feat: add metrics

charts/cloudflared/README.md

@@ -27,6 +27,7 @@ Cloudflared Tunnel
 | Key | Type | Default | Description |
 |-----|------|---------|-------------|
 | image | object | `{"pullPolicy":"IfNotPresent","repository":"cloudflare/cloudflared","tag":"2026.3.0@sha256:6b599ca3e974349ead3286d178da61d291961182ec3fe9c505e1dd02c8ac31b0"}` | Default image |
+| metrics | object | `{"enabled":true}` | Metrics |
 | name | string | `""` | Name override of release |
 | protocol | string | `"auto"` | Protocol - Available values are auto, http2, and quic. |
 | resources | object | `{"requests":{"cpu":"1m","memory":"20Mi"}}` | Default resources |

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 }}
+          {{- with .Values.resources }}
-        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) -}}
 

charts/cloudflared/values.yaml

@@ -4,6 +4,10 @@ name: ""
 # -- Protocol - Available values are auto, http2, and quic.
 protocol: auto
 
+# -- Metrics
+metrics:
+  enabled: true
+
 # -- Secret configuration
 secret: