jakman85andClaude Opus 4.8
5fb097d019
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]>
17 lines
887 B
YAML
17 lines
887 B
YAML
---
|
|
apiVersion: v1
|
|
kind: Namespace
|
|
metadata:
|
|
name: headlamp
|
|
labels:
|
|
# Expose Headlamp at headlamp.home.keithjackson.dev via the shared Gateway (docs/09). The
|
|
# *.home.keithjackson.dev wildcard cert already covers this host (httproute.yaml).
|
|
gateway-access: "shared"
|
|
# NOTE: intentionally NOT homelab.keithjackson.dev/app-namespace=true. Headlamp is a PLATFORM
|
|
# admin tool (like Grafana in `monitoring`), so Kyverno does not generate the app default-deny
|
|
# baseline here and the app-scoped auth-mode / egress-class / host-namespace policies do not
|
|
# apply. We still ship an explicit default-deny NetworkPolicy + CiliumNetworkPolicies
|
|
# (networkpolicy.yaml) as defense-in-depth: this pod holds the kube-apiserver egress path, so it
|
|
# is locked down to exactly DNS + apiserver + Keycloak (via the Gateway VIP) egress and
|
|
# Gateway-only ingress.
|