CS2Docker AutoRestart

A native Metamod:Source 2.0 plugin that auto-restarts a CS2 server when a game or plugin update is detected, or at a configured daily time.

Intended to be used with CS2Docker, will not work on its own.

Behaviour

Every 10 seconds the plugin checks whether a restart is warranted:

• Out of date - /watchdog/cs2/latest.txt differs from the build_ver env var, or any /watchdog/layers/*/latest.txt changed since the plugin loaded.
• Daily restart - the current UTC time has passed daily_restart_time (once per day).
• Already scheduled - a daily restart was previously triggered.

When a restart is warranted:

• If there are no players, it runs quit immediately.
• Otherwise it prints a chat warning once and waits; it then runs quit at the next map change.

Configuration

All read from the environment (set by CS2Docker):

Env var	Required	Description
build_ver	yes	Current server build version (provided by cs2docker).
daily_restart_time	no	UTC time HH:mm (or HH:mm:ss) for a daily restart.
discord_webhook	no	Discord webhook URL; a message posted once per restart decision.

Building

Requires the submodules (Metamod:Source + HL2SDK-CS2, with the nested hl2sdk-manifests):

git submodule update --init --recursive

Docker (recommended)

Produces the Linux linuxsteamrt64.so and the Metamod plugin layout:

docker compose up --build

Result:

output/addons/metamod/autorestart.vdf
output/addons/autorestart/bin/linuxsteamrt64/autorestart.so

Drop the contents of output/addons/ into the server's game/csgo/addons/ (this is what the CS2Docker autorestart layer ships).

Local (AMBuild)

Needs Python 3, AMBuild, and clang:

mkdir build && cd build
python3 ../configure.py \
  --sdks cs2 \
  --targets x86_64 \
  --mms_path ../metamod-source \
  --hl2sdk-manifests ../metamod-source/hl2sdk-manifests \
  --enable-optimize
ambuild

The packaged output is in build/package/addons/.