The runner's job images were built by ansible into localhost/ only, so the
nightly CI prune deleted them and every idle stretch ended with CI failing in
under a second on `docker pull localhost/gitea-ci:latest` until someone re-ran
the role and waited out a rebuild. The previous commit moved them to the Gitea
registry; this moves the *build* off the deploy path entirely.
- .gitea/workflows/ci-images.yml builds files/Containerfile.* and pushes to
git.debyl.io/gitbot/. Per-image change detection, so an ESP-IDF pin bump does
not rebuild the other two; weekly schedule for base-image updates; a
workflow_dispatch selector. PRs build under a throwaway :pr-<n> tag and drop
it -- the build lands in the live runner's store, and act_runner will not
re-pull a tag it already has, so a PR using the real tag would hand every
later job on this host an unmerged image.
- The Containerfiles stop being ansible templates: their version vars are now
--build-arg, read by the workflow out of the same defaults/main.yml the role
interpolates, so CI and ansible build the same bytes from one set of pins.
- LABEL io.debyl.ci-base moves into each Containerfile so neither builder can
forget the prune exemption; the workflow re-checks it before pushing.
- roles/gitea-actions pulls instead of building. gitea_ci_build_local=true
restores the local build+push for seeding a cold registry or when CI is
down -- the workflow that builds gitea-ci runs in gitea-ci.
- Lint .gitea/ alongside ansible/, and document the flow in the role README.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>