gitops: observability stack (Loki/Promtail/Grafana), Grafana Ingress, Argo multi-source

- Add gitops/observability umbrella chart with vendored Helm deps
- Grafana Ingress: Traefik, letsencrypt-prod, grafana.k8s.selair.it + root_url
- Argo Application: spec.sources (onelab + onelab-obs)
- OneLab: configuration secret override, compliance/LDAP values, logs.path /logs
- Docs: OBSERVABILITY, BOOTSTRAP, README, instance-overrides example

Made-with: Cursor
This commit is contained in:
timotheereausanofi
2026-03-20 11:10:06 +01:00
parent 9cb1b10d6c
commit b91c35c410
18 changed files with 360 additions and 14 deletions

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# OneLab observability (Helm umbrella)
Loki + Promtail + Grafana dependencies are pinned in `Chart.lock`; packaged charts live in `charts/*.tgz`.
Deployed by Argo CD as the second `sources` entry in `gitops/argocd/application.yaml` with **`releaseName: onelab-obs`**.
See [../docs/OBSERVABILITY.md](../docs/OBSERVABILITY.md) for operations and security notes.