C2(upgrade-grafana): impl kustomize-grafana-deployment

Replace Helm chart with plain kustomize manifests:
- deployment.yaml: Grafana 12.3.3 (home-built) + k8s-sidecar + init container
- configmap.yaml: grafana.ini (Authentik OIDC, datasources, paths)
- service.yaml, pvc.yaml, serviceaccount.yaml, rbac.yaml
- ArgoCD app converted from Helm multi-source to single kustomize source
- Removed Helm values.yaml

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

argocd/apps/grafana.yaml

@@ -1,7 +1,5 @@
 # Grafana - Dashboards & Observability
 #
-# Chart mirrored from https://github.com/grafana/helm-charts to forge
-#
 # Before syncing, create the admin password secret:
 #   kubectl create namespace monitoring
 #   op inject -i argocd/manifests/grafana-config/secret-admin.yaml.tpl | kubectl apply -f -
@@ -12,19 +10,10 @@ metadata:
   namespace: argocd
 spec:
   project: default
-  sources:
+  source:
-    # Helm chart from forge mirror (SSH via egress)
+    repoURL: ssh://forgejo@forge.ops.eblu.me:2222/eblume/blumeops.git
-    - repoURL: ssh://forgejo@forge.ops.eblu.me:2222/eblume/grafana-helm-charts.git
+    targetRevision: main
-      targetRevision: grafana-8.8.2
+    path: argocd/manifests/grafana
-      path: charts/grafana
-      helm:
-        releaseName: grafana
-        valueFiles:
-          - $values/argocd/manifests/grafana/values.yaml
-    # Values from our git repo
-    - repoURL: ssh://forgejo@forge.ops.eblu.me:2222/eblume/blumeops.git
-      targetRevision: main
-      ref: values
   destination:
     server: https://kubernetes.default.svc
     namespace: monitoring

argocd/manifests/grafana/configmap.yaml

@@ -0,0 +1,98 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+data:
+  grafana.ini: |
+    [analytics]
+    check_for_updates = false
+    reporting_enabled = false
+
+    [auth.generic_oauth]
+    allow_sign_up = true
+    api_url = https://authentik.ops.eblu.me/application/o/userinfo/
+    auth_url = https://authentik.ops.eblu.me/application/o/authorize/
+    auto_login = false
+    client_id = grafana
+    client_secret = $__env{GF_AUTH_GENERIC_OAUTH_CLIENT_SECRET}
+    enabled = true
+    name = Authentik
+    role_attribute_path = 'Admin'
+    scopes = openid profile email
+    token_url = https://authentik.ops.eblu.me/application/o/token/
+
+    [log]
+    mode = console
+
+    [paths]
+    data = /var/lib/grafana/
+    logs = /var/log/grafana
+    plugins = /var/lib/grafana/plugins
+    provisioning = /etc/grafana/provisioning
+
+    [security]
+    allow_embedding = false
+
+    [server]
+    root_url = https://grafana.ops.eblu.me
+
+  datasources.yaml: |
+    apiVersion: 1
+    datasources:
+    - access: proxy
+      editable: false
+      isDefault: true
+      name: Prometheus
+      orgId: 1
+      type: prometheus
+      uid: prometheus
+      url: http://prometheus.monitoring.svc.cluster.local:9090
+    - access: proxy
+      editable: false
+      name: Loki
+      orgId: 1
+      type: loki
+      uid: loki
+      url: http://loki.monitoring.svc.cluster.local:3100
+    - access: proxy
+      database: teslamate
+      editable: false
+      jsonData:
+        connMaxLifetime: 14400
+        maxIdleConns: 2
+        maxOpenConns: 5
+        sslmode: disable
+      name: TeslaMate
+      orgId: 1
+      secureJsonData:
+        password: $TESLAMATE_DB_PASSWORD
+      type: postgres
+      uid: TeslaMate
+      url: blumeops-pg-rw.databases.svc.cluster.local:5432
+      user: teslamate
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: grafana-config-dashboards
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+data:
+  provider.yaml: |
+    apiVersion: 1
+    providers:
+      - name: 'sidecarProvider'
+        orgId: 1
+        type: file
+        disableDeletion: false
+        allowUiUpdates: false
+        updateIntervalSeconds: 30
+        options:
+          foldersFromFilesStructure: true
+          path: /tmp/dashboards

