Dockerfile, compose.yml, env template, and runbook for the second-brain web container. Targets herbys-dev (10.0.21.207); Traefik (file-provider on 10.0.11.20) reaches the published host port at 10.0.21.207:8080. Image: - python:3.12-slim + the official uv binary copied from the upstream image, plus apt-installed git + ca-certificates so the Gitea VCS pin for embedding-chunking resolves at build time. - uv sync --frozen --no-dev --no-install-project, source copy, then a second uv sync to install the project itself. Two-step so the lock install layer caches independently of source edits. - No ffmpeg / claude CLI / faster-whisper — web role doesn't need any of them. Extraction runs on the dev host's CLI; transcription on the tower. - Drops to uid 1000 (`app`) before CMD. Uvicorn binds 0.0.0.0:8000 inside the container, with --proxy-headers + --forwarded-allow-ips=* so Traefik's X-Forwarded-* survive. compose.yml: - Joins the existing external `homelab` bridge network so the container reaches homelab-postgres:5432 and ollama:11434 by service DNS. - Publishes the uvicorn port at 10.0.21.207:8080 (LAN IP bound, not 0.0.0.0) for Traefik on the separate VM to reach. NO traefik.* labels — file-provider Traefik can't read them. - env_file: .env (0600, gitignored) — SECOND_BRAIN_DATABASE_URL points at homelab-postgres:5432 (containerised), NOT the host's 127.0.0.1:5433 port-map. - restart: unless-stopped. README.md: - Build + bring-up commands. - SECURITY note: no SSO / no CSRF / mutating endpoints — Traefik route must be LAN-only for now (Travis's call). - The two infra steps Travis applies himself, with ready-to-paste snippets: - Knot DNS: brain.herbylab.dev → 10.0.11.20. - Traefik dynamic config: file-provider router + service block. - Verification checklist for both before-and-after-DNS states. Live-verified on herbys-dev: container Up, dashboard returns 200 with real status counts from petalbrain, settings save round-trip works, no tracebacks in logs. |
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| .. | ||
| .env.example | ||
| .gitignore | ||
| compose.yml | ||
| Dockerfile | ||
| README.md | ||
second-brain web app — deploy notes
Target host: herbys-dev (10.0.21.207). Runs the FastAPI + Jinja UI
under docker compose, on the existing homelab bridge network so it
can reach homelab-postgres:5432 and ollama:11434 by service DNS.
Traefik (file-provider VM at 10.0.11.20) handles TLS + the public
hostname brain.herbylab.dev. The compose file does NOT carry
traefik.* labels — file-provider Traefik can't see them.
⚠ Security note (no SSO)
Travis opted not to put this behind Authentik for the initial roll-out. The web app has no authentication, no CSRF, no rate limiting, and it exposes mutating endpoints (accept/reject sources, edit pipeline settings).
→ The Traefik route should be reachable from LAN / trusted networks
only. If you ever publish this past Cloudflare for off-LAN access, gate
it behind the Authentik forward-auth middleware first, or add an
auth_required decorator to the FastAPI app.
1. One-time setup on herbys-dev
cd /opt/projects/homelab/second-brain/deploy/web
# Real env file — paste the lovebug password.
cp .env.example .env
chmod 0600 .env
$EDITOR .env
# SECOND_BRAIN_DATABASE_URL must use host=homelab-postgres (NOT 127.0.0.1).
# Password lives at /opt/backups/postgres-consolidation/credentials.env.
# Build + start. Compose will join the existing external `homelab` net.
docker compose up -d --build
# Confirm it's healthy.
docker compose ps
docker compose logs --tail 50
curl -fsS http://10.0.21.207:8080/dashboard | head
Day-to-day:
docker compose logs -f # tail
docker compose restart # bounce (config reload)
docker compose pull && docker compose up -d # if image were registry-hosted
git pull && docker compose up -d --build # build-on-host update path
2. INFRA STEPS — Travis applies these manually
The compose stack is up once docker compose up -d --build returns.
The public URL at https://brain.herbylab.dev only resolves after
the two steps below land on their respective infra. They live on
machines outside this repo's authority (Knot on the DNS box; Traefik on
10.0.11.20), so this README documents them rather than executing them.
2a. Knot DNS — A record for brain.herbylab.dev
Add this to the herbylab.dev zone file on the Knot host (file path /
include layout matches the existing per-service A records — pick the
spot used for the other *.herbylab.dev services):
brain.herbylab.dev. 300 IN A 10.0.11.20
300s TTL matches the existing convention. Reload Knot:
sudo knotc reload
dig +short brain.herbylab.dev @<knot-host> # should return 10.0.11.20
2b. Traefik file-provider router on 10.0.11.20
Add the snippet below to the Traefik dynamic config (same file the rest
of the *.herbylab.dev services live in — file-provider config picks
up changes without a restart):
http:
routers:
second-brain:
rule: "Host(`brain.herbylab.dev`)"
entryPoints:
- websecure
tls:
certResolver: cloudflare
service: second-brain
# No middleware on day one. If/when SSO lands, prepend the
# authentik forward-auth chain here (see other routers for the
# shape) and remove the LAN restriction.
services:
second-brain:
loadBalancer:
servers:
- url: "http://10.0.21.207:8080"
passHostHeader: true
Verify on the Traefik host:
# Watch for config-reload events:
docker logs traefik --tail 20 -f
# Or hit the API if it's exposed:
curl -fsS http://localhost:8080/api/http/routers/second-brain@file
Once both 2a and 2b are in place, https://brain.herbylab.dev/dashboard
should resolve through Cloudflare → Traefik → 10.0.21.207:8080 → the
second-brain-web container.
3. Verification checklist
After docker compose up -d --build:
| Check | Command | Expect |
|---|---|---|
| Container up | docker compose ps |
second-brain-web is Up, not restarting |
| Startup log clean | docker compose logs --tail 50 |
uvicorn Started server process + Application startup complete, no tracebacks |
| Local-host reachable | curl -fsS http://10.0.21.207:8080/dashboard | head -1 |
<!DOCTYPE html> or similar |
| DB reachable | curl -fsS http://10.0.21.207:8080/dashboard |
dashboard renders status counts (proves the homelab-net path to Postgres) |
| Settings round-trip | open /settings in a browser, save |
green "Saved." flash + new updated_at |
After Travis's 2a + 2b infra steps:
| Check | Command | Expect |
|---|---|---|
| DNS | dig +short brain.herbylab.dev |
10.0.11.20 |
| TLS | curl -fsS https://brain.herbylab.dev/dashboard | head -1 |
dashboard HTML |
| Cert | openssl s_client -connect brain.herbylab.dev:443 -servername brain.herbylab.dev <<<'' |
Cloudflare-issued cert |
4. Follow-ups (not built this round)
- SSO via Authentik. Add the existing forward-auth middleware to the Traefik router once we want this off-LAN. Authentik lives at 10.0.21.207:9000 (same host as this container — different port).
- CSRF. Settings save is an HTMX POST with no token; trivial to forge from a same-origin browser. Acceptable while LAN-restricted.
- Image registry. Currently build-on-host. Push to Gitea's container
registry (
gitea.plantbasedsoutherner.com/petal-power/second-brain-web) when there's a second box that needs to pull the image. - Dev-side extraction systemd timer. Travis is running extraction manually for now; the timer/cron path is deferred.