# Deploying on Unraid

The MRP app is a single Docker container that stores everything (SQLite database + uploaded files + backups) under a single `/data` volume. This guide walks through installing it on an Unraid server using the **Docker GUI**, with images coming from a **Gitea Actions** runner that rebuilds on every push and publishes to `registry.alwisp.com`.

You can skip the registry and have Unraid build locally — both paths are documented below.

---

## Architecture at a glance

```
  git push main ─► Gitea Actions (.gitea/workflows/docker-build.yml)
                     │
                     ├── docker login registry.alwisp.com
                     ├── docker build -f Dockerfile .
                     └── docker push registry.alwisp.com/<owner>/<repo>:latest
                                                 │
                                                 ▼
                        Unraid Docker tab  ──►  pull image
                                                 │
                                                 ▼
                        Container: /data volume, :3000, reverse-proxied
```

---

## 1. Prerequisites

- **Unraid** 6.11+ with the Docker service enabled.
- A **subdomain** (e.g. `mrp.yourdomain.tld`) pointed at Unraid through your existing reverse proxy (SWAG, Nginx Proxy Manager, Caddy, Traefik, Zoraxy — whichever you already use). The subdomain is what operators will scan into from their phones.
- A Gitea server hosting this repo with:
  - Actions enabled, runner online
  - Two repo secrets: `REGISTRY_USER` and `REGISTRY_TOKEN` with push rights to `registry.alwisp.com`
  - The workflow at `.gitea/workflows/docker-build.yml` (already committed)

If you don't have the CI path, skip to [§5: Unraid builds locally](#5-alternative-unraid-builds-locally).

---

## 2. Prepare the data directory on Unraid

Create the appdata folder. Unraid conventionally uses `/mnt/user/appdata/<app>`:

```bash
mkdir -p /mnt/user/appdata/mrp-qrcode
chown -R 1001:1001 /mnt/user/appdata/mrp-qrcode
```

UID 1001 is the `nextjs` user inside the container (`Dockerfile` creates it). Getting this wrong is the #1 cause of "can't write to /data" errors at first boot.

Generate a secret you will paste into the `APP_SECRET` env var:

```bash
openssl rand -base64 48
```

Keep it somewhere safe. Changing it logs every existing session out.

---

## 3. Gitea Actions: auto-build the image

The workflow at [`.gitea/workflows/docker-build.yml`](../.gitea/workflows/docker-build.yml) triggers on every push to `main`. It runs in `catthehacker/ubuntu:act-latest` and does exactly:

```yaml
- docker/login-action@v3   # registry.alwisp.com, REGISTRY_USER / REGISTRY_TOKEN
- docker build -t registry.alwisp.com/${{ gitea.repository }}:latest .
- docker push registry.alwisp.com/${{ gitea.repository }}:latest
```

`${{ gitea.repository }}` expands to `<owner>/<repo>`, so the published image path is:

```
registry.alwisp.com/<owner>/<repo>:latest
```

**One-time repo setup**:

1. Gitea repo → **Settings → Actions → Runners** — confirm your runner is online and labelled `ubuntu-latest`.
2. Gitea repo → **Settings → Secrets** — add:
   - `REGISTRY_USER` — a user that can push to `registry.alwisp.com`
   - `REGISTRY_TOKEN` — that user's password or personal access token

**Pull credentials on Unraid** (required if the registry is private):

```bash
# As root on Unraid
docker login registry.alwisp.com -u <user> -p <token>
```

Credentials are stored in `/root/.docker/config.json`; Unraid reuses them automatically on pull.

