]; then
-        echo "** Using '$ZBX_ACTIVESERVERS' servers for active checks"
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive" "${ZBX_ACTIVESERVERS}"
-    else
-        update_config_var $ZBX_AGENT_CONFIG "ServerActive"
-    fi
-
-    update_config_var $ZBX_AGENT_CONFIG "Hostname" "${ZBX_HOSTNAME}"
-    update_config_var $ZBX_AGENT_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadata" "${ZBX_METADATA}"
-    update_config_var $ZBX_AGENT_CONFIG "HostMetadataItem" "${ZBX_METADATAITEM}"
-    update_config_var $ZBX_AGENT_CONFIG "RefreshActiveChecks" "${ZBX_REFRESHACTIVECHECKS}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSend" "${ZBX_BUFFERSEND}"
-    update_config_var $ZBX_AGENT_CONFIG "BufferSize" "${ZBX_BUFFERSIZE}"
-    update_config_var $ZBX_AGENT_CONFIG "MaxLinesPerSecond" "${ZBX_MAXLINESPERSECOND}"
-    # Please use include to enable Alias feature
-#    update_config_multiple_var $ZBX_AGENT_CONFIG "Alias" ${ZBX_ALIAS}
-    update_config_var $ZBX_AGENT_CONFIG "Timeout" "${ZBX_TIMEOUT}"
-    update_config_var $ZBX_AGENT_CONFIG "Include" "/etc/zabbix/zabbix_agentd.d/"
-    update_config_var $ZBX_AGENT_CONFIG "UnsafeUserParameters" "${ZBX_UNSAFEUSERPARAMETERS}"
-    update_config_var $ZBX_AGENT_CONFIG "LoadModulePath" "$ZABBIX_USER_HOME_DIR/modules/"
-    update_config_multiple_var $ZBX_AGENT_CONFIG "LoadModule" "${ZBX_LOADMODULE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSConnect" "${ZBX_TLSCONNECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertIssuer" "${ZBX_TLSSERVERCERTISSUER}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSServerCertSubject" "${ZBX_TLSSERVERCERTSUBJECT}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}"
-    update_config_var $ZBX_AGENT_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}"
-}
-
-prepare_java_gateway_config() {
-    echo "** Preparing Zabbix Java Gateway log configuration file"
-
-    ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml
-
-    if [ -n "${ZBX_DEBUGLEVEL}" ]; then
-        echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated"
-        if [ -f "$ZBX_GATEWAY_CONFIG" ]; then
-            sed -i -e "/^.*<root level=/s/=.*/=\"${ZBX_DEBUGLEVEL}\">/" "$ZBX_GATEWAY_CONFIG"
-        else
-            echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found"
-        fi
-    fi
-}
-
-prepare_agent() {
-    echo "** Preparing Zabbix agent"
-    prepare_zbx_agent_config
-}
-
-prepare_server() {
-    local db_type=$1
-
-    echo "** Preparing Zabbix server"
-
-    check_variables_$db_type "server"
-    check_db_connect_$db_type
-    create_db_user_$db_type
-    create_db_database_$db_type
-    create_db_schema_$db_type "server"
-
-    update_zbx_config "server" "$db_type"
-}
-
-prepare_proxy() {
-    local db_type=$1
-
-    echo "Preparing Zabbix proxy"
-
-    if [ "$db_type" != "sqlite3" ]; then
-        check_variables_$db_type "proxy"
-        check_db_connect_$db_type
-        create_db_user_$db_type
-        create_db_database_$db_type
-        create_db_schema_$db_type "proxy"
-    fi
-
-    update_zbx_config "proxy" $db_type
-}
-
 prepare_web() {
-    local web_server=$1
-    local db_type=$2
-
     echo "** Preparing Zabbix web-interface"
 
-    check_variables_$db_type
-    check_db_connect_$db_type
-    prepare_web_server_$web_server
-    prepare_zbx_web_config $db_type
-}
-
-prepare_java_gateway() {
-    echo "** Preparing Zabbix Java Gateway"
-
-    prepare_java_gateway_config
+    check_variables_postgresql
+    check_db_connect_postgresql
+    prepare_web_server_apache
+    prepare_zbx_web_config
 }
 
 #################################################
 
-if [ ! -n "$zbx_type" ]; then
-    echo "**** Type of Zabbix component is not specified"
-    exit 1
-elif [ "$zbx_type" == "dev" ]; then
-    echo "** Deploying Zabbix installation from SVN"
-else
-    if [ ! -n "$zbx_db_type" ]; then
-        echo "**** Database type of Zabbix $zbx_type is not specified"
-        exit 1
-    fi
-
-    if [ "$zbx_db_type" != "none" ]; then
-        if [ "$zbx_opt_type" != "none" ]; then
-            echo "** Deploying Zabbix $zbx_type ($zbx_opt_type) with $zbx_db_type database"
-        else
-            echo "** Deploying Zabbix $zbx_type with $zbx_db_type database"
-        fi
-    else
-        echo "** Deploying Zabbix $zbx_type"
-    fi
+if [ "$1" == '/usr/sbin/httpd' ]; then
+    prepare_web
 fi
 
