# Deploying Shade

Shade ships as a single Docker image that contains the prekey server, observer dashboard, OpenAPI contract, and stale cleanup. You deploy one container per project.

## Quick start

```bash
docker run -d \
  --name my-project-shade \
  -v my-project-shade:/data \
  -p 3900:3900 \
  -e SHADE_OBSERVER_TOKEN=change-me-to-at-least-16-chars \
  gt.zyon.no/stian/shade-prekey:latest
```

That's it. Your projects can now register identities and exchange prekey bundles via `http://localhost:3900`.

## Why one container per project

Each project is self-contained. Nova doesn't depend on Orchestrator being up. Future projects can be added without touching existing ones. The container is tiny (~260 MB), idle resource usage is near zero, and each container owns its own SQLite volume.

```
Project A              Project B              Future projects
─────────              ─────────              ────────────────
app + frontend         app + frontend         app + frontend
    │                      │                      │
    ↓                      ↓                      ↓
shade-a container      shade-b container      shade-n container
(port 3900)            (port 3901)            (port 390n)
sqlite volume          sqlite volume          sqlite volume
```

## Dokploy deployment

1. Go to Dokploy → Projects → New Project → Docker Compose
2. Paste the `docker-compose.yml` from [`examples/05-dokploy-deployment`](../examples/05-dokploy-deployment/docker-compose.yml)
3. Set env vars in the Dokploy UI:
   - `SHADE_OBSERVER_TOKEN` (generate a random 32+ char string)
4. Set the container name unique per project (e.g., `nova-shade`, `orchestrator-shade`)
5. Deploy

Dokploy will pull the image, create the volume, and health check the container automatically.

## Volumes and backup

The `/data` volume holds:
- `shade-prekeys.db` — the SQLite database with all identities, prekeys, and activity timestamps
- WAL journal files for crash safety

**Backup:** Copy the `.db` file while the container is stopped, or use SQLite's online backup API:
```bash
docker exec my-project-shade sqlite3 /data/shade-prekeys.db ".backup /data/backup.db"
docker cp my-project-shade:/data/backup.db ./local-backup.db
```

**Restore:** Stop the container, copy the `.db` file into the volume, restart.

## PostgreSQL instead of SQLite

If you want to share a Postgres instance (or need HA), set `SHADE_PREKEY_PG_URL`:

```yaml
environment:
  - SHADE_PREKEY_PG_URL=postgres://shade:shade@postgres:5432/shade
```

Tables will be created automatically with the `shade_server_*` prefix, so they coexist cleanly with any other tables in the same database.

## Environment variable reference

| Var | Default | Description |
|-----|---------|-------------|
| `PORT` | `3900` | HTTP port |
| `SHADE_PREKEY_DB_PATH` | `/data/shade-prekeys.db` | SQLite file location |
| `SHADE_PREKEY_PG_URL` | unset | Postgres URL (overrides SQLite) |
| `SHADE_OBSERVER_TOKEN` | unset | Enables dashboard at `/shade-observer/dashboard/`. Min 16 chars. |
| `SHADE_STALE_DAYS` | `30` | Purge identities with no activity in N days |
| `SHADE_CLEANUP_INTERVAL_HOURS` | `24` | Cleanup cycle interval |
| `SHADE_LOG_LEVEL` | `info` | `debug` / `info` / `warn` / `error` |

## Health and observability

- **Health:** `GET /health` — returns `{"status":"ok"}` when the storage backend is reachable. Docker's HEALTHCHECK uses this.
- **Metrics:** `GET /metrics` — Prometheus format with counters, histograms, and gauges for all routes.
- **OpenAPI:** `GET /openapi.yaml` — machine-readable API contract for any language.
- **Redoc viewer:** `GET /docs` — human-readable API reference.
- **Dashboard:** `GET /shade-observer/dashboard/` — live activity viewer (requires token).

## Stale cleanup

Identities with no activity (no bundle fetches, no replenishments, no registration refreshes) for more than `SHADE_STALE_DAYS` days are automatically purged from the database. This keeps the database bounded without manual housekeeping.

The cleanup task runs once at startup and then every `SHADE_CLEANUP_INTERVAL_HOURS` hours. Each cycle logs the number of purged identities.

## Multiple Shade instances on the same host

Run multiple projects side-by-side with different container names and ports:

```yaml
services:
  nova-shade:
    container_name: nova-shade
    image: gt.zyon.no/stian/shade-prekey:latest
    ports: ["3900:3900"]
    volumes: [nova-shade-data:/data]
    environment:
      - SHADE_OBSERVER_TOKEN=nova-token-32-chars-minimum-xxx

  orch-shade:
    container_name: orch-shade
    image: gt.zyon.no/stian/shade-prekey:latest
    ports: ["3901:3900"]
    volumes: [orch-shade-data:/data]
    environment:
      - SHADE_OBSERVER_TOKEN=orch-token-32-chars-minimum-xxx

volumes:
  nova-shade-data:
  orch-shade-data:
```

## CI publishing

Tagged releases auto-publish to the Gitea container registry via `.gitea/workflows/docker.yml`. To cut a release:

```bash
bun run version 1.0.1
git push --tags
```

## Security notes

- **Never commit `SHADE_OBSERVER_TOKEN`.** Use Dokploy secrets or environment-specific `.env` files.
- The prekey server stores **public keys only**. No private keys ever touch it.
- Rate limiting is on by default (5 registrations per hour per IP, etc.). Tune via `createPrekeyRoutes` options if embedding, or configure at reverse-proxy level for the container.
- Put the container behind a reverse proxy (Traefik, Caddy) for TLS termination.