Forgejo derives every absolute URL from its single ROOT_URL, so this is what
moves clone URLs, the Google OAuth callback, webhook payload URLs and mail
links onto the new domain. Both redirect URIs are registered on the Google
OAuth client and were verified against Google before the flip — login is
SSO-only, so a mismatch locks everyone out of the UI including out of undoing
it. README documents the probe so the check is repeatable rather than assumed.
git.thermograph.org stays on the same Caddy site block and stays load-bearing:
the registry host baked into image names, the mesh /etc/hosts pins that make
the /v2/* matcher see a mesh source IP, and the runners' registered instance
URL all still use it. Renaming the registry is a separate migration; the docs
now say so where someone would otherwise retire the name as dead weight.
The stack has no auto-deploy, so this takes effect on a manual
`docker stack deploy` from the manager.
The estate had exactly one registered runner, on the desktop. It went offline
at 2026-07-31 16:31Z; for the next 21 hours no PR could satisfy a required
check, no deploy could run, and the 03:00Z ops-cron -- the only backup for both
application databases and for Forgejo -- did not fire. Forgejo queued that
scheduled run rather than dropping it, so it completed on reconnect and nothing
was lost. A longer outage would have meant real gaps.
Three files claimed an "always-on Swarm-hosted runner" existed and that the
estate therefore no longer depended on the desktop. It did not exist: an early
revision of docker-stack.yml ran one as a Docker-in-Docker sidecar and it was
removed. That claim is why a single point of failure sat unnoticed. Corrected
in docker-stack.yml, forgejo/README.md and register-lan-runner.sh.
The new runner is a plain restart:always container, not a Swarm service: a
Swarm-scheduled runner cannot redeploy the Swarm that schedules it, so CI would
be gone exactly when the cluster is what is broken. It runs from
/opt/forgejo-runner rather than in place, because the checkout is reset on
every prod deploy and one `git clean -fdx` there would destroy the
registration.
vps2 runs prod, so the socket mount is bounded rather than assumed benign:
capacity 1, --cpus=2/--memory=4g on job containers, valid_volumes empty so no
job can bind-mount /etc/thermograph.env, and no thermograph network joined.
This defends against accident, not against a hostile workflow author -- stated
plainly in the compose header rather than implied.
The desktop runner stays registered as extra capacity. Nothing may assume it
is up.
forgejo_db has been at 0/1 replicas since 2026-07-29 01:24 UTC. Postgres hit
an invalid data-directory lock file ("could not open file postmaster.pid ...
performing immediate shutdown because data directory lock file is invalid")
and exited 0. With restart_policy.condition=on-failure, Swarm read the zero
status as successful completion, marked the task Complete, and never
rescheduled it.
The forgejo service itself stayed Up and kept serving its homepage, so the
outage presented as every repository page, the whole API and all CI returning
500 with "dial tcp: lookup db on 127.0.0.11:53: no such host" — including the
auth path, which is why API calls reported "user does not exist [uid: 0]"
rather than a database error.
on-failure cannot distinguish "finished successfully" from "shut itself down
and should be restarted", and Postgres exits 0 on several such paths, so it is
the wrong policy for an always-on stateful service.
This is the durable fix; it does not restart the currently stopped task.
