# 126 — `plato`

Docker host for [Plato](https://git.hubris.network/dtoro/Plato) — a cross-linked notes workspace (SvelteKit SPA embedded into a Go HTTP server, SQLite-backed). LAN+mesh only, no public ingress.

## At a glance
- **Hostname:** `plato`
- **IP:** `192.168.8.190`
- **Privilege:** privileged
- **Resources:** 2 cores / 2 GiB RAM / 8 GiB rootfs / 1 GiB swap
- **Mounts:** host `/mnt/library/documents/plato` ↔ container `/opt/plato/data`
- **Public hostname:** [`plato.hubris.network`](../infrastructure/dns.md) → [caddy (121)](121-caddy.md) → `192.168.8.190:8080`

## Stack

Single-container deploy. The repo's `Dockerfile` is a three-stage build (Node → Go → distroless/static-debian12:nonroot, ~23 MiB final image). The container exposes `:8080` and writes its SQLite db to `/data`.

- **Checkout:** `/opt/plato/app` (clone of `http://192.168.8.121:3000/dtoro/Plato.git`, using the cached gitea PAT in `/root/.git-credentials` — same pattern as [caddy (121)](121-caddy.md)).
- **Data:** host `/mnt/library/documents/plato` (owned `65532:65532` to match the distroless nonroot UID) bind-mounted into the LXC at `/opt/plato/data`, then bound into the container at `/data` via a `docker-compose.override.yml`:
  ```yaml
  services:
    plato:
      volumes: !override
        - /opt/plato/data:/data
      restart: unless-stopped
  ```
- **`.env`** at `/opt/plato/app/.env` (optional, untracked) — LLM provider keys (`OPENROUTER_API_KEY`, `ANTHROPIC_API_KEY`, etc.) and `PLANTUML_BASE_URL` override. Absent by default; LLM features stay greyed out, PlantUML defaults to the public service.
- **Run / update:** push to `dtoro/Plato` (auto-deploys, see below) or `cd /opt/plato/app && git pull && docker compose up -d --build` for a manual rebuild.

## Auto-deploy

Push to `dtoro/Plato` `main` triggers a rebuild — same Shape B pattern as [Artifacto / mule-image](../infrastructure/auto-deploy.md). Webhook receiver at `/opt/plato-deploy/`, systemd unit `plato-deploy-webhook.service`, port `9799`, gitea hook id 8.

- Receiver: `http://192.168.8.190:9799/deploy`, signed payload (HMAC-SHA256, secret in `/etc/plato-deploy/secret`).
- Logs: `journalctl -u plato-deploy-webhook -f`.
- Health: `curl http://127.0.0.1:9799/health`.
- Manual deploy: `/opt/plato-deploy/deploy.sh`.
- Gitea's `app.ini` `ALLOWED_HOST_LIST` was extended with `192.168.8.190` to allow this delivery.

## Fresh-DB bootstrap workaround

The `schema` constant in `backend/internal/views/store.go` (as of commit `e0542c0`) creates the `views` table without `project_id`, then immediately runs `CREATE UNIQUE INDEX … ON views(project_id, lower(title))`. On a fresh DB this fails (no such column) and Plato crash-loops with `open views store: SQL logic error: no such column: project_id`. `ensureProjectIDColumn()` adds the column on subsequent migrations, but the schema apply happens first.

Until the upstream fix lands, pre-seed the DB before first start:

```
docker compose stop
rm -f /opt/plato/data/plato.db
python3 - <<'PY'
import sqlite3
c = sqlite3.connect('/opt/plato/data/plato.db')
c.executescript("""
CREATE TABLE views (
  id TEXT PRIMARY KEY,
  type TEXT NOT NULL DEFAULT 'document',
  title TEXT NOT NULL,
  aliases TEXT NOT NULL DEFAULT '[]',
  content TEXT NOT NULL DEFAULT '',
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  project_id TEXT NOT NULL DEFAULT ''
);
CREATE UNIQUE INDEX views_project_title_lower ON views(project_id, lower(title));
CREATE INDEX views_project_id ON views(project_id);
""")
c.commit()
PY
chown 65532:65532 /opt/plato/data/plato.db
docker compose up -d
```

Once the column exists, every subsequent boot's `IF NOT EXISTS` clauses no-op. Once Plato is fixed upstream (remove the `CREATE UNIQUE INDEX` line from the boot `schema` constant — `ensureTitleIndexPerProject()` already re-creates it after the migration), this preseed becomes unnecessary.

## Why privileged

Matches the docker-host convention used by [120 mule-images](120-mule-images.md) and [122 arriman](122-arriman.md). Distroless nonroot's UID `65532` on the host bind mount maps directly through; unprivileged would shift the UID by the idmap offset and the container couldn't write `/data` without extra plumbing.

## Caddy

```
plato.hubris.network {
	tls {
		dns ionos {env.IONOS_AUTH_API_TOKEN}
	}
	reverse_proxy 192.168.8.190:8080
}
```

No Authentik forward-auth — Plato has no auth model yet; access control is "be on the LAN or the mesh".

## DNS

dnsmasq entry on [124-authentik](124-authentik.md):
```
address=/plato.hubris.network/192.168.8.175
```

## Related
- [Caddy (121)](121-caddy.md)
- [DNS (split-horizon)](../infrastructure/dns.md)
- [Media permissions](../infrastructure/media-permissions.md)

## Changelog

### 2026-05-13 — auto-deploy wired
Shape B pipeline added (`/opt/plato-deploy/`, port `9799`, gitea hook id 8). `ALLOWED_HOST_LIST` in gitea `app.ini` extended with `192.168.8.190`. See [auto-deploy](../infrastructure/auto-deploy.md#plato).

### 2026-05-13 — container created, Plato deployed
LXC 126 stood up on Debian 12 standard, privileged, docker-ce installed. Plato cloned from `dtoro/Plato`, built and started. Caddy site and dnsmasq split-horizon entry added. Recycled the IP/ID slot freed earlier the same day by the [decommissioned Seafile experiment (LXC 125)](index.md#recently-destroyed-kept-for-archaeology). Hit the [fresh-DB bootstrap bug](#fresh-db-bootstrap-workaround) on first boot; worked around by pre-seeding the SQLite schema.