adding optional to expose tetragon-operator metrics

Signed-off-by: hungran <[email protected]>

install/kubernetes/templates/operator_deployment.yaml

@@ -33,6 +33,12 @@ spec:
           capabilities:
             drop:
               - "ALL"
+        {{- if .Values.tetragonOperator.metrics.enabled }}
+        ports:
+          - containerPort: {{ .Values.tetragonOperator.metrics.port }}
+            name: metrics
+            protocol: TCP
+        {{- end }}
         livenessProbe:
           httpGet:
             path: /healthz

install/kubernetes/templates/operator_service.yaml

@@ -0,0 +1,19 @@
+{{- if .Values.tetragonOperator.metrics.enabled -}}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  namespace: {{ .Release.Namespace }}
+  name: {{ .Release.Name }}-operator-metrics
+  labels: 
+    {{- include "tetragon-operator.labels" . | nindent 4 }}
+  spec:
+    ports:
+      - name: metrics
+        port: {{ .Values.tetragonOperator.metrics.port }}
+        targetPort: {{ .Values.tetragonOperator.metrics.port }}
+        protocol: TCP
+    selector:
+      {{- include "tetragon-operator.selectorLabels" . | nindent 6 }}
+    type: ClusterIP
+{{- end }}

install/kubernetes/values.yaml

@@ -171,6 +171,11 @@ tetragonOperator:
     # -- Enables the PodInfo CRD and the controller that reconciles PodInfo
     # custom resources.
     enabled: false
+  # -- Enables the Tetragon Operator metrics.
+  metrics:
+    enabled: true
+    # -- The port at which to expose metrics.
+    port: 2113
 export:
   # "stdout". "" to disable.
   mode: "stdout"