Add serviceMonitor.labels parameter

Signed-off-by: Eddie Torres <[email protected]>

charts/aws-ebs-csi-driver/templates/metrics.yaml

@@ -4,7 +4,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: ebs-csi-controller
-  namespace: kube-system
+  namespace: {{ .Release.Namespace }}
   labels:
     app: ebs-csi-controller
 spec:
@@ -21,17 +21,19 @@ apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   name: ebs-csi-controller
-  namespace: kube-system
+  namespace: {{ .Release.Namespace }}
   labels:
     app: ebs-csi-controller
-    release: prometheus
+    {{- if .Values.controller.serviceMonitor.labels }}
+    {{- toYaml .Values.controller.serviceMonitor.labels | nindent 4 }}
+    {{- end }}
 spec:
   selector:
     matchLabels:
       app: ebs-csi-controller
   namespaceSelector:
     matchNames:
-      - kube-system
+      - {{ .Release.Namespace }}
   endpoints:
     - targetPort: 3301
       path: /metrics

charts/aws-ebs-csi-driver/values.yaml

@@ -140,6 +140,10 @@ controller:
   # The default is empty string, which means metrics endpoint is disabled.
   # ---
   enableMetrics: false
+  serviceMonitor:
+    # Additional labels for ServiceMonitor object
+    labels:
+      release: prometheus
   # If set to true, AWS API call metrics will be exported to the following 
   # TCP endpoint: "0.0.0.0:3301"
   # ---