jakman85andClaude Opus 4.8
3472f1d161
Lets users kubectl into the cluster via Keycloak SSO, mapping realm groups to cluster RBAC. The cert-based admin kubeconfig is untouched and remains a fully independent break-glass path (works even if Keycloak/OIDC is down). - keycloak-realm-import.yaml: new `kubernetes` PUBLIC client + PKCE (S256) — no client secret in any kubeconfig; kubelogin runs auth-code+PKCE to localhost. groups mapper + email/profile/roles scopes. - k8s-oidc-rbac.yaml (NEW, platform-config): ClusterRoleBindings oidc:platform-admins -> cluster-admin, oidc:viewers -> view. - k3s_server role: kube-apiserver-arg OIDC flags (issuer=homelab realm, client-id=kubernetes, username-claim=email + oidc: prefix, groups-claim=groups + oidc: prefix). No oidc-ca-file (nodes reach the issuer via the gateway VIP and trust the public LE cert). Applied via the rolling Restart k3s handler. Keycloak/RBAC land via Flux now; the API-server flags take effect on the next `ansible-playbook playbooks/k3s.yml` rolling restart (deferred until cluster load from the VM-import incident settles). Co-Authored-By: Claude Opus 4.8 <[email protected]>
67 lines
4.2 KiB
YAML
67 lines
4.2 KiB
YAML
---
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# platform-config — the CONFIGS half of the controllers/configs split (flux2 idiomatic).
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#
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# WHY: the `platform` Flux Kustomization installs the CONTROLLERS (HelmReleases) that register CRDs
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# (cert-manager.io, kyverno.io, …). The custom resources BELOW use those CRDs, so applying them in
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# the SAME pass fails atomically ("no matches for kind ClusterIssuer") and blocks the whole platform
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# apply. This Kustomization carries the CRs and is gated `dependsOn: platform` (wait) so the CRDs
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# exist first. See clusters/base/platform-config.yaml + DECISIONS-LOG.
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#
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# Files are referenced IN PLACE via ../platform/... (Flux builds with LoadRestrictionsNone, and the
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# Kyverno policies must stay under platform/kyverno/ for the CI L0 `kyverno test` gate). Build/verify
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# locally with: kubectl kustomize --load-restrictor LoadRestrictionsNone platform-config
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apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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resources:
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# cert-manager: DNS-01 issuers (need cert-manager.io CRDs from the cert-manager HelmRelease)
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- ../platform/cert-manager/clusterissuers.yaml
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# gateway: the Gateway + wildcard Certificate (Certificate needs cert-manager.io; Gateway needs the
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# GatewayClass, which stays in platform/gateway as a controller resource)
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- ../platform/gateway/gateway.yaml
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- ../platform/gateway/wildcard-certificate.yaml
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# kyverno: ClusterPolicies (need kyverno.io CRDs from the Kyverno HelmRelease)
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- ../platform/kyverno/policies/require-default-deny-baseline.yaml
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- ../platform/kyverno/policies/validate-default-deny-shape.yaml
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- ../platform/kyverno/policies/restrict-host-namespaces.yaml
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- ../platform/kyverno/policies/require-egress-class-label.yaml
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- ../platform/kyverno/policies/require-auth-mode-label.yaml
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- ../platform/kyverno/admission/secret-provenance.yaml
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# cilium: L2 LB IP pool + announcement policy (cilium.io CRDs already registered by Cilium)
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- cilium/l2-ip-pool.yaml
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- cilium/l2-announcement-policy.yaml
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# longhorn/external-snapshotter: the driver.longhorn.io VolumeSnapshotClass (needs the
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# snapshot.storage.k8s.io CRDs from platform/external-snapshotter). Enables CSI snapshots +
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# CDI snapshot smart-clone.
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- ../platform/longhorn/volumesnapshotclass.yaml
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# monitoring: PrometheusRule alert rules (need monitoring.coreos.com CRDs from kube-prometheus-stack)
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- ../platform/monitoring/alerts.yaml
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# kubevirt/cdi (Phase 5): the KubeVirt + CDI CRs consume the kubevirt.io / cdi.kubevirt.io CRDs the
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# operators register; the ServiceMonitors/alerts consume monitoring.coreos.com. All CRs of platform-
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# installed CRDs -> applied here, gated dependsOn platform (F-MON1). The dashboard is a plain
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# ConfigMap kept beside them for locality.
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- ../platform/kubevirt/kubevirt-cr.yaml
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- ../platform/kubevirt/cdi-cr.yaml
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# CDI StorageProfiles: snapshot smart-clone for `longhorn`, and RWX/Block + snapshot clone for the
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# `longhorn-vm` virt-default class (consume cdi.kubevirt.io; clears CDIDefaultStorageClassDegraded).
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- ../platform/kubevirt/cdi-storageprofiles.yaml
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- ../platform/kubevirt/servicemonitor.yaml
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- ../platform/kubevirt/alerts.yaml
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- ../platform/kubevirt/dashboard.yaml
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# --- Phase 6 — Identity / SSO (ADR-0014) ---
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# keycloak: the CNPG DB Cluster + Keycloak instance + realm import (CRs of the CNPG / Keycloak
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# operator CRDs installed by platform/cnpg + platform/keycloak) + its ingress + ServiceMonitor.
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# ${KEYCLOAK_REPLICAS} in keycloak-instance.yaml is resolved by this Kustomization's substituteFrom.
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- ../platform/keycloak/postgres-cluster.yaml
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- ../platform/keycloak/keycloak-instance.yaml
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- ../platform/keycloak/keycloak-realm-import.yaml
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- ../platform/keycloak/k8s-oidc-rbac.yaml # maps OIDC groups -> cluster roles (kubectl SSO RBAC)
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- ../platform/keycloak/httproute.yaml
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- ../platform/keycloak/servicemonitor.yaml
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# oauth2-proxy: forward-auth sign-in/callback ingress + ServiceMonitor (Gateway API / monitoring CRs).
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# Re-enabled together with the platform/oauth2-proxy component now Keycloak is live and split-horizon
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# DNS resolves to the Proxmox Gateway VIP (192.168.1.53).
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- ../platform/oauth2-proxy/httproute.yaml
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- ../platform/oauth2-proxy/servicemonitor.yaml
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# monitoring SSO proof: Grafana native-OIDC login ingress (Gateway API CR)
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- ../platform/monitoring/grafana-httproute.yaml
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