feat: add servicemonitor for fluent-operator to helm chart (#1677)

* feat: add servicemonitor for fluent-operator to helm chart

Signed-off-by: Dennis Geiselmann <[email protected]>

* disable service monitor

Signed-off-by: Dennis Geiselmann <[email protected]>

---------

Signed-off-by: Dennis Geiselmann <[email protected]>

Author: dennis-ge

charts/fluent-operator/templates/fluent-operator-deployment.yaml

@@ -110,6 +110,9 @@ spec:
         volumeMounts:
         - name: env
           mountPath: /fluent-operator
+        ports:
+          - containerPort: {{ .Values.operator.service.port }}
+            name: {{ .Values.operator.service.portName }}
       serviceAccountName: fluent-operator
       {{- with .Values.operator.priorityClassName }}
       priorityClassName: {{ . | quote }}

charts/fluent-operator/templates/fluent-operator-service.yaml

@@ -0,0 +1,27 @@
+{{- if .Values.operator.enable }}
+{{- if .Values.operator.service.enable }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: fluent-operator
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app.kubernetes.io/component: operator
+    app.kubernetes.io/name: fluent-operator
+{{- if .Values.operator.service.labels }}
+{{ toYaml .Values.operator.service.labels | indent 4 }}
+{{- end }}
+{{- if .Values.operator.service.annotations }}
+  annotations:
+{{ toYaml .Values.operator.service.annotations | indent 4 }}
+{{- end }}
+spec:
+  type: {{ .Values.operator.service.type }}
+  selector:
+    app.kubernetes.io/component: operator
+    app.kubernetes.io/name: fluent-operator
+  ports:
+    - name: {{ .Values.operator.service.portName }}
+      port:  {{ .Values.operator.service.port }}
+{{- end }}
+{{- end }}

charts/fluent-operator/templates/fluent-operator-servicemonitor.yaml

@@ -0,0 +1,38 @@
+{{- if .Values.operator.enable }}
+{{- if .Values.operator.serviceMonitor.enable }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: fluent-operator
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    app.kubernetes.io/component: operator
+    app.kubernetes.io/name: fluent-operator
+spec:
+  endpoints:
+    - port: {{ .Values.operator.service.portName }}
+      path: {{ .Values.operator.serviceMonitor.path }}
+      interval: {{ .Values.operator.serviceMonitor.interval }}
+      {{- if .Values.operator.serviceMonitor.secure }}
+      scheme: https
+      tlsConfig:
+        {{- toYaml .Values.operator.serviceMonitor.tlsConfig | nindent 8 }}
+      {{- end }}
+      scrapeTimeout: {{ .Values.operator.serviceMonitor.scrapeTimeout }}
+      {{- with .Values.operator.serviceMonitor.relabelings }}
+      relabelings:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.operator.serviceMonitor.metricRelabelings }}
+      metricRelabelings:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: operator
+      app.kubernetes.io/name: fluent-operator
+  namespaceSelector:
+    matchNames:
+    - {{ template "fluent-operator.namespace" . }}
+{{- end }}
+{{- end }}

charts/fluent-operator/values.yaml

@@ -80,6 +80,24 @@ operator:
     []
     # - --watch-namespaces=logging
 
+  service:
+    enable: true
+    type: ClusterIP
+    portName: metrics
+    port: 8080
+    annotations: {}
+    labels: {}
+
+  serviceMonitor:
+    enable: false
+    interval: 30s
+    path: /metrics
+    scrapeTimeout: 10s
+    secure: false
+    tlsConfig: {}
+    relabelings: []
+    metricRelabelings: []
+
 fluentbit:
   # Installs a sub chart carrying the CRDs for the fluent-bit controller. The sub chart is enabled by default.
   crdsEnable: true