Starting Zabbix Server within docker replaces strings with nothing in config file → - docker

Question

→ or totally ignored strings like name of new DB for testing purposes.
Firstly tries to add something about ~250 to 250 already added hosts and Z-server shutted down. I've restarted it and inside docker logs I saw this:
6:20191014:091840.201 using configuration file: /etc/zabbix/zabbix_server.conf
6:20191014:091840.223 current database version (mandatory/optional): 04020000/04020001
6:20191014:091840.223 required mandatory version: 04020000
6:20191014:091840.484 __mem_malloc: skipped 7 asked 108424 skip_min 304 skip_max 12192
6:20191014:091840.484 [file:dbconfig.c,line:94] __zbx_mem_realloc(): out of memory (requested 108424 bytes)
6:20191014:091840.484 [file:dbconfig.c,line:94] __zbx_mem_realloc(): please increase CacheSize configuration parameter
6:20191014:091840.484 === memory statistics for configuration cache ===
Solution for those problem was to increase CacheSize in zabbix_server.conf . Okay, that's not a problem and after this Im push a new config to Z-server and restart it... → and z-server stops already after start and logs says the same problem. After reading config in container I saw what string what I corrected to matching my wishes are missing O_o. Strings are deleted.
My config:
LogType=console
DBHost=postgres-server
DBName=zabbix_pwd
DBSchema=public
DBUser=zabbix
DBPassword=zabbix
DBPort=5432
StartPollers=5
StartIPMIPollers=5
StartPollersUnreachable=5
SNMPTrapperFile=/var/lib/zabbix/snmptraps/snmptraps.log
StartSNMPTrapper=1
CacheSize=512M
HistoryCacheSize=512M
HistoryIndexCacheSize=512M
TrendCacheSize=512m
ValueCacheSize=256M
AlertScriptsPath=/usr/lib/zabbix/alertscripts
ExternalScripts=/usr/lib/zabbix/externalscripts
FpingLocation=/usr/sbin/fping
Fping6Location=/usr/sbin/fping6
SSHKeyLocation=/var/lib/zabbix/ssh_keys
SSLCertLocation=/var/lib/zabbix/ssl/certs/
SSLKeyLocation=/var/lib/zabbix/ssl/keys/
SSLCALocation=/var/lib/zabbix/ssl/ssl_ca/
LoadModulePath=/var/lib/zabbix/modules/
And what I've getting after starting z-server:
LogType=console
DBHost=postgres-server
DBName=zabbix_pwd
DBSchema=public
DBUser=zabbix
DBPassword=zabbix
DBPort=5432
SNMPTrapperFile=/var/lib/zabbix/snmptraps/snmptraps.log
StartSNMPTrapper=1
AlertScriptsPath=/usr/lib/zabbix/alertscripts
ExternalScripts=/usr/lib/zabbix/externalscripts
FpingLocation=/usr/sbin/fping
Fping6Location=/usr/sbin/fping6
SSHKeyLocation=/var/lib/zabbix/ssh_keys
SSLCertLocation=/var/lib/zabbix/ssl/certs/
SSLKeyLocation=/var/lib/zabbix/ssl/keys/
SSLCALocation=/var/lib/zabbix/ssl/ssl_ca/
LoadModulePath=/var/lib/zabbix/modules/
Any suggestions to how-to rule the world and don't be captured by doctors ?

Answer 1

With docker you need to send conf parameters in the docker-compose.yml file, or in your docker run command using the -e :
For example from my docker yml file:
zabbix-server:
image: zabbix/zabbix-server-pgsql:ubuntu-4.2.6
environment:
ZBX_MAXHOUSEKEEPERDELETE: 5000
ZBX_STARTPOLLERS: 15
ZBX_CACHESIZE: 8M
ZBX_STARTDBSYNCERS: 4
ZBX_HISTORYCACHESIZE: 16M
ZBX_TRENDCACHESIZE: 4M
ZBX_VALUECACHESIZE: 8M
ZBX_LOGSLOWQUERIES: 3000
Another way to work with zabbix:
https://hub.docker.com/r/monitoringartist/zabbix-3.0-xxl/