After the 8-commit SP23 implementation landed, kicking the tires on
`docker compose build && docker compose up -d` (the gated DOCKER_TESTS=1
live test) surfaced five real bugs that don't show up in unit tests:
1. Backend wheel was built from the stub `__init__.py`, not the real
source. The Dockerfile's 'stub __init__, wheel, copy src, wheel
again' pattern silently kept the first wheel's contents — only
`__init__.py` got re-stubbed. The installed package had an empty
`__init__.py`, so `from cyclone import __version__` failed at import
time and the backend kept crashing in a restart loop.
Fix: single `COPY src/` + single `pip wheel`. Comment explains
why the stub trick is gone for good.
2. Backend binds to 127.0.0.1 (intentional — local-only by design,
see CLAUDE.md). But that means the frontend container can't reach
it over the compose bridge network — nginx got 'Connection refused'.
Fix: `CYCLONE_HOST` env var, defaults to 127.0.0.1 (preserves local
posture for non-Docker runs), set to 0.0.0.0 by the docker-compose
backend service. Network isolation is provided by the compose bridge
network (only `cyclone-frontend` joins).
3. Healthcheck probed `/api/healthz` (404 — the route is `/api/health`).
Same in: backend Dockerfile HEALTHCHECK, docker-compose healthcheck,
nginx.conf doesn't have one (frontend proxies through), RUNBOOK.md,
scripts/post-deploy.sh, scripts/smoke.sh.
Fix: `/api/healthz` → `/api/health` everywhere SP23 owns.
4. The auth matrix in `cyclone.auth.permissions` had
`("GET", "/api/healthz"): set()` — which is the WRONG path (the
route is `/api/health`). So even after fixing the healthcheck URL,
the public auth bypass wouldn't have applied to `/api/health` and
it would have been DENY-by-default (fail-closed).
Fix: matrix entry updated to `/api/health`.
5. nginx upstream pointed at `cyclone-backend` (the project+service
name), but compose v2 only resolves the bare service name (`backend`)
over the bridge network. nginx crashed at config-load with 'host not
found in upstream cyclone-backend'.
Fix: `cyclone-backend:8000` → `backend:8000` in nginx.conf + spec
+ plan.
6. Frontend HEALTHCHECK used `http://localhost:8080/`. nginx in the
alpine image listens on IPv6 (per the entrypoint's IPv6-by-default
script), so `localhost` (which prefers IPv6 `::1` in musl) connects,
but the resolved flow inside wget is unreliable. `127.0.0.1` works.
Fix: HEALTHCHECK uses `http://127.0.0.1:8080/`.
Also moves `frontend/Dockerfile` → `Dockerfile.frontend` and
`frontend/nginx.conf` → `nginx.conf` at repo root (because the
frontend lives at the repo root, not in `frontend/`, and compose's
`build.context: .` needs them at the same root as compose.yml).
The frontend's pre-existing `.dockerignore` was empty/unused, so it's
dropped — the root `.dockerignore` covers it.
Adds `docker-compose.override.yml` for local bring-up testing on a
host without sudo. Production uses `/etc/cyclone/secrets/` directly.
Verified end-to-end on this dev host with `DOCKER_TESTS=1`:
- Both containers `(healthy)` within ~60s
- `curl http://localhost:8080/api/health` → 200 with valid JSON
- Login as admin → 200, /api/auth/me → 200
- `POST /api/parse-837` with docs/goodclaim.x12 → 200, batch created
- Full backend test suite: 1014 passed, 9 skipped (prodfiles gitignored)
Eight tests: compose file exists, docker compose config validates, services declare required volumes/restart/healthcheck/ports/depends_on, secrets and volumes tables include the names the operator expects, backend wires CYCLONE_BACKUP_AUTOSTART=1, both Dockerfiles pass . The live bring-up test (compose up + wait for healthy) is gated on DOCKER_TESTS=1 so it skips on bare CI. PyYAML was already a hard dep.