#!/bin/bash set -o pipefail set +e # Script trace mode if [ "${DEBUG_MODE,,}" == "true" ]; then set -o xtrace fi # Default Zabbix server host : ${ZBX_SERVER_HOST:="zabbix-server"} # Default Zabbix server port number : ${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" 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=$4 local masklist=("TLSPSKIdentity") if [ ! -f "$config_path" ]; then echo "**** Configuration file '$config_path' does not exist" return fi if [[ " ${masklist[@]} " =~ " $var_name " ]] && [ ! -z "$var_value" ]; then echo -n "** Updating '$config_path' parameter \"$var_name\": '****'. Enable DEBUG_MODE to view value ..." else echo -n "** Updating '$config_path' parameter \"$var_name\": '$var_value'..." fi # Remove configuration parameter definition in case of unset parameter value if [ -z "$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 and name var_value=$(escape_spec_char "$var_value") var_name=$(escape_spec_char "$var_name") 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 $value true done } update_zbx_config() { echo "** Preparing Zabbix proxy configuration file" ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_proxy.conf 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-sqlite3"}" update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}" fi update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}" update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}" update_config_var $ZBX_CONFIG "ListenBacklog" "${ZBX_LISTENBACKLOG}" 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 $ZBX_CONFIG "EnableRemoteCommands" "${ZBX_ENABLEREMOTECOMMANDS}" update_config_var $ZBX_CONFIG "LogRemoteCommands" "${ZBX_LOGREMOTECOMMANDS}" update_config_var $ZBX_CONFIG "DBHost" update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/db_data/${ZBX_HOSTNAME:-"zabbix-proxy-sqlite3"}.sqlite" update_config_var $ZBX_CONFIG "DBUser" update_config_var $ZBX_CONFIG "DBPort" update_config_var $ZBX_CONFIG "DBPassword" 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}" update_config_var $ZBX_CONFIG "StartPreprocessors" "${ZBX_STARTPREPROCESSORS}" 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}" : ${ZBX_JAVAGATEWAY_ENABLE:="false"} if [ "${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 $ZBX_CONFIG "CacheSize" "${ZBX_CACHESIZE}" 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 $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}" update_config_var $ZBX_CONFIG "TrapperTimeout" "${ZBX_TRAPPERTIMEOUT}" 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 $ZBX_CONFIG "SSLCertLocation" "$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 $ZBX_CONFIG "TLSConnect" "${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}" 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 $ZBX_CONFIG "TLSCipherAll" "${ZBX_TLSCIPHERALL}" update_config_var $ZBX_CONFIG "TLSCipherAll13" "${ZBX_TLSCIPHERALL13}" update_config_var $ZBX_CONFIG "TLSCipherCert" "${ZBX_TLSCIPHERCERT}" update_config_var $ZBX_CONFIG "TLSCipherCert13" "${ZBX_TLSCIPHERCERT13}" update_config_var $ZBX_CONFIG "TLSCipherPSK" "${ZBX_TLSCIPHERPSK}" update_config_var $ZBX_CONFIG "TLSCipherPSK13" "${ZBX_TLSCIPHERPSK13}" update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}" update_config_var $ZBX_CONFIG "TLSPSKIdentity" "${ZBX_TLSPSKIDENTITY}" update_config_var $ZBX_CONFIG "TLSPSKFile" "${ZBX_TLSPSKFILE}" if [ "$(id -u)" != '0' ]; then update_config_var $ZBX_CONFIG "User" "$(whoami)" else update_config_var $ZBX_CONFIG "AllowRoot" "1" fi } prepare_proxy() { echo "Preparing Zabbix proxy" update_zbx_config } ################################################# if [ "${1#-}" != "$1" ]; then set -- /usr/sbin/zabbix_proxy "$@" fi if [ "$1" == '/usr/sbin/zabbix_proxy' ]; then prepare_proxy fi exec "$@" #################################################