GMod-Docker

GMod dedicated server in an Ubuntu 22 Docker container.
Includes css content and auto update's on restart

This is a rootless container, by default it runs as user 1000:1000 but this can be changed using the docker user option

Based on the steamcmd Docker image

File structure

The file structure within the container is as follows:

📁mount/
├─ 📁css
|  ├─ CSS content
📁server/
├─ Server files here

Environment variables

Provides the following environment variables for configuration:

Variable	Default value	Description
REPLACE_MOUNT_CONFIG	true	Controls whether the mount.cfg file is replaced automatically on startup, set to any other value to disable
MAX_PLAYERS	32	Max players to allow
GAME_MODE	sandbox	Game mode to host
MAP	gm_construct	Map to host
WORKSHOP_COLLECTION		Workshop collection to host, should be an ID like 2036327578
ARGS		Any further arguments to pass

Running

Docker CLI

docker run \
    -p 27015:27015 \
    -p 27015:27015/udp \
    -v gmod-server:/server \
    -v gmod-mount:/mount \
    code.ggrainger.uk/ggrainger/gmod-docker

Docker Compose

version: "3"
services:
    steamcmd:
        user: 1100:1100
        image: code.ggrainger.uk/ggrainger/gmod-docker
        ports:
            - 27015:27015
            - 27015:27015/udp
        volumes:
            - ./server:/server
            - ./mount:/mount