add service monitor

charts/matrix-hookshot/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: matrix-hookshot
-version: 0.0.3
+version: 0.0.4
 description: Chart for Matrix Hookshot
 keywords:
   - matrix

charts/matrix-hookshot/templates/service-monitor.yaml

@@ -0,0 +1,23 @@
+{{- if and .Values.metrics.enabled .Values.metrics.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: matrix-hookshot
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: matrix-hookshot
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/version: {{ .Chart.AppVersion }}
+    app.kubernetes.io/component: web
+    app.kubernetes.io/part-of: {{ .Release.Name }}
+spec:
+  endpoints:
+    - port: metrics
+      interval: {{ .Values.metrics.serviceMonitor.interval }}
+      scrapeTimeout: {{ .Values.metrics.serviceMonitor.scrapeTimeout }}
+      path: /metrics
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: matrix-hookshot
+      app.kubernetes.io/instance: {{ .Release.Name }}      
+{{- end }}

charts/matrix-hookshot/values.yaml

@@ -33,6 +33,12 @@ ingress:
     className: ""
     annotations: {}
     host: ""
+metrics:
+  enabled: false
+  serviceMonitor:
+    enabled: false
+    interval: 15s
+    scrapeTimeout: 5s
 
 # Reference the following for examples
 # https://matrix-org.github.io/matrix-hookshot/latest/setup/sample-configuration.html