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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