mirror of
https://github.com/zabbix/zabbix-docker.git
synced 2024-11-24 16:54:13 +01:00
388 lines
14 KiB
Bash
Executable File
388 lines
14 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
set -o pipefail
|
|
|
|
set +e
|
|
|
|
# Script trace mode
|
|
if [ "${DEBUG_MODE}" == "true" ]; then
|
|
set -o xtrace
|
|
fi
|
|
|
|
# Default directories
|
|
# User 'zabbix' home directory
|
|
ZABBIX_USER_HOME_DIR="/var/lib/zabbix"
|
|
# Configuration files directory
|
|
ZABBIX_ETC_DIR="/etc/zabbix"
|
|
|
|
# usage: file_env VAR [DEFAULT]
|
|
# as example: file_env 'MYSQL_PASSWORD' 'zabbix'
|
|
# (will allow for "$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"
|
|
}
|
|
|
|
escape_spec_char() {
|
|
local var_value=$1
|
|
|
|
var_value="${var_value//\\/\\\\}"
|
|
var_value="${var_value//[$'\n']/}"
|
|
var_value="${var_value//\//\\/}"
|
|
var_value="${var_value//./\\.}"
|
|
var_value="${var_value//\*/\\*}"
|
|
var_value="${var_value//^/\\^}"
|
|
var_value="${var_value//\$/\\\$}"
|
|
var_value="${var_value//\&/\\\&}"
|
|
var_value="${var_value//\[/\\[}"
|
|
var_value="${var_value//\]/\\]}"
|
|
|
|
echo "$var_value"
|
|
}
|
|
|
|
update_config_var() {
|
|
local config_path=$1
|
|
local var_name=$2
|
|
local var_value=$3
|
|
local is_multiple=$4
|
|
|
|
if [ ! -f "$config_path" ]; then
|
|
echo "**** Configuration file '$config_path' does not exist"
|
|
return
|
|
fi
|
|
|
|
echo -n "** Updating '$config_path' parameter \"$var_name\": '$var_value'... "
|
|
|
|
# Remove configuration parameter definition in case of unset parameter value
|
|
if [ -z "$var_value" ]; then
|
|
sed -i -e "/^$var_name=/d" "$config_path"
|
|
echo "removed"
|
|
return
|
|
fi
|
|
|
|
# Remove value from configuration parameter in case of double quoted parameter value
|
|
if [ "$var_value" == '""' ]; then
|
|
sed -i -e "/^$var_name=/s/=.*/=/" "$config_path"
|
|
echo "undefined"
|
|
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")
|
|
|
|
if [ "$(grep -E "^$var_name=" $config_path)" ] && [ "$is_multiple" != "true" ]; then
|
|
sed -i -e "/^$var_name=/s/=.*/=$var_value/" "$config_path"
|
|
echo "updated"
|
|
elif [ "$(grep -Ec "^# $var_name=" $config_path)" -gt 1 ]; then
|
|
sed -i -e "/^[#;] $var_name=$/i\\$var_name=$var_value" "$config_path"
|
|
echo "added first occurrence"
|
|
else
|
|
sed -i -e "/^[#;] $var_name=/s/.*/&\n$var_name=$var_value/" "$config_path"
|
|
echo "added"
|
|
fi
|
|
|
|
}
|
|
|
|
update_config_multiple_var() {
|
|
local config_path=$1
|
|
local var_name=$2
|
|
local var_value=$3
|
|
|
|
var_value="${var_value%\"}"
|
|
var_value="${var_value#\"}"
|
|
|
|
local IFS=,
|
|
local OPT_LIST=($var_value)
|
|
|
|
for value in "${OPT_LIST[@]}"; do
|
|
update_config_var $config_path $var_name $value true
|
|
done
|
|
}
|
|
|
|
# Check prerequisites for MySQL database
|
|
check_variables_mysql() {
|
|
: ${DB_SERVER_HOST:="mysql-server"}
|
|
: ${DB_SERVER_PORT:="3306"}
|
|
USE_DB_ROOT_USER=false
|
|
CREATE_ZBX_DB_USER=false
|
|
file_env MYSQL_USER
|
|
file_env MYSQL_PASSWORD
|
|
|
|
file_env MYSQL_ROOT_PASSWORD
|
|
|
|
if [ ! -n "${MYSQL_USER}" ] && [ "${MYSQL_RANDOM_ROOT_PASSWORD}" == "true" ]; then
|
|
echo "**** Impossible to use MySQL server because of unknown Zabbix user and random 'root' password"
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! -n "${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}" ] && [ "${USE_DB_ROOT_USER}" == "true" ] && CREATE_ZBX_DB_USER=true
|
|
|
|
# If root password is not specified use provided credentials
|
|
: ${DB_SERVER_ROOT_USER:=${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=${MYSQL_PASSWORD:-"zabbix"}
|
|
|
|
