feat(monitoring): Add ServiceMonitor for prom scrapping

public/index.yaml

@@ -21,7 +21,7 @@ entries:
               url: https://github.com/8gears/n8n-helm-chart/pull/46
     apiVersion: v2
     appVersion: 1.5.1
-    created: "2023-09-09T09:54:59.734799+02:00"
+    created: "2023-09-09T23:37:10.171019+02:00"
     dependencies:
     - condition: redis.enabled
       name: redis
@@ -30,7 +30,7 @@ entries:
     description: A Kubernetes Helm chart for n8n a free and open fair-code licensed
       node based Workflow Automation Tool. Easily automate tasks across different
       services.
-    digest: 7887b83c3579802af25f813331d955664f5174c792c919d46dddb410224ba1c7
+    digest: 22c36c8aacac074abef82c821b03f2f78b855fac71e15fbe4df9e1b0937ab98a
     home: https://github.com/8gears/n8n-helm-chart
     icon: https://avatars1.githubusercontent.com/u/45487711?s=200&v=4
     keywords:
@@ -63,7 +63,7 @@ entries:
         aka @swarnat\"\n      url: https://github.com/swarnat\n"
     apiVersion: v2
     appVersion: 0.217.1
-    created: "2023-09-09T09:54:59.710178+02:00"
+    created: "2023-09-09T23:37:10.143976+02:00"
     dependencies:
     - condition: redis.enabled
       name: redis
@@ -92,4 +92,4 @@ entries:
     urls:
     - https://elium.github.io/n8n-helm-chart/n8n-0.10.0.tgz
     version: 0.10.0
-generated: "2023-09-09T09:54:59.699898+02:00"
+generated: "2023-09-09T23:37:10.138387+02:00"

templates/_helpers.tpl

@@ -96,6 +96,10 @@ Selector labels
 - name: "N8N_DISABLE_PRODUCTION_MAIN_PROCESS"
   value: "true"
 {{ end }}
+{{- if .Values.metrics.enabled }}
+- name: "N8N_METRICS"
+  value: "true"
+{{ end }}
 {{- end }}
 
 {{/*

templates/servicemonitor.yaml

@@ -0,0 +1,23 @@
+{{- if .Values.metrics.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  release: {{ .Values.metrics.namespace | default 'monitoring' }}
+  name: {{ include "n8n.fullname" . }}
+  labels:
+    {{- include "n8n.labels" . | nindent 4 }}
+  {{- with .Values.service.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  endpoints:
+    - path: /metrics
+      port: http
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      {{- include "n8n.selectorLabels" . | nindent 6 }}
+{{- end }}

values.yaml

@@ -324,3 +324,7 @@ redis:
       enabled: true
       existingClaim: ""
       size: 2Gi
+
+metrics:
+  enabled: false
+  namespace: infra-prometheus