Update the Prometheus example to work directly (#574)

Author: johscheuer

config/manager/manager.yaml

@@ -22,11 +22,32 @@ spec:
         image: controller:latest
         imagePullPolicy: IfNotPresent
         name: manager
+        ports:
+          - name: metrics
+            containerPort: 8080
         resources:
           limits:
             cpu: 500m
             memory: 128Mi
           requests:
             cpu: 500m
             memory: 128Mi
-      terminationGracePeriodSeconds: 10
+        securityContext:
+          readOnlyRootFilesystem: true
+          allowPrivilegeEscalation: false
+          privileged: false
+        volumeMounts:
+          - name: tmp
+            mountPath: /tmp
+          - name: logs
+            mountPath: /var/log/fdb
+      terminationGracePeriodSeconds: 10
+      securityContext:
+        runAsUser: 4059
+        runAsGroup: 4059
+        fsGroup: 4059
+      volumes:
+        - name: tmp
+          emptyDir: {}
+        - name: logs
+          emptyDir: {}

config/prometheus/monitor.yaml

@@ -1,15 +1,12 @@
-
-# Prometheus Monitor Service (Metrics)
 apiVersion: monitoring.coreos.com/v1
-kind: ServiceMonitor
+kind: PodMonitor
 metadata:
-  labels:
-    control-plane: controller-manager
-  name: controller-manager-metrics-monitor
-  namespace: system
+  name: fdb-kubernetes-operator
 spec:
-  endpoints:
-    - path: /metrics
-      port: https
   selector:
-    control-plane: controller-manager
+    matchLabels:
+      app: fdb-kubernetes-operator-controller-manager
+  podMetricsEndpoints:
+    - port: metrics
+  namespaceSelector:
+    any: true

config/samples/deployment.yaml

@@ -129,6 +129,9 @@ spec:
               fieldPath: metadata.namespace
         image: foundationdb/fdb-kubernetes-operator:v0.30.0
         name: manager
+        ports:
+        - containerPort: 8080
+          name: metrics
         resources:
           limits:
             cpu: 500m

config/samples/deployment/manager.yaml

@@ -36,6 +36,9 @@ spec:
             valueFrom:
               fieldRef:
                 fieldPath: metadata.namespace
+        ports:
+          - name: metrics
+            containerPort: 8080
         resources:
           limits:
             cpu: 500m
@@ -57,4 +60,4 @@ spec:
 apiVersion: v1
 kind: ServiceAccount
 metadata:
-  name: controller-manager
+  name: controller-manager

helm/fdb-operator/templates/rbac/rbac_role.yaml

@@ -97,3 +97,15 @@ rules:
   - update
   - patch
   - delete
+- apiGroups:
+  - coordination.k8s.io
+  resources:
+  - leases
+  verbs:
+  - get
+  - list
+  - watch
+  - create
+  - update
+  - patch
+  - delete