DB_SERVER_DBNAME=${MYSQL_DATABASE:-"zabbix"}
|
|
}
|
|
|
|
check_db_connect_mysql() {
|
|
echo "********************"
|
|
echo "* DB_SERVER_HOST: ${DB_SERVER_HOST}"
|
|
echo "* DB_SERVER_PORT: ${DB_SERVER_PORT}"
|
|
echo "* DB_SERVER_DBNAME: ${DB_SERVER_DBNAME}"
|
|
if [ "${DEBUG_MODE}" == "true" ]; then
|
|
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: ${DB_SERVER_ZBX_PASS}"
|
|
fi
|
|
echo "********************"
|
|
|
|
WAIT_TIMEOUT=5
|
|
|
|
while [ ! "$(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
|
|
}
|
|
|
|
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 $result
|
|
}
|
|
|
|
create_db_user_mysql() {
|
|
[ "${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_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 '${DB_SERVER_DBNAME}' already exists. Please be careful with database COLLATE!"
|
|
fi
|
|
}
|
|
|
|
create_db_schema_mysql() {
|
|
DBVERSION_TABLE_EXISTS=$(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-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}" \
|
|
${DB_SERVER_DBNAME} 1>/dev/null
|
|
fi
|
|
}
|
|
|
|
update_zbx_config() {
|
|
echo "** Preparing Zabbix server configuration file"
|
|
|
|
ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
|
|
|
|
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"
|
|
update_config_var $ZBX_CONFIG "LogFileSize"
|
|
update_config_var $ZBX_CONFIG "PidFile"
|
|
|
|
update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
|
|
|
|
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}"
|
|
|
|
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}"
|
|
|
|
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}"
|
|
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}"
|
|
|
|
: ${ZBX_ENABLE_SNMP_TRAPS:="false"}
|
|
if [ "${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}"
|
|
update_config_var $ZBX_CONFIG "MaxHousekeeperDelete" "${ZBX_MAXHOUSEKEEPERDELETE}"
|
|
update_config_var $ZBX_CONFIG "SenderFrequency" "${ZBX_SENDERFREQUENCY}"
|
|
|
|
update_config_var $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}"
|
|
|
|
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}"
|
|
|
|
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}"
|
|
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"
|
|
|
|
update_config_var $ZBX_CONFIG "FpingLocation" "/usr/sbin/fping"
|
|
update_config_var $ZBX_CONFIG "Fping6Location"
|
|
|
|
update_config_var $ZBX_CONFIG "SSHKeyLocation" "$ZABBIX_USER_HOME_DIR/ssh_keys"
|
|
update_config_var $ZBX_CONFIG "LogSlowQueries" "${ZBX_LOGSLOWQUERIES}"
|
|
|
|
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/"
|
|
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}"
|
|
|
|
update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
|
|
update_config_var $ZBX_CONFIG "TLSCRLFile" "${ZBX_TLSCRLFILE}"
|
|
|
|
update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
|
|
update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
|
|
|
|
if [ "$(id -u)" != '0' ]; then
|
|
update_config_var $ZBX_CONFIG "User" "$(whoami)"
|
|
else
|
|
update_config_var $ZBX_CONFIG "AllowRoot" "1"
|
|
fi
|
|
}
|
|
|
|
prepare_server() {
|
|
echo "** Preparing Zabbix server"
|
|
|
|
check_variables_mysql
|
|
check_db_connect_mysql
|
|
create_db_user_mysql
|
|
create_db_database_mysql
|
|
create_db_schema_mysql
|
|
|
|
update_zbx_config
|
|
}
|
|
|
|
#################################################
|
|
|
|
if [ "${1#-}" != "$1" ]; then
|
|
set -- /usr/sbin/zabbix_server "$@"
|
|
fi
|
|
|
|
if [ "$1" == '/usr/sbin/zabbix_server' ]; then
|
|
prepare_server
|
|
fi
|
|
|
|
exec "$@"
|
|
|
|
#################################################
|