# OpenPXE on Unraid

Three paths from "I have an Unraid box with Gitea on it" to "PXE clients
boot from OpenPXE". Pick the one that matches what you have.

## Path A — build on Unraid, push to Gitea registry, pull by tag

Recommended once you've done it once. Image is published to
`gitea.milesward.dev/mward4/openpxe:0.4.1` (or your equivalent) and
every Unraid template / docker-compose just references the tag.

Pre-flight:

- Gitea has the **Container Registry** enabled (Site Admin → Configuration → set
  `[packages] ENABLED = true` in `app.ini`; default-on in Gitea ≥ 1.18).
- You have a Gitea **personal access token** with `write:package` scope
  (User → Settings → Applications → Generate New Token, check `package`
  read+write).

Run on the Unraid host (Settings → Terminal, or `ssh root@unraid`):

```bash
# Pull just the build script straight from Gitea (no clone needed first):
GITEA_TOKEN=<your-token>
curl -fsSL \
  -H "Authorization: token $GITEA_TOKEN" \
  http://localhost:3000/mward4/OpenPXE/raw/branch/main/scripts/build-and-publish-unraid.sh \
  -o /tmp/openpxe-publish.sh

# Run it. ~6 min on Unraid hardware (native amd64, no QEMU).
chmod +x /tmp/openpxe-publish.sh
GITEA_TOKEN=$GITEA_TOKEN /tmp/openpxe-publish.sh
```

What it does:

1. Shallow-clones the repo from local Gitea (no Cloudflare, no LAN issues).
2. Runs `scripts/fetch-ipxe.sh` to grab the iPXE binaries from the official
   release URLs.
3. `docker build` against `deploy/docker/Dockerfile`.
4. `docker login gitea.milesward.dev:3000` using a temp `DOCKER_CONFIG`
   so the credential never lands in your real `~/.docker/config.json`.
5. `docker push` both `:0.4.1` and `:latest`.
6. Logout, scrub the temp config, delete the workspace.

After it finishes, in Unraid → Docker → Add Container, set:

| Field      | Value                                           |
|------------|-------------------------------------------------|
| Repository | `gitea.milesward.dev/mward4/openpxe:0.4.1`     |
| Network    | `host`                                          |
| Extra args | `--cap-add=NET_BIND_SERVICE`                    |

Volume mounts (paths inside container in **bold**):

- **`/var/lib/openpxe/isos`** ↔ `/mnt/user/appdata/openpxe/isos`
- **`/var/lib/openpxe/work`** ↔ `/mnt/user/appdata/openpxe/work`
- **`/var/lib/openpxe/smb`**  ↔ `/mnt/user/appdata/openpxe/smb`

Or skip the manual UI by dropping `openpxe.xml` (in this directory)
into `/boot/config/plugins/dockerMan/templates-user/` and Unraid will
list it as a one-click template.

Web UI: `http://<unraid-ip>/`.

## Path B — `docker-compose up` directly from cloned repo

Skip the registry entirely. Useful for "hack on it locally" iterations.

```bash
ssh root@unraid
cd /mnt/user/appdata
git clone http://localhost:3000/mward4/OpenPXE.git openpxe-src
cd openpxe-src
bash scripts/fetch-ipxe.sh
docker compose -f docker-compose.yml up -d --build openpxe
```

The bundled `docker-compose.yml` already wires host networking, the
right cap_add, and bind-mounts to `./data/`. Edit those bind-mount
paths if you want them under `/mnt/user/appdata/openpxe/`.

## Path C — `docker load` from a tarball I built off-box

For when the build host can reach Unraid but Unraid can't reach the
internet. Build the image somewhere with a cargo + buildx environment,
then:

```bash
# On the build host
docker save openpxe:0.4.1 | gzip > openpxe-0.4.1.tar.gz

# Transfer (rsync / scp / SMB / ZFS-replicate / sneakernet)
scp openpxe-0.4.1.tar.gz root@unraid:/tmp/

# On Unraid
gunzip -c /tmp/openpxe-0.4.1.tar.gz | docker load
docker tag openpxe:0.4.1 gitea.milesward.dev/mward4/openpxe:0.4.1
```

If you want it pullable by tag from other Unraid templates, push to
Gitea afterward (path A's last step).

## Verifying it works

Once the container is up, from any LAN host:

```bash
# Should return 'ok'
curl -s http://<unraid-ip>/healthz
# Should return 'ready' if iPXE binaries are bundled
curl -s http://<unraid-ip>/readyz
```

Web UI: `http://<unraid-ip>/`. The Dashboard's top-bar pill should
read `● ready`. Upload an ISO, boot a test machine PXE → it should
show up in the Dashboard's "Recent connections" table within seconds.

## Common gotchas

- **DHCP collision.** Don't run two PXE _proxies_ on the same broadcast
  domain. OpenPXE runs in proxy mode and never offers IP leases, so
  it coexists with whatever DHCP server is already on the network —
  but two proxies racing each other will whichever-wins at random.
- **Host networking only.** Bridge mode containers don't see broadcast
  DHCP. There's no working bridge-mode config for a PXE server.
- **Permissions on `/mnt/user/appdata/openpxe`.** The container runs
  as uid 10001 by default. The entrypoint chowns the bind mounts to
  10001 on first start, but only if the container itself has root —
  `--user=root` isn't needed; the multi-stage Dockerfile starts as
  root, fixes perms, then drops to openpxe via gosu.
- **NFS mounts in the Storage tab.** Mounting NFS inside the container
  needs `CAP_SYS_ADMIN`. To enable, add `--cap-add=SYS_ADMIN` to the
  Unraid template's "Extra args" — but understand that's a meaningful
  capability, comparable to `--privileged`. Skip it if you only need
  uploads.
