Erich Blume f05e5cccdf Review Grafana: replace Helm upgrade plan with C2 Mikado chain (#258 )

## 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

2026-02-23 15:06:00 -08:00

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Plans

Migration and transition plans for upcoming infrastructure changes. Each plan is a how-to document that captures the full context, steps, and verification criteria for a future execution session.

Plans differ from regular how-to guides in that they describe work that has been designed but not yet executed. Once a plan is completed, it moves to completed.

Plan	Status	Description
migrate-forgejo-from-brew	Planned	Transition Forgejo from Homebrew to source-built binary with LaunchAgent
add-unifi-pulumi-stack	Abandoned	Add Pulumi IaC for UniFi Express 7 (provider bugs — see doc)
upstream-fork-strategy	Planned	Stacked-branch forking strategy for tracking upstream projects
adopt-oidc-provider	Completed	Deploy OIDC identity provider for SSO across services
deploy-authentik	Completed	Deploy Authentik IdP — Mikado chain tracked in `how-to/authentik/`
operationalize-reolink-camera	Planned	Cloud-free NVR with Frigate, object detection, and ring buffer recording to sifaka

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Plans

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