-prepare_system "$zbx_type" "$zbx_opt_type"
-
-[ "$zbx_type" == "server" ] && prepare_server $zbx_db_type
-[ "${ZBX_ADD_SERVER}" == "true" ] && prepare_server ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "proxy" ] && prepare_proxy $zbx_db_type
-[ "${ZBX_ADD_PROXY}" == "true" ] && prepare_proxy ${ZBX_PROXY_DB}
-
-[ "$zbx_type" == "frontend" ] && prepare_web $zbx_opt_type $zbx_db_type
-[ "${ZBX_ADD_WEB}" == "true" ] && prepare_web ${ZBX_WEB_SERVER} ${ZBX_MAIN_DB}
-
-[ "$zbx_type" == "agent" ] && prepare_agent
-[ "${ZBX_ADD_AGENT}" == "true" ] && prepare_agent
-
-[ "$zbx_type" == "java-gateway" ] && prepare_java_gateway
-[ "${ZBX_ADD_JAVA_GATEWAY}" == "true" ] && prepare_java_gateway
-
-clear_deploy "$zbx_type"
-
-echo "########################################################"
-
-if [ "$1" != "" ]; then
-    echo "** Executing '$@'"
-    exec "$@"
-elif [ "$zbx_type" == "agent" ]; then
-    echo "** Starting Zabbix agent"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_agentd --foreground -c /etc/zabbix/zabbix_agentd.conf"
-elif [ "$zbx_type" == "proxy" ]; then
-    echo "** Starting Zabbix proxy"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_proxy --foreground -c /etc/zabbix/zabbix_proxy.conf"
-elif [ "$zbx_type" == "server" ]; then
-    echo "** Starting Zabbix server"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_server --foreground -c /etc/zabbix/zabbix_server.conf"
-elif [ "$zbx_type" == "java-gateway" ]; then
-    echo "** Starting Zabbix Java Gateway"
-    exec su zabbix -s "/bin/bash" -c "/usr/sbin/zabbix_java_gateway"
-elif [ "$zbx_type" == "frontend" ] && [ "$zbx_opt_type" == "apache" ]; then
-    echo "** Starting Zabbix frontend"
-    if [ -f "/usr/sbin/httpd" ]; then
-        exec /usr/sbin/httpd -D FOREGROUND
-    elif [ -f "/usr/sbin/apache2ctl" ]; then
-        exec /bin/bash -c "source /etc/apache2/envvars && /usr/sbin/apache2ctl -D FOREGROUND"
-    else
-        echo "Unknown Web-server. Exiting..."
-        exit 1
-    fi
-elif [ -f "/usr/bin/supervisord" ]; then
-    echo "** Executing supervisord"
-    exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
-else
-    echo "Unknown instructions. Exiting..."
-    exit 1
-fi
+exec "$@"
 
 #################################################
diff --git a/web-nginx-mysql/alpine/Dockerfile b/web-nginx-mysql/alpine/Dockerfile
index 1e167472d..68c4964da 100644
--- a/web-nginx-mysql/alpine/Dockerfile
+++ b/web-nginx-mysql/alpine/Dockerfile
@@ -50,6 +50,7 @@ RUN set -eux && \
             php7-session \
             php7-simplexml \
             php7-sockets \
+            php7-fileinfo \
             php7-xmlreader \
             php7-xmlwriter \
             supervisor && \
diff --git a/web-nginx-pgsql/alpine/Dockerfile b/web-nginx-pgsql/alpine/Dockerfile
index eb5f61433..cb2c23bd7 100644
--- a/web-nginx-pgsql/alpine/Dockerfile
+++ b/web-nginx-pgsql/alpine/Dockerfile
@@ -48,6 +48,7 @@ RUN set -eux && \
             php7-session \
             php7-simplexml \
             php7-sockets \
+            php7-fileinfo \
             php7-xmlreader \
             php7-xmlwriter \
             postgresql-client \
diff --git a/zabbix-appliance/alpine/Dockerfile b/zabbix-appliance/alpine/Dockerfile
index c514c7cf5..55293b915 100644
--- a/zabbix-appliance/alpine/Dockerfile
+++ b/zabbix-appliance/alpine/Dockerfile
@@ -74,6 +74,7 @@ RUN set -eux && \
             php7-session \
             php7-simplexml \
             php7-sockets \
+            php7-fileinfo \
             php7-xmlreader \
             php7-xmlwriter \
             supervisor \