Add Prom+Grafana monitoring stack

manifests/monitoring/grafana/datasources.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: grafana-datasources
+  namespace: gitops-system
+data:
+  datasources.yaml: |-
+    apiVersion: 1
+    deleteDatasources:
+      - name: prometheus
+    datasources:
+    - name: prometheus
+      type: prometheus
+      access: proxy
+      url: http://prometheus:9090
+      isDefault: true
+      editable: true
+      version: 1

manifests/monitoring/grafana/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: grafana
+  labels:
+    app: grafana
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: grafana
+  template:
+    metadata:
+      labels:
+        app: grafana
+      annotations:
+        prometheus.io/scrape: 'false'
+    spec:
+      containers:
+        - name: grafana
+          image: "grafana/grafana:7.1.1"
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: http
+              containerPort: 3000
+              protocol: TCP
+          env:
+            - name: GF_PATHS_PROVISIONING
+              value: /etc/grafana/provisioning/
+            - name: GF_AUTH_BASIC_ENABLED
+              value: "false"
+            - name: GF_AUTH_ANONYMOUS_ENABLED
+              value: "true"
+            - name: GF_AUTH_ANONYMOUS_ORG_ROLE
+              value: Admin
+            - name: GF_DEFAULT_THEME
+              value: "Light"
+          volumeMounts:
+            - name: grafana
+              mountPath: /var/lib/grafana
+            - name: dashboards
+              mountPath: /etc/grafana/dashboards
+            - name: datasources
+              mountPath: /etc/grafana/provisioning/datasources
+            - name: providers
+              mountPath: /etc/grafana/provisioning/dashboards
+          resources:
+            {}
+      volumes:
+        - name: grafana
+          emptyDir: {}
+        - name: dashboards
+          configMap:
+            name: grafana-dashboards
+        - name: providers
+          configMap:
+            name: grafana-providers
+        - name: datasources
+          configMap:
+            name: grafana-datasources

manifests/monitoring/grafana/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: gitops-system
+resources:
+  - service.yaml
+  - deployment.yaml
+  - providers.yaml
+  - datasources.yaml
+configMapGenerator:
+  - name: grafana-dashboards
+    files:
+      - dashboards/control-plane.json
+

manifests/monitoring/grafana/providers.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: grafana-providers
+  namespace: gitops-system
+data:
+  providers.yaml: |+
+    apiVersion: 1
+    providers:
+    - name: 'default'
+      orgId: 1
+      folder: ''
+      type: file
+      disableDeletion: false
+      editable: true
+      options:
+        path: /etc/grafana/dashboards

manifests/monitoring/grafana/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: grafana
+  namespace: gitops-system
+  labels:
+    app: grafana
+spec:
+  type: ClusterIP
+  ports:
+    - port: 3000
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    app: grafana