argocd/manifests/grafana/deployment.yaml

@@ -0,0 +1,176 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+spec:
+  replicas: 1
+  revisionHistoryLimit: 10
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: grafana
+      app.kubernetes.io/instance: grafana
+  strategy:
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: grafana
+        app.kubernetes.io/instance: grafana
+      annotations:
+        kubectl.kubernetes.io/default-container: grafana
+    spec:
+      automountServiceAccountToken: true
+      serviceAccountName: grafana
+      securityContext:
+        fsGroup: 472
+        runAsGroup: 472
+        runAsNonRoot: true
+        runAsUser: 472
+      initContainers:
+        - name: init-chown-data
+          image: docker.io/library/busybox:1.31.1
+          imagePullPolicy: IfNotPresent
+          command: ["chown", "-R", "472:472", "/var/lib/grafana"]
+          securityContext:
+            runAsNonRoot: false
+            runAsUser: 0
+            capabilities:
+              add: ["CHOWN"]
+            seccompProfile:
+              type: RuntimeDefault
+          volumeMounts:
+            - name: storage
+              mountPath: /var/lib/grafana
+      containers:
+        # Dashboard sidecar - watches ConfigMaps with grafana_dashboard=1
+        - name: grafana-sc-dashboard
+          image: quay.io/kiwigrid/k8s-sidecar:1.28.0
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: METHOD
+              value: WATCH
+            - name: LABEL
+              value: grafana_dashboard
+            - name: LABEL_VALUE
+              value: "1"
+            - name: FOLDER
+              value: /tmp/dashboards
+            - name: RESOURCE
+              value: both
+            - name: FOLDER_ANNOTATION
+              value: grafana_folder
+            - name: REQ_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: grafana-admin
+                  key: admin-user
+            - name: REQ_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: grafana-admin
+                  key: admin-password
+            - name: REQ_URL
+              value: http://localhost:3000/api/admin/provisioning/dashboards/reload
+            - name: REQ_METHOD
+              value: POST
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop: ["ALL"]
+            seccompProfile:
+              type: RuntimeDefault
+          volumeMounts:
+            - name: sc-dashboard-volume
+              mountPath: /tmp/dashboards
+        # Grafana
+        - name: grafana
+          image: registry.ops.eblu.me/blumeops/grafana:v12.3.3-b1ea762
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+            - name: GF_SECURITY_ADMIN_USER
+              valueFrom:
+                secretKeyRef:
+                  name: grafana-admin
+                  key: admin-user
+            - name: GF_SECURITY_ADMIN_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: grafana-admin
+                  key: admin-password
+            - name: GF_PATHS_DATA
+              value: /var/lib/grafana/
+            - name: GF_PATHS_LOGS
+              value: /var/log/grafana
+            - name: GF_PATHS_PLUGINS
+              value: /var/lib/grafana/plugins
+            - name: GF_PATHS_PROVISIONING
+              value: /etc/grafana/provisioning
+          envFrom:
+            - secretRef:
+                name: grafana-teslamate-datasource
+                optional: true
+            - secretRef:
+                name: grafana-authentik-oauth
+                optional: true
+          ports:
+            - name: http
+              containerPort: 3000
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: 3000
+            initialDelaySeconds: 60
+            timeoutSeconds: 30
+            failureThreshold: 10
+          readinessProbe:
+            httpGet:
+              path: /api/health
+              port: 3000
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
+            limits:
+              cpu: 500m
+              memory: 512Mi
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop: ["ALL"]
+            seccompProfile:
+              type: RuntimeDefault
+          volumeMounts:
+            - name: config
+              mountPath: /etc/grafana/grafana.ini
+              subPath: grafana.ini
+            - name: config
+              mountPath: /etc/grafana/provisioning/datasources/datasources.yaml
+              subPath: datasources.yaml
+            - name: storage
+              mountPath: /var/lib/grafana
+            - name: sc-dashboard-volume
+              mountPath: /tmp/dashboards
+            - name: sc-dashboard-provider
+              mountPath: /etc/grafana/provisioning/dashboards/sc-dashboardproviders.yaml
+              subPath: provider.yaml
+      volumes:
+        - name: config
+          configMap:
+            name: grafana
+        - name: storage
+          persistentVolumeClaim:
+            claimName: grafana
+        - name: sc-dashboard-volume
+          emptyDir: {}
+        - name: sc-dashboard-provider
+          configMap:
+            name: grafana-config-dashboards

