The doc listed a nonexistent configmap.yaml instead of the actual raw
config files (grafana.ini, datasources.yaml, provider.yaml) consumed
by kustomization.yaml's configMapGenerator. Added last-reviewed date.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
## Summary
- Delete the old 3-phase Helm chart upgrade plan (predates Mikado system)
- Create C2 Mikado chain with goal card `upgrade-grafana` and two leaf prereqs:
- `kustomize-grafana-deployment` — convert Helm to kustomize manifests
- `build-grafana-container` — home-built Grafana 12.x image (no upstream containers)
- Record first-ever Grafana review: currently at v11.4.0 on Helm chart 8.8.2
- Update service-versions.yaml, how-to index, and plans index
## Service Review Findings
- Grafana is healthy and synced in ArgoCD
- Running v11.4.0, latest upstream is 12.3.3
- Breaking changes for 12.x are low-risk (React panels only, UIDs compliant)
- PVC is disposable — dashboards and datasources are all config-provisioned
## Deployment and Testing
- [ ] No deployment needed — documentation-only change
- [ ] `docs-check-links` passes
- [ ] `docs-check-index` passes
Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/258
