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ROLAC/deploy/vm/runner/README.md
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2026-06-22 15:53:51 -07:00

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# Gitea act_runner on the VM (Docker Compose)
Runs the CI/CD runner as a container, but with a **custom image** that bundles the
.NET 8 SDK + Docker CLI + Node, because the ROLAC workflow does both `dotnet test`
and `docker build`/`compose`. The stock `gitea/act_runner` image has neither.
It registers with the label **`ubuntu:host`**:
- `ubuntu` = the label name the workflow targets (`runs-on: ubuntu`).
- `:host` = run each step **inside this runner container** (which has the tools),
instead of spawning a separate job container that wouldn't have dotnet/docker.
The container mounts the **host Docker socket** (so build/push/compose act on the
host daemon) and **`/opt/rolac`** at the same path (so compose's relative volumes
resolve), and uses **host networking** (so the deploy step's
`curl http://localhost:8080/api/health` works).
## Setup
1. **Get a runner registration token** in Gitea:
Settings → Actions → Runners → **Create new runner** → copy the token.
(This is the *registration* token — different from the `REGISTRY_TOKEN` repo
secret used for `docker login`.)
2. **Configure + start** (on the VM, from this directory):
```bash
cd deploy/vm/runner
cp .env.example .env
nano .env # paste GITEA_RUNNER_REGISTRATION_TOKEN
docker compose up -d --build
```
3. **Verify** it shows up online in Gitea → Settings → Actions → Runners, with the
`ubuntu` label.
## Notes
- Registration state is stored in `./runner-data/.runner` (a bind mount), so the
runner does **not** re-register on restart. To re-register from scratch, stop the
container and delete `runner-data/`.
- `docker login git.golife.love` for the registry is done by the **workflow** using
the repo secrets `REGISTRY_USER` / `REGISTRY_TOKEN` — you do not need to log in
inside the runner manually.
- Logs: `docker compose logs -f runner`.
- The runner can build/run containers on the host because it shares the host Docker
socket. Treat this runner as privileged — only run trusted workflows on it.