Remove the DinD-based k8s runner and add a native systemd Forgejo
Actions runner on ringtail for building containers with nix build
and pushing via skopeo. The runner uses the NixOS
services.gitea-actions-runner module with host execution (no
containers), and Ansible provisions the registration token from
1Password. Adds a new build-container-nix workflow for -nix- tags
and updates mise tasks to support both Dockerfile and Nix builds.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
## Summary
- Replace Docker with Buildah for container image builds
- No Docker socket required - buildah is daemonless
- Cleaner security model (no privileged containers or socket mounting)
- Remove Docker-related security context from deployment
## Changes
- Update Dockerfile to install buildah/podman instead of docker-cli
- Configure buildah storage with overlay driver and fuse-overlayfs
- Update composite action to use `buildah bud` and `buildah push`
- Add `imagePullPolicy: Always` to ensure fresh image pulls
- Update test workflow to verify buildah/podman
## Testing
- [ ] Runner pod starts successfully
- [ ] Buildah is available in runner
- [ ] Test workflow verifies buildah/podman versions
- [ ] Container build workflow builds and pushes to zot
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Reviewed-on: https://forge.tail8d86e.ts.net/eblume/blumeops/pulls/51
