| .. | ||
| .dockerignore | ||
| .gitignore | ||
| Dockerfile | ||
| README.md | ||
| server.properties | ||
| start-minecraft.sh | ||
| start.sh | ||
This docker image provides a Minecraft Server that will automatically download the latest stable version at startup. You can also run/upgrade to any specific version or the latest snapshot. See the Versions section below for more information.
To simply use the latest stable version, run
docker run -d -p 25565:25565 itzg/minecraft-server
where the standard server port, 25565, will be exposed on your host machine.
If you want to serve up multiple Minecraft servers or just use an alternate port, change the host-side port mapping such as
docker run -p 25566:25565 ...
will serve your Minecraft server on your host's port 25566 since the -p syntax is
host-port:container-port.
Speaking of multiple servers, it's handy to give your containers explicit names using --name, such as
docker run -d -p 25565:25565 --name mc itzg/minecraft-server
With that you can easily view the logs, stop, or re-start the container:
docker logs -f mc
( Ctrl-C to exit logs action )
docker stop mc
docker start mc
Interacting with the server
In order to attach and interact with the Minecraft server, add -it when starting the container, such as
docker run -d -it -p 25565:25565 --name mc itzg/minecraft-server
With that you can attach and interact at any time using
docker attach mc
and then Control-p Control-q to detach.
For remote access, configure your Docker daemon to use a tcp socket (such as -H tcp://0.0.0.0:2375)
and attach from another machine:
docker -H $HOST:2375 attach mc
Unless you're on a home/private LAN, you should enable TLS access.
EULA Support
Mojang now requires accepting the Minecraft EULA. To accept add
-e EULA=TRUE
such as
docker run -d -it -e EULA=TRUE -p 25565:25565 itzg/minecraft-server
Attaching data directory to host filesystem
In order to readily access the Minecraft data, use the -v argument
to map a directory on your host machine to the container's /data directory, such as:
docker run -d -v /path/on/host:/data ...
When attached in this way you can stop the server, edit the configuration under your attached /path/on/host
and start the server again with docker start CONTAINERID to pick up the new configuration.
NOTE: By default, the files in the attached directory will be owned by the host user with UID of 1000. You can use an different UID by passing the option:
-e UID=1000
replacing 1000 with a UID that is present on the host. Here is one way to find the UID given a username:
grep some_host_user /etc/passwd|cut -d: -f3
Versions
To use a different Minecraft version, pass the VERSION environment variable, which can have the value
- LATEST
- SNAPSHOT
- (or a specific version, such as "1.7.9")
For example, to use the latest snapshot:
docker run -d -e VERSION=SNAPSHOT ...
or a specific version:
docker run -d -e VERSION=1.7.9 ...
Running a Forge Server
By default the container will run the selected "vanilla" (aka official) Minecraft server, but
you can also choose to run the LATEST or a specific version of a Forge server.
Enable Forge server mode by adding a -e TYPE=FORGE to your command-line, such as
$ docker run -d -v /path/on/host:/data -e TYPE=FORGE -e VERSION=1.7.10 \
-p 25565:25565 -e EULA=TRUE itzg/minecraft
In order to add mods, you will need to attach the container's /data directory
(see "Attaching data directory to host filesystem”).
Then, you can add mods to the /path/on/host/mods folder you chose. From the example above,
the /path/on/host folder contents look like:
/path/on/host
├── mods
│ └── ... INSTALL MODS HERE ...
├── config
│ └── ... CONFIGURE MODS HERE ...
├── ops.json
├── server.properties
├── whitelist.json
└── ...
If you add mods while the container is running, you'll need to restart it to pick those up:
docker stop $ID
docker start $ID
Server configuration
Difficulty
The difficulty level (default: hard) can be set like:
docker run -d -e DIFFICULTY=peaceful
Valid values are: peaceful, easy, normal, and hard, and an
error message will be output in the logs if it's not one of these
values.
Op/Administrator Players
To add more "op" (aka adminstrator) users to your Minecraft server, pass the Minecraft usernames separated by commas via the OPS environment variable, such as
docker run -d -e OPS=user1,user2 ...
Server icon
A server icon can be configured using the ICON variable. The image will be automatically
downloaded, scaled, and converted from any other image format:
docker run -d -e ICON=http://..../some/image.png ...
Level Seed
If you want to create the Minecraft level with a specific seed, use SEED, such as
docker run -d -e SEED=1785852800490497919 ...
Game Mode
By default, Minecraft servers are configured to run in Survival mode. You can
change the mode using MODE where you can either provide the standard
numerical values or the
shortcut values:
- creative
- survival
For example:
docker run -d -e MODE=creative ...
Message of the Day
The message of the day, shown below each server entry in the UI, can be changed with the MOTD environment variable, such as
docker run -d -e 'MOTD=My Server' ...
If you leave it off, the last used or default message will be used. The example shows how to specify a server message of the day that contains spaces by putting quotes around the whole thing.
PVP Mode
By default servers are created with player-vs-player (PVP) mode enabled. You can disable this with the PVP
environment variable set to false, such as
docker run -d -e PVP=false ...
World Save Name
You can either switch between world saves or run multiple containers with different saves by using the LEVEL option,
where the default is "world":
docker run -d -e LEVEL=bonus ...
NOTE: if running multiple containers be sure to either specify a different -v host directory for each
LEVEL in use or don't use -v and the container's filesystem will keep things encapsulated.
JVM Configuration
Memory Limit
The Java memory limit can be adjusted using the JVM_OPTS environment variable, where the default is
the setting shown in the example (max and min at 1024 MB):
docker run -e 'JVM_OPTS=-Xmx1024M -Xms1024M' ...