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vps/DEPLOY.md

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+# VPS deployment
+
+Target: any VPS with Docker + Docker Compose, ports 80/443 free (and 8000
+if you want plain HTTP for very old stereos).
+
+## 1. Lay out the bundle
+
+```bash
+ssh root@YOUR_VPS
+mkdir -p /opt/airstudio/web/ai-radio && cd /opt/airstudio
+# copy from the repo: docker-compose.yml, Dockerfile.streamer, icecast.xml, Caddyfile
+```
+
+## 2. Configure
+
+```bash
+cp .env.vps.example .env
+$EDITOR .env            # set ICECAST_SOURCE_PASSWORD, station name, MQTT
+$EDITOR icecast.xml     # set the 3 passwords + hostname
+$EDITOR Caddyfile       # set your domain
+```
+
+`ICECAST_SOURCE_PASSWORD` in `.env` **must** match `<source-password>` in
+`icecast.xml` — the streamer authenticates with it.
+
+## 3. Firewall
+
+```bash
+ufw allow 22,80,443/tcp
+# optional plain-HTTP fallback for old stereos:
+ufw allow 8000/tcp
+```
+
+## 4. Boot
+
+```bash
+docker compose up -d --build
+docker compose ps        # icecast, radio-streamer, caddy all Up
+docker compose logs -f radio-streamer
+```
+
+Expected streamer log: `live on icecast:8000/ai-radio.mp3` then
+`played <id>.mp3` lines as songs roll.
+
+## 5. Verify
+
+```bash
+# direct icecast:
+curl -sI http://localhost:8000/ai-radio.mp3 | head -1
+# via caddy (after DNS + cert issuance):
+curl -sI https://radio.example.com/ai-radio.mp3 | head -1
+```
+
+In a desktop player: open the URL — you should hear the shipped playlist
+looping. (Empty web root → streamer waits; run the shipper once first.)
+
+## 6. Ship from the generator
+
+On the generator machine:
+
+```bash
+SHIP_REMOTE_TARGET=root@YOUR_VPS:/opt/airstudio/web/ai-radio/ \
+SHIP_SSH_KEY=~/.ssh/id_ed25519_vps \
+LIBRARY_DIR=~/ai-radio/library \
+go run ./cmd/shipper
+```
+
+New songs appear on air within one playlist lap.
+
+## Operations
+
+- **Restart everything:** `docker compose restart`
+- **Update streamer code:** `docker compose build streamer && docker compose up -d streamer`
+- **Admin UI:** `http://<vps>:8000/admin/` (user `admin`, your admin password)
+  — shows listeners, mount status, kick sources.
+- **Logs:** `docker compose logs -f icecast radio-streamer caddy`
+- **MQTT check:** `mosquitto_sub -h BROKER -t airstudio/nowplaying -v`
+
+## Troubleshooting
+
+| Symptom | Cause / fix |
+|---|---|
+| streamer: `icecast rejected source 401` | password mismatch between `.env` and `icecast.xml` |
+| streamer: `no playable files` | shipper hasn't run; check `web/ai-radio/` contents |
+| silence but stream "connected" | stale playlist pointing at missing mp3s — re-run shipper |
+| caddy 502 | icecast container down: `docker compose ps` |
+| no HTTPS cert | DNS not pointing at this VPS yet; check `docker compose logs caddy` |
+| stereo shows garbage titles | very old ID3v1-only player: titles come from ID3v1 — re-transcode (already written by shipper) |