Files
home-network-k3s-impl/platform/headlamp/helmrepository.yaml
jakman85andClaude Opus 4.8 5fb097d019 platform: deploy Headlamp dashboard with Keycloak OIDC + per-user RBAC
Add Headlamp (kubernetes-sigs/headlamp Helm chart) at
headlamp.home.keithjackson.dev with native Keycloak OIDC login and PER-USER
RBAC: Headlamp forwards each user's id_token to the k3s apiserver, so the
existing oidc:* group bindings (platform-admins->cluster-admin, viewers->view)
apply per user. The ServiceAccount is deliberately NOT bound to cluster-admin
(clusterRoleBinding.create=false), since user requests ride the forwarded token.

Key integration nuance: the apiserver is configured oidc-client-id=kubernetes,
so it only accepts tokens whose aud contains `kubernetes`. The new `headlamp`
Keycloak client carries an oidc-audience-mapper (included.client.audience=
kubernetes) so tokens carry aud=[headlamp, kubernetes] -- accepted by both
Headlamp's own verifier and the apiserver, leaving the apiserver config
untouched. A groups mapper emits the `groups` claim the apiserver maps to RBAC.

- platform/headlamp: namespace, HelmRepository/HelmRelease, SOPS OIDC secret
  (externalSecret envFrom), default-deny NetworkPolicy + Cilium ingress
  (gateway)/egress (apiserver+Keycloak) policies, README. Wired into
  platform/kustomization.yaml (platform tier).
- platform/headlamp/httproute.yaml wired into platform-config (Gateway API CR,
  dependsOn platform), modeled on grafana-httproute.
- keycloak-realm-import: add `headlamp` confidential client + groups/audience
  mappers + HEADLAMP_CLIENT_SECRET placeholder. Client also created LIVE via
  kcadm (realm import no-ops on the existing realm).
- keycloak-realm-clients.sops: add headlamp-client-secret (mirrored into
  headlamp-oidc-credentials clientSecret). Both encrypted to the repo age key.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-08-28 11:44:33 -05:00

12 lines
379 B
YAML

---
# HelmRepository for the official Headlamp chart (kubernetes-sigs/headlamp). Renovate maintains the
# pinned chart version in helmrelease.yaml. Same Flux source pattern as platform/monitoring.
apiVersion: source.toolkit.fluxcd.io/v1
kind: HelmRepository
metadata:
name: headlamp
namespace: headlamp
spec:
interval: 1h
url: https://kubernetes-sigs.github.io/headlamp/