zabbix-docker/Dockerfiles/proxy-sqlite3/ubuntu/docker-entrypoint.sh

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#!/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 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 [[ $var_name =~ ^TLS.*File$ ]] && [[ ! $var_value =~ ^/.+$ ]]; 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}"
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"
: ${ZBX_USE_NODE_NAME_AS_DB_NAME:="false"}
if [ "${ZBX_USE_NODE_NAME_AS_DB_NAME,,}" == "false" ]; then
update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/db_data/${ZBX_HOSTNAME:-"zabbix-proxy-sqlite3"}.sqlite"
else
node_name=$(uname -n)
update_config_var $ZBX_CONFIG "DBName" "/var/lib/zabbix/db_data/$node_name.sqlite"
fi
update_config_var $ZBX_CONFIG "DBUser"
update_config_var $ZBX_CONFIG "DBPort"
update_config_var $ZBX_CONFIG "DBPassword"
update_config_var $ZBX_CONFIG "MaxConcurrentChecksPerPoller" "${ZBX_MAXCONCURRENTCHECKSPERPOLLER}"
update_config_var $ZBX_CONFIG "ProxyBufferMode" "${ZBX_PROXYBUFFERMODE}"
update_config_var $ZBX_CONFIG "ProxyMemoryBufferAge" "${ZBX_PROXYMEMORYBUFFERAGE}"
update_config_var $ZBX_CONFIG "ProxyMemoryBufferSize" "${ZBX_PROXYMEMORYBUFFERSIZE}"
update_config_var $ZBX_CONFIG "ProxyLocalBuffer" "${ZBX_PROXYLOCALBUFFER}"
update_config_var $ZBX_CONFIG "ProxyOfflineBuffer" "${ZBX_PROXYOFFLINEBUFFER}"
update_config_var $ZBX_CONFIG "ProxyConfigFrequency" "${ZBX_PROXYCONFIGFREQUENCY}"
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 $ZBX_CONFIG "StartAgentPollers" "${ZBX_STARTAGENTPOLLERS}"
update_config_var $ZBX_CONFIG "StartPollers" "${ZBX_STARTPOLLERS}"
update_config_var $ZBX_CONFIG "StartIPMIPollers" "${ZBX_STARTIPMIPOLLERS}"
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 $ZBX_CONFIG "StartHTTPAgentPollers" "${ZBX_STARTHTTPAGENTPOLLERS}"
update_config_var $ZBX_CONFIG "StartHTTPPollers" "${ZBX_STARTHTTPPOLLERS}"
update_config_var $ZBX_CONFIG "StartODBCPollers" "${ZBX_STARTODBCPOLLERS}"
update_config_var $ZBX_CONFIG "StartSNMPPollers" "${ZBX_STARTSNMPPOLLERS}"
: ${ZBX_JAVAGATEWAY_ENABLE:="false"}
if [ "${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 "SocketDir" "/tmp/"
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/bin/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
update_config_var $ZBX_CONFIG "WebDriverURL" "${ZBX_WEBDRIVERURL}"
update_config_var $ZBX_CONFIG "StartBrowserPollers" "${ZBX_STARTBROWSERPOLLERS}"
}
clear_zbx_env() {
[[ "${ZBX_CLEAR_ENV}" == "false" ]] && return
for env_var in $(env | grep -E "^ZBX_"); do
unset "${env_var%%=*}"
done
}
prepare_proxy() {
echo "Preparing Zabbix proxy"
update_zbx_config
clear_zbx_env
}
#################################################
if [ "${1#-}" != "$1" ]; then
set -- /usr/sbin/zabbix_proxy "$@"
fi
if [ "$1" == '/usr/sbin/zabbix_proxy' ]; then
prepare_proxy
fi
exec "$@"
#################################################