---

## 4. Install on Unraid (Docker GUI, `docker pull` path)

1. Open the Unraid web UI → **Docker** tab → **Add Container**.
2. Fill the template. Bold fields matter; the rest can stay default:

| Field | Value |
|---|---|
| **Name** | `mrp-qrcode` |
| **Repository** | `registry.alwisp.com/<owner>/<repo>:latest` |
| **Network Type** | `Bridge` |
| **Console shell command** | `sh` |
| **Privileged** | Off |
| **Icon URL** (optional) | point at any PNG you host; public/icon.png in the repo is a reasonable pick |

3. **Port mapping** — *Add another Path, Port, Variable, Label or Device* → *Port*:

| Name | Container Port | Host Port | Protocol |
|---|---|---|---|
| Web UI | `3000` | `3000` (or any free port) | TCP |

4. **Volume mapping** — *Add* → *Path*:

| Name | Container Path | Host Path | Access |
|---|---|---|---|
| Data | `/data` | `/mnt/user/appdata/mrp-qrcode` | Read/Write |

5. **Environment variables** — *Add* → *Variable* for each:

| Key | Required | Example | Notes |
|---|---|---|---|
| `APP_URL` | ✅ | `https://mrp.yourdomain.tld` | Public URL; baked into QR payloads. |
| `APP_SECRET` | ✅ | *(paste from §2)* | ≥32 chars. Signs sessions + QR tokens. |
| `BOOTSTRAP_ADMIN_EMAIL` | ✅ on first boot | `you@yourdomain.tld` | Only used if no admin exists. |
| `BOOTSTRAP_ADMIN_PASSWORD` | ✅ on first boot | *(strong password)* | Change in the UI after login. |
| `BOOTSTRAP_ADMIN_NAME` | | `Plant Manager` | Display name. |
| `ADMIN_SESSION_HOURS` | | `8` | Admin cookie TTL. |
| `OPERATOR_SESSION_HOURS` | | `12` | Operator device TTL. |
| `PIN_MAX_ATTEMPTS` | | `5` | Lockout threshold. |
| `PIN_LOCKOUT_MINUTES` | | `15` | Lockout window. |

`DATABASE_URL` and `UPLOAD_DIR` are pre-set inside the image (`file:/data/app.db` and `/data/uploads`). Do not override them unless you really mean it.

6. **Apply**. Unraid pulls the image, starts the container, and the entrypoint:
   1. Creates `/data/uploads` and `/data/backups` if missing.
   2. Runs `prisma migrate deploy`.
   3. Creates the bootstrap admin if no admin exists yet.
   4. Starts Next.js on `:3000`.

7. Check the log (click the container icon → **Logs**). You should see `✓ Ready on http://0.0.0.0:3000`.

8. Point your reverse proxy at `http://<unraid-ip>:3000` with your TLS cert, and browse to `https://mrp.yourdomain.tld/login/admin`.

### Updates

Every push to `main` produces a new `:latest` image at `registry.alwisp.com/<owner>/<repo>`.

- **Manual pull**: Docker tab → container row → **Force update** (Unraid does `docker pull` then recreates the container).
- **Automated**: install the *CA Auto Update Applications* plugin from Community Applications and let it pull fresh `:latest` on a schedule.

The `/data` volume is preserved across recreations. Migrations run automatically on start; if a release adds a new Prisma migration, it will apply once on first boot of the new image.

### Pinning (optional)

The current `docker-build.yml` only publishes `:latest`. If you want immutable tags for rollback, extend the workflow to also push `${{ gitea.sha }}` or a release tag, then point the Unraid **Repository** field at the pinned tag (e.g. `registry.alwisp.com/<owner>/<repo>:v0.4.0`). Rollback becomes a one-field change + **Apply**.

---

## 5. Alternative: Unraid builds locally (`docker build` path)

If you don't want a registry at all, Unraid can build from a local clone of the repo.

1. On Unraid:

   ```bash
   mkdir -p /mnt/user/appdata/mrp-qrcode-src
   cd /mnt/user/appdata/mrp-qrcode-src
   git clone https://<your-gitea-host>/<owner>/<repo>.git .
   docker build -t mrp-qrcode:local .
   ```

2. In the Docker GUI template (§4), set:
   - **Repository**: `mrp-qrcode:local`
   - Everything else identical.

3. To update: `git pull && docker build -t mrp-qrcode:local . && docker restart mrp-qrcode`.

A tiny convenience script lives at `docker/rebuild.sh` if you want to cron it.

