Three workflows that connect the services from episodes 1 to 7: a Forgejo push
becomes a phone notification, an Uptime Kuma outage writes and closes its own
incident page in Outline, and a nightly schedule writes one ops digest.
The point of the episode is the split between webhooks and the editor. Caddy
publishes only the webhook path prefixes under the n8n host and answers an
empty 404 for everything else, so the editor stays reachable over the mesh from
episode 5 and never gets a login page on the open internet.
Also in here:
- n8n pinned to a version instead of :latest, after episode 7 showed that every
restore is otherwise an upgrade
- the 2.x environment that actually matters, including the file access
restriction pointed at one directory rather than the root
- the Forgejo allowed host list, without which a webhook to a private address
is silently dropped
- fixed subnets for both docker networks, after a restore handed them out in
the other order and quietly broke the mesh route
- a note on the encryption key: it decrypts every stored credential, it lives in
the n8n volume, and a backup without it restores a hub that cannot log in
Claude-Session: https://claude.ai/code/session_01Md8yhBKp5e7xMmCyxoEgdm
- compose: SSO_ENABLED, SSO_AUTHORITY and the two client credentials, with the
undocumented redirect path written down where people will look for it
- .env.example: was referenced by the README since episode 1 but never actually
committed, so a fresh clone could not follow the quickstart
- README: the four steps, plus the debugging notes that cost the most time
(no SSO line at startup, 404 on routes without query parameters, HEAD on the
discovery endpoint, and the three-step member join)
- HARDENING: never copy db.sqlite3 alone while the container runs. WAL mode
keeps recent writes in a side file, so that backup silently misses data
