feat: add metrics

charts/cloudflared/templates/common.yaml

@@ -22,6 +22,9 @@ controllers:
           - --protocol
           - {{ .Values.protocol }}
           - --no-autoupdate
+          {{- if .Values.metrics.enabled }}
+          - --metrics 0.0.0.0:20241
+          {{- end }}
           - run
           - --token
           - $(CF_MANAGED_TUNNEL_TOKEN)
@@ -32,10 +35,30 @@ controllers:
                 name: {{ include "secret.name" . }}
                 key: {{ include "secret.key" . }}
         resources:
-        {{- with .Values.resources }}
-        resources:
+          {{- with .Values.resources }}
           {{- toYaml . | nindent 10 }}
-        {{ end }}
+          {{ end }}
+{{- if .Values.metrics.enabled }}
+service:
+  main:
+    controller: main
+    ports:
+      metrics:
+        port: 20241
+        targetPort: 20241
+serviceMonitor:
+  main:
+    selector:
+      matchLabels:
+        app.kubernetes.io/name: {{ include "cloudflared.name" . }}
+        app.kubernetes.io/instance: {{ include "cloudflared.name" . }}
+    serviceName: '{{ include "bjw-s.common.lib.chart.names.fullname" $ }}'
+    endpoints:
+      - port: metrics
+        interval: 30s
+        scrapeTimeout: 10s
+        path: /metrics
+{{- end }}
 {{- end -}}
 {{- $_ := mergeOverwrite .Values (include "cloudflared.hardcodedValues" . | fromYaml) -}}