---

## 6. Alternative: `docker compose` on the Unraid CLI

The repo also ships a `docker-compose.yml` for users who prefer CLI. This path bypasses the Unraid GUI entirely — state goes to a Docker-managed volume instead of `/mnt/user/appdata/…`, unless you override the mount.

```bash
cp .env.example .env
# edit .env with real APP_URL, APP_SECRET, bootstrap admin creds
docker compose up -d --build
```

To mount `/data` under `/mnt/user/appdata/mrp-qrcode` instead of the named volume, change `docker-compose.yml`:

```yaml
volumes:
  - /mnt/user/appdata/mrp-qrcode:/data
```

and `chown -R 1001:1001 /mnt/user/appdata/mrp-qrcode` first.

---

## 7. Reverse proxy notes

`APP_URL` must match the externally reachable URL — it is embedded in QR code payloads and used for absolute links on traveler cards. If operators scan a card and land on `http://10.x.x.x:3000`, their phone probably cannot reach that IP; always set `APP_URL` to the public subdomain.

Minimal Nginx Proxy Manager config:

- Domain: `mrp.yourdomain.tld`
- Scheme: `http`, Forward host: `<unraid-ip>`, Forward port: `3000`
- Block Common Exploits: on
- Websockets: on (Next.js hot reload uses them in dev; in prod they're unused but harmless)
- SSL: request a Let's Encrypt cert; Force SSL + HTTP/2 on.

---

## 8. Backups

The container does not yet run automatic backups (shipping in step 10 of the build plan). Until then, your Unraid backup strategy should cover:

- `/mnt/user/appdata/mrp-qrcode/app.db` (SQLite file)
- `/mnt/user/appdata/mrp-qrcode/app.db-wal` and `app.db-shm` if present
- `/mnt/user/appdata/mrp-qrcode/uploads/` (STEP / PDF / DXF / SVG assets)

A safe live snapshot of SQLite (works while the app is running):

```bash
docker exec mrp-qrcode sqlite3 /data/app.db \
  ".backup '/data/backups/app-$(date +%F).db'"
```

Cron it nightly via **User Scripts** plugin.

---

## 9. First-login checklist

1. Sign in at `https://mrp.yourdomain.tld/login/admin` with the bootstrap email + password you set in step 4.
2. **Users** → change your own password; create operators (each gets a name + 4-digit PIN).
3. **Machines** → add your shop equipment (NCT punch, press brake, rivet, weld, …).
4. **Operation templates** → pre-author your common recipes so they appear in the operation picker later.
5. **Projects** → create your first project, add assemblies, add parts, upload STEP / drawing / cut files.
6. **Operations** on each part → author steps, reorder, verify QR tokens appear in the table.

Step 4 of the build plan (the operator scan flow) lands next; until then, the QR tokens are visible and tested but not yet scannable to an operator view.

---

## 10. Troubleshooting

| Symptom | Fix |
|---|---|
| `APP_SECRET must be at least 32 chars` on start | Regenerate via `openssl rand -base64 48` and paste into the env var. |
| `EACCES` / permission errors writing to `/data` | `chown -R 1001:1001 /mnt/user/appdata/mrp-qrcode` on the host. |
| Healthcheck failing | `docker logs mrp-qrcode` — usually a missing env var or a broken reverse proxy. |
| Unraid won't pull the image | Run `docker login registry.alwisp.com` on the host with the same user/token the runner uses. Confirm the repo name matches `${{ gitea.repository }}` exactly (case-sensitive). |
| Migrations didn't run | The entrypoint calls `prisma migrate deploy`. Logs will show which migration failed. Don't manually touch `_prisma_migrations`. |
| QR codes link to `localhost` | `APP_URL` was left at default. Update the env var and restart the container. |
| Can't log in after redeploy | `APP_SECRET` changed → every session cookie is invalid. Log in again. |