Supported versions

• 1.12 with tags: 1.12, latest
• 1.11.2 with tags: 1.11.2, 1.11

Description

• Docker hub page: https://hub.docker.com/r/t9t9t/minecraft-server/
• Source: https://github.com/t9t/minecraft-server-docker-image
• Report issues: https://github.com/t9t/minecraft-server-docker-image/issues

This image uses a volume to store the Minecraft world data, which also contains configuration files such as server.properties, banned-ips.json, banned-players.json, ops.json, and whitelist.json.

Start an instance

To start an instance, use something like the following:

docker run \
    --init --detach \
    --name=minecraft-server \
    --publish=25565:25565 \
    --restart=on-failure:5 \
    --stop-timeout=30 \
    --volume=/var/lib/minecraft/world/:/world \
    t9t9t/minecraft-server

This will use the directory /var/lib/minecraft/world as the world directory.

If it does not contain a valid eula.txt yet, the server will be shut down immediately. Make sure you agree to the EULA, then add eula=true to eula.txt.

If it does not contain a server.properties, the server will create a default one. It is recommended that you tweak all settings though.

You can configure the Java minimum and maximum memory usage using the environment variables JAVA_MIN_MEMORY and JAVA_MAX_MEMORY environment variables respectively. The defaults are 128M and 2048M respectively.

Sending commands

To send commands to the server, use the sendcommand script:

docker exec minecraft-server sendcommand 'say Teleporting skankhunt42 to (0,200,0)'
docker exec minecraft-server sendcommand teleport skankhunt42 0 200 0

Note that any output will be sent to the standard output of the Minecraft server, which will end up in the docker logs and the Minecraft logs in logs directory.

Alternatively, you may enable RCON (by adding enable-rcon=true to server.properties and setting rcon.password to some password), and use the rcon command:

docker exec minecraft-server sendcommand rconpassword 'say Teleporting skankhunt42 to (0,200,0)' 'teleport skankhunt42 0 200 0'

Quotes are mandatory in this case, because the rcon can accept multiple commands. This will return the output to the standard output of docker exec.

This assumes that the RCON port is set to the default of 25575 (you may of course expose it using any other port by using the -p option of docker run).