argocd/manifests/grafana/kustomization.yaml

@@ -0,0 +1,12 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: monitoring
+
+resources:
+  - serviceaccount.yaml
+  - configmap.yaml
+  - pvc.yaml
+  - deployment.yaml
+  - service.yaml
+  - rbac.yaml

argocd/manifests/grafana/pvc.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi

argocd/manifests/grafana/rbac.yaml

@@ -0,0 +1,54 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: grafana-clusterrole
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+rules:
+  - apiGroups: [""]
+    resources: ["configmaps", "secrets"]
+    verbs: ["get", "watch", "list"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: grafana-clusterrolebinding
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: grafana-clusterrole
+subjects:
+  - kind: ServiceAccount
+    name: grafana
+    namespace: monitoring
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+rules: []
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: grafana
+subjects:
+  - kind: ServiceAccount
+    name: grafana
+    namespace: monitoring

argocd/manifests/grafana/service.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+spec:
+  type: ClusterIP
+  ports:
+    - name: http
+      port: 80
+      targetPort: 3000
+      protocol: TCP
+  selector:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana

argocd/manifests/grafana/serviceaccount.yaml

@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: grafana
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/instance: grafana
+automountServiceAccountToken: false

argocd/manifests/grafana/values.yaml

@@ -1,108 +0,0 @@
-# Grafana Helm values for blumeops
-# Chart: https://github.com/grafana/helm-charts/tree/main/charts/grafana
-
-# Admin credentials from pre-created secret
-# Secret must exist before deploying - see grafana-config/README.md
-admin:
-  existingSecret: grafana-admin
-  userKey: admin-user
-  passwordKey: admin-password
-
-# Environment variables from secrets (for datasource credentials)
-envFromSecrets:
-  - name: grafana-teslamate-datasource
-    optional: true
-  - name: grafana-authentik-oauth
-    optional: true
-
-# Persistence with PVC for SQLite database
-persistence:
-  enabled: true
-  type: pvc
-  size: 1Gi
-  accessModes:
-    - ReadWriteOnce
-
-# Grafana configuration via grafana.ini
-grafana.ini:
-  server:
-    root_url: https://grafana.ops.eblu.me
-  security:
-    # Embedding disabled - iframe approach didn't work well for Homepage
-    allow_embedding: false
-  auth.generic_oauth:
-    enabled: true
-    name: Authentik
-    client_id: grafana
-    client_secret: $__env{GF_AUTH_GENERIC_OAUTH_CLIENT_SECRET}
-    scopes: openid profile email
-    auth_url: https://authentik.ops.eblu.me/application/o/authorize/
-    token_url: https://authentik.ops.eblu.me/application/o/token/
-    api_url: https://authentik.ops.eblu.me/application/o/userinfo/
-    allow_sign_up: true
-    role_attribute_path: "'Admin'"
-    auto_login: false
-  analytics:
-    check_for_updates: false
-    reporting_enabled: false
-
-# Datasources - point to k8s-internal services
-datasources:
-  datasources.yaml:
-    apiVersion: 1
-    datasources:
-      - name: Prometheus
-        type: prometheus
-        access: proxy
-        orgId: 1
-        uid: prometheus
-        url: http://prometheus.monitoring.svc.cluster.local:9090
-        isDefault: true
-        editable: false
-      - name: Loki
-        type: loki
-        access: proxy
-        orgId: 1
-        uid: loki
-        url: http://loki.monitoring.svc.cluster.local:3100
-        editable: false
-      - name: TeslaMate
-        type: postgres
-        access: proxy
-        orgId: 1
-        uid: TeslaMate
-        url: blumeops-pg-rw.databases.svc.cluster.local:5432
-        database: teslamate
-        user: teslamate
-        editable: false
-        jsonData:
-          sslmode: disable
-          maxOpenConns: 5
-          maxIdleConns: 2
-          connMaxLifetime: 14400
-        secureJsonData:
-          password: $TESLAMATE_DB_PASSWORD
-
-# Dashboard provisioning - sidecar watches for ConfigMaps with label
-sidecar:
-  dashboards:
-    enabled: true
-    label: grafana_dashboard
-    labelValue: "1"
-    folderAnnotation: grafana_folder
-    provider:
-      foldersFromFilesStructure: true
-
-# Service configuration (Ingress will handle external access)
-service:
-  type: ClusterIP
-  port: 80
-
-# Resource limits for minikube
-resources:
-  requests:
-    memory: "128Mi"
-    cpu: "100m"
-  limits:
-    memory: "512Mi"
-    cpu: "500m"