Minecraft, Docker-Compose, Console Commands

I run a few Minecraft servers for my kids using docker-compose and the excellent itzg docker images.

Sometimes they request I tweak the game rules and I need to connect to the console of a running server.

Make sure the container you are trying to connect to has the following docker-compose options:

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stdin_open: true
tty: true

The java Minecraft server service in my docker-compose currently looks like this:

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minecraft-java:
  image: itzg/minecraft-server
  stdin_open: true
  tty: true
  environment:
    EULA: "TRUE"
    MODE: survival
    SEED: "REDACTED" 
    SERVER_NAME: REDACTED
    DIFFICULTY: hard 
    MEMORY: 4G
  ports:
    - 25565:25565
  volumes:
    - /media/gamedata/minecraft-java:/data
  restart: unless-stopped

Start up the servers and run docker container ls to find out the final name docker-compose assigned to the container. Mine was minecraft_minecraft-java_1.

Now run docker attach minecraft_minecraft-java_1 and you will be in console mode and able to run gamerule commands etc.