Zabbix server configuation in Docker container is overwritten

[nasu67]

Assumiing that /etc/zabbix/zabbix_server.conf in my Zabbix server Docker container contains the configuration used by the server, I can change the Timeout parameter and save it. However, after restarting my container, the changes are lost. Am I doing this the wrong way?

[jad.baz]

You're not supposed to touch the zabbix_server.conf file. This file is overridden by variables in your environment configuration
I don't know which zabbix image you're using but they all work the same way
Read the README again on zabbix-appliance for example

Here's an example docker-compose file which sets HistoryCacheSize

version: '3.1'
services:
  zabbix:
    image: zabbix/zabbix-appliance
    container_name: zabbix
    environment:
      - ZBX_HISTORYCACHESIZE=32M
    volumes:
      - zabbix_mysql:/var/lib/mysql
    ports:
      - 80:80
      - 10051:10051
    restart: always

[nasu67]

Ah, thanks, I will use ZBX_TIMEOUT for this then.