steamcmd in Docker

This repository provides everything you need to run steamcmd in Docker.

For convenience it contains the following server files:

Just Cause 2:Multiplayer (no login required)
Starbound (login required)

Why?

The main hurdle of running steamcmd in Docker is that steamcmd supports multiple servers. Compared to other steamcmd docker images, this one exposes a volume named config as well as an environment variable to tell steamcmd which server file to use. This means:

One container can be used to run multiple servers
Server scripts can be created externally and mounted into the container
Container automatically updates game via config file and then starts server via sh file.

Run

To run the container with the default JC2:MP server file:

docker run -td -p 7777:7777 -p 27015:27015 -p 20560:20560 ghetto/steamcmd:latest

The ghetto/steamcmd container can also be run with custom config and sh files. This allows you to start container and have the update and server start process be completely automated.

docker run -td -p 7777:7777 -p 27015:27015 -p 20560:20560 -v /myscripts:/config -e SCRIPT=jc2.config -e INIT=start-jc2.sh ghetto/steamcmd:latest

The ghetto/steamcmd container can also be run with login credentials to download games that require a login.

docker run -td -p 7777:7777 -p 27015:27015 -p 20560:20560 -v /myscripts:/config -e USERNAME=gaben -e PASSWORD=valve -e SCRIPT=starbound.config -e INIT=start-starbound.sh ghetto/steamcmd:latest

Volumes

/config => Directory containing server scripts

Ports

7777 => game port
27015 => query port
20560 => steam

Environment Variables

SCRIPT => jc2.config (default server file to use when launching steamcmd)
INIT => start-jc2.sh (default bash script to start the JC2:MP server)
USERNAME => anonymous (default username to use with login steamcmd command)
PASSWORD => "" (default password to use with the login steamcmd command)

In the box

ghetto/steamcmd
The docker image with steamcmd. Built from the accursoft/micro-debian Debian micro image.
Just Cause 2: Multiplayer server file example (no login)
Starbound server file example (requires login)

Public Builds

https://registry.hub.docker.com/u/ghetto/steamcmd/

Build from Source

docker build -t ghetto/steamcmd .

Notes

Additional ports can be mapped as required by using the -p flag.
See starbound.config/start-starbound.sh for how the system replaces credentials.

Todo

Add an option to download config files from a GIT repo.
Add config files and environment variables for games that require login info.

briggleman/steamcmd