RUSH-B.ORG CS2 Server

Docker image and management agent for CS2 dedicated servers on RUSH-B.ORG match platform.

Stack

Component	Version	Purpose
CS2 Dedicated Server	App 730	Game server
MetaMod:Source	2.0 (git1390)	Plugin framework
CounterStrikeSharp	v1.0.364	.NET plugin API for CS2
MatchZy	0.8.15	Match management (get5-compatible)

Architecture

Host Machine
├── cs2-base/                    <- Shared CS2 installation (~62GB, downloaded once)
│   └── game/csgo/addons/        <- MetaMod + CounterStrikeSharp + MatchZy
├── shared/                      <- Shared across all instances
│   ├── admins_simple.ini
│   ├── plugins/                 <- Custom CSSharp plugins
│   └── maps/                    <- Custom maps
└── instances/
    ├── 27015/                   <- Per-instance
    │   ├── config/              <- server.cfg, matchzy.cfg (read-only mount)
    │   ├── data/                <- Writable: CSSharp logs, MatchZy data
    │   ├── demos/               <- Match recordings
    │   └── docker-compose.yml
    └── 27016/
        └── ...

CS2 base is downloaded once and bind-mounted into all containers. Per-instance writable directories (logs, plugin data, demos) are symlinked inside the container. The 2nd+ server on the same host starts in seconds.

Docker Image

Base: cm2network/steamcmd:root

Security

1. Entrypoint runs as root for setup (SteamCMD, plugin install, symlinks, permissions)
2. CS2 process drops to steam user via gosu before starting
3. CS2 never runs as root

Environment Variables

Variable	Default	Description
CS2_PORT	27015	Game server port
CS2_GOTV_PORT	27020	GOTV port
CS2_MAP	de_mirage	Starting map
CS2_GSLT		Game Server Login Token
DOTNET_SYSTEM_GLOBALIZATION_INVARIANT	1	Required for CounterStrikeSharp .NET runtime

Volumes

Mount	Purpose	Mode
/home/steam/cs2-dedicated	Shared CS2 base	rw
/instance/config	server.cfg, matchzy.cfg	ro
/instance/data	Logs, plugin state	rw
/shared	Admin config	ro
/custom/plugins	Custom plugins (.dll)	ro
/custom/maps	Custom maps (.bsp)	ro
/demos	Match recordings	rw

Build & Run

# Build
cd docker/cs2-server
docker build -t ghcr.io/rushborg/cs2-server:latest .

# Run
docker run -d --network host \
  --security-opt seccomp=unconfined \
  -e CS2_PORT=27015 \
  -e CS2_GSLT=YOUR_TOKEN \
  -e DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1 \
  -v /opt/cs2-base:/home/steam/cs2-dedicated \
  -v ./config:/instance/config:ro \
  -v ./data:/instance/data \
  ghcr.io/rushborg/cs2-server:latest

Agent

Go binary running on each game server host. Connects to the platform via WebSocket and manages CS2 Docker containers.

Commands

Command	Description
deploy_server	Create and start a new CS2 instance
stop_server / remove_server / restart_server	Lifecycle management
setup_base	Install/verify shared CS2 base
update_base	Update CS2 + plugins, restart all instances
update_agent	Self-update agent binary from platform
query_server	A2S status query
exec_rcon	Execute RCON command
sync_admins	Sync admin list
install_plugin / install_map	Custom content management
get_logs / get_status	Monitoring

Build

cd agent
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-s -w" -o rushborg-agent ./cmd/rushborg-agent

Config (/etc/rushborg/agent.yaml)

api_url: "https://rush-b.org/api"
host_id: "uuid"
api_key: "key"
data_dir: "/opt/rushborg-srv"
docker_image: "ghcr.io/rushborg/cs2-server:latest"

CI/CD

.github/workflows/docker-cs2.yml:

• Trigger: push to main (docker/ or agent/), manual dispatch
• CS2 image: self-hosted runner, pushed to GHCR
• Agent: GitHub runners, amd64 + arm64 artifacts

License

MIT