Initial commit

.github/workflows/build.yml

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+name: Build
+on:
+  push:
+    branches:
+      - master
+
+  schedule:
+    - cron: 0 4 * * 7
+
+  workflow_dispatch:
+
+jobs:
+  latest:
+    runs-on: [runner]
+    container: git.sh-edraft.de/sh-edraft.de/act-runner:latest
+    steps:
+      - name: Clone Repository
+        uses: https://github.com/actions/checkout@v3
+        with:
+          token: ${{ secrets.CI_ACCESS_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Login to registry git.sh-edraft.de
+        uses: https://github.com/docker/login-action@v1
+        with:
+          registry: git.sh-edraft.de
+          username: ${{ secrets.CI_USERNAME }}
+          password: ${{ secrets.CI_ACCESS_TOKEN }}
+
+      - name: Build docker
+        run: |
+          docker build -t git.sh-edraft.de/sh-edraft.de/garrysmod .
+  
+      - name: Push image
+        run: |
+          docker push git.sh-edraft.de/sh-edraft.de/garrysmod
+  

Dockerfile

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+FROM hackebein/srcds
+
+ENV \
+	# App
+	APPS="4020 -validate -language en,232330 -validate -language en" \
+	#
+	# API
+	# http://steamcommunity.com/dev/apikey
+	AUTHKEY="" \
+	#
+	# Public access
+	# automatic via API
+	GLSTAPP="4000" \
+	# manual
+	# APPID: 4000
+	# http://steamcommunity.com/dev/managegameservers
+	GLST="" \
+	#
+	# Workshop server download (require API)
+	WORKSHOP="\${WORKSHOPCOLLECTIONID:-}" \
+	#
+	# Workshop client download (require API)
+	WORKSHOPDL="" \
+	#
+	# Server config
+	GAME="garrysmod" \
+	TICKRATE="66" \
+	MAXPLAYERS="16" \
+	GAMEMODE="sandbox" \
+	GAMETYPE="0" \
+	MAP="gm_flatgrass" \
+	MAPGROUP="mg_active" \
+	CONFIG="server.cfg" \
+	#
+	# Start parameters
+	SRCDSPARAMS="\
+		-game \${GAME} \
+		-tickrate \${TICKRATE} \
+		-maxplayers \${MAXPLAYERS} \
+		-authkey \${AUTHKEY} \
+		+host_workshop_collection \${WORKSHOP} \
+		+gamemode \${GAMEMODE} \
+		+map \${MAP} \
+		+servercfgfile \${CONFIG} \
+		\${CUSTOMPARAMETERS} \
+	"

README.md

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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.