Rust — panel-native module
Panel-native Rust dedicated server, native-Linux (no Wine), debian:12-slim base.
- Image:
panel-rust:latest — built from ./Dockerfile.
- Game files: downloaded by the panel's SteamCMD updater sidecar (app 258550) into the
panel-<id>-game named volume. Fresh install is ~7 GB; first-ever boot additionally generates a ~500 MB map on the save volume depending on SERVER_WORLD_SIZE.
- Saves:
panel-<id>-saves at /game-saves. Entrypoint symlinks <game>/server into /game-saves/server/ so SteamCMD validate can't wipe worlds.
- RCON: WebSocket RCON (Facepunch dropped Source RCON years ago). Panel speaks this via the
websocket_rcon adapter — ws://<ip>:28016/<password> with JSON-framed {Identifier, Message, Name} requests. Authenticated via the password in the URL path, not headers.
Ports
| Port |
Proto |
Purpose |
| 28015 |
UDP |
Main game traffic |
| 28016 |
TCP |
WebSocket RCON (internal) |
| 28082 |
TCP |
Rust+ push notifications (optional — only needed for the companion app) |
RCON commands wired
list → playerlistbroadcast {msg} → say {msg}kick {player} → kick "{player}"ban {player} → banid {player}save → server.saveshutdown → quit
Log events captured
- Join:
<name>[<pid>/<steamid>] has entered the game
- Leave:
<steamid>/<name> disconnecting: <reason>
Environment vars
| Var |
Default |
Notes |
SERVER_NAME |
panel Rust |
Shown in the Rust server browser |
SERVER_DESCRIPTION |
Powered by panel |
Browser description / tooltip |
SERVER_IDENTITY |
panel-rust |
Save-tree subdirectory name |
SERVER_SEED |
12345 |
Procedural-gen seed |
SERVER_WORLD_SIZE |
3000 |
1000–6000; smaller = faster |
MAX_PLAYERS |
50 |
|
RCON_PASSWORD |
panel_rcon |
RCON auth (URL path) |
SERVER_LEVEL |
Procedural Map |
Map preset |
SERVER_URL |
`` |
Website URL shown in the browser |
SERVER_HEADER_IMAGE |
`` |
512×256 banner image URL |
Known gotchas
- First-ever boot takes 2–5 min to generate the world. No players can connect until generation finishes (log:
Server startup complete is the signal).
- RCON port is published on the container only (panel talks to it over the Docker bridge). Don't expose 28016 externally — password in URL means anyone who sees the URL has full server control.
- If you change
SERVER_WORLD_SIZE or SERVER_SEED on a running server, the next boot wipes the existing world. Rust ties the world to a seed+size pair per identity.
libgl1 + a handful of X libs are installed in the image even though the server runs headless; Rust's Unity runtime dlopens them at startup.
