feat: add serviceMonitor

Signed-off-by: François BIBRON <[email protected]>

charts/mercure/templates/service.yaml

@@ -18,3 +18,27 @@ spec:
       name: http
   selector:
     {{- include "mercure.selectorLabels" . | nindent 4 }}
+---
+{{- if .Values.metrics.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "mercure.fullname" . }}-metrics
+  labels:
+    {{- include "mercure.labels" . | nindent 4 }}
+    caca: proute
+  {{- with .Values.service.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+
+spec:
+  type: ClusterIP
+  ports:
+    - port: {{ .Values.metrics.port }}
+      targetPort: metrics
+      protocol: TCP
+      name: metrics
+  selector:
+    {{- include "mercure.selectorLabels" . | nindent 4 }}
+{{- end }}

charts/mercure/templates/serviceMonitor.yaml

@@ -0,0 +1,15 @@
+{{- if and .Values.metrics.enabled .Values.metrics.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "mercure.fullname" . }}-metrics
+  labels:
+    app.kubernetes.io/name: {{ include "mercure.name" . }}
+spec:
+  selector:
+    matchLabels:
+      caca: proute
+  endpoints:
+    - port: metrics
+      interval: {{ .Values.metrics.interval }}
+{{- end }}