## Summary
- Enable OIDC + API key authentication on zot with anonymous pull preserved
- Enforce tag immutability for version tags
- Adopt commit-SHA-based container image tagging
Details in the [[harden-zot-registry]] Mikado chain (`mise run docs-mikado harden-zot-registry`).
## Test plan
- [ ] Anonymous pull still works
- [ ] Unauthenticated push fails (401)
- [ ] CI container builds pass with new auth and tagging
- [ ] `mise run services-check` passes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/231
## Summary
- Switch navidrome deployment from upstream `deluan/navidrome:0.60.3` back to custom image `registry.ops.eblu.me/blumeops/navidrome:v1.0.2`
- The v1.0.1 image was tagged before the `USER 65534` removal commit, so it still ran as a non-root user that couldn't write to the SQLite data directory
- v1.0.2 is built from current main which includes both the `zlib-dev` build fix and the non-root user removal
## Deployment and Testing
- [ ] Wait for CI to build `navidrome:v1.0.2` image
- [ ] Sync via ArgoCD and verify pod starts without CrashLoopBackOff
- [ ] Verify navidrome UI accessible at https://navidrome.ops.eblu.me
Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/194
## Summary
- Add how-to guide (`docs/how-to/build-container-image.md`) covering the full container build workflow: directory layout, Dagger local builds, mise release task, and common patterns with links to existing containers
- Port navidrome from upstream `deluan/navidrome:0.60.3` to a custom three-stage build (`containers/navidrome/Dockerfile`) using Node + Go + Alpine
- Update navidrome deployment to use `registry.ops.eblu.me/blumeops/navidrome:v1.0.0`
## Deployment and Testing
- [x] `dagger call build --src=. --container-name=navidrome` builds successfully
- [ ] After merge: `mise run container-tag-and-release navidrome v1.0.0`
- [ ] After image published: `argocd app sync navidrome` and verify pod starts
Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/192
