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# docker-garrysmod
A Docker image for running a [Garry's Mod](https://gmod.facepunch.com/) dedicated server, based on [hackebein/docker-srcds](https://github.com/Hackebein/docker-srcds).
This repository is a fork of [Hackebein/docker-garrysmod](https://github.com/Hackebein/docker-garrysmod).
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. The game gives you the tools and leaves you to play.
The image is automatically built and pushed to:
```text
git.sh-edraft.de/sh-edraft.de/garrysmod
```
## Table of Contents
- [Quick Start](#quick-start)
- [Enabling the Steam API](#enabling-the-steam-api)
- [Public Listing](#public-listing)
- [Workshop Collections](#workshop-collections)
- [Custom Server Configuration](#custom-server-configuration)
- [Example: Trouble in Terrorist Town (TTT)](#example-trouble-in-terrorist-town-ttt)
- [Environment Variables](#environment-variables)
- [Overlay Folder](#overlay-folder)
- [Further Configuration](#further-configuration)
## Quick Start
Start a basic sandbox server on the default port (`27015`):
```bash
docker run -it \
-p 27015:27015/tcp \
-p 27015:27015/udp \
git.sh-edraft.de/sh-edraft.de/garrysmod
```
## Enabling the Steam API
Some features (public server listing, Workshop downloads) require a Steam Web API key.
```bash
docker run -it \
-p 27015:27015/tcp \
-p 27015:27015/udp \
-e "AUTHKEY=..." \
git.sh-edraft.de/sh-edraft.de/garrysmod
```
Get your `AUTHKEY` from <http://steamcommunity.com/dev/apikey>.
## Public Listing
If you've set `AUTHKEY`, your server is automatically listed publicly. Alternatively, you can register a Game Server Login Token (GLST) manually:
```bash
docker run -it \
-p 27015:27015/tcp \
-p 27015:27015/udp \
-e "GLST=..." \
git.sh-edraft.de/sh-edraft.de/garrysmod
```
Get your `GLST` from <http://steamcommunity.com/dev/managegameservers> (App ID: `4000`).
## Workshop Collections
Downloading Workshop content requires `AUTHKEY` to be set.
```bash
docker run -it \
-p 27015:27015/tcp \
-p 27015:27015/udp \
-e "AUTHKEY=..." \
-e "WORKSHOPCOLLECTIONID=..." \
git.sh-edraft.de/sh-edraft.de/garrysmod
```
## Custom Server Configuration
Mount your own `server.cfg` into the container:
```bash
docker run -it \
-p 27015:27015/tcp \
-p 27015:27015/udp \
-v ./server.cfg:/opt/steam/garrysmod/cfg/server.cfg \
git.sh-edraft.de/sh-edraft.de/garrysmod
```
## Example: Trouble in Terrorist Town (TTT)
```bash
# make sure the server.cfg file exists
touch ./server.cfg
# start the container
docker run -it \
-p 27015:27015/tcp \
-p 27015:27015/udp \
-e "AUTHKEY=..." \
-e "GAMEMODE=terrortown" \
-e "MAP=ttt_minecraft_b5" \
-e "WORKSHOP=843519054" \
-e "WORKSHOPDL=843519054" \
-v ./server.cfg:/opt/steam/garrysmod/cfg/server.cfg \
-v ./overlay:/opt/overlay \
git.sh-edraft.de/sh-edraft.de/garrysmod
```
This uses the [TTT Workshop Collection](https://steamcommunity.com/sharedfiles/filedetails/?id=843519054), downloaded both server-side (`WORKSHOP`) and client-side (`WORKSHOPDL`).
## Environment Variables
| Variable | Description | Default |
| --- | --- | --- |
| `AUTHKEY` | Steam Web API key. Required for the public server list and Workshop downloads. Get one at <http://steamcommunity.com/dev/apikey> | _(empty)_ |
| `GLST` | Game Server Login Token for public listing. Get one at <http://steamcommunity.com/dev/managegameservers> (App ID `4000`). Not needed if `AUTHKEY` is set | _(empty)_ |
| `GAME` | Game mod directory | `garrysmod` |
| `GAMEMODE` | Gamemode to run on server start | `sandbox` |
| `MAP` | Map to load on server start | `gm_flatgrass` |
| `MAPGROUP` | Map group / map cycle group | `mg_active` |
| `GAMETYPE` | Game type passed to the server | `0` |
| `MAXPLAYERS` | Maximum number of players | `16` |
| `TICKRATE` | Server tickrate. **Note:** changing this is not recommended | `66` |
| `CONFIG` | Server config file, relative to `cfg/`. **Note:** changing this is not recommended | `server.cfg` |
| `WORKSHOP` | Workshop collection ID to download for the server | _(empty)_ |
| `WORKSHOPDL` | Workshop collection ID for clients to download before joining | _(empty)_ |
| `CUSTOMPARAMETERS` | Additional raw command-line parameters appended to the server start command | _(empty)_ |
## Overlay Folder
You can use an overlay folder to add or overwrite files provided by Steam (e.g. addons, configs, maps) without rebuilding the image:
```bash
-v ./overlay:/opt/overlay
```
See [hackebein/docker-srcds: Overlay folder](https://github.com/Hackebein/docker-srcds#overlay-folder) for details.
## Further Configuration
This image inherits all environment variables and options from the parent image. See [hackebein/docker-srcds](https://github.com/Hackebein/docker-srcds) for the full list of available configuration options.