feat(helm chart): add optional ServiceMonitor for lvmNode service

deploy/helm/charts/templates/lvm-node-servicemonitor.yaml

@@ -0,0 +1,23 @@
+{{- if and ( .Capabilities.APIVersions.Has "monitoring.coreos.com/v1" ) .Values.lvmNode.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "lvmlocalpv.fullname" . }}-node-servicemonitor
+  namespace: {{- .Release.Namespace }}
+  labels:
+    #release: prometheus  # Adjust to match your Prometheus Operator's release name
+    {{- .Values.lvmNode.serviceMonitor.labels | toYaml | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+    {{- include "lvmlocalpv.lvmNode.labels" . | nindent 6 }}
+  namespaceSelector:
+    matchNames:
+      - {{- .Release.Namespace }}
+  endpoints:
+    - port: metrics
+      path: /metrics
+      interval: 30s
+      scrapeTimeout: 10s
+{{- end }}
+

deploy/helm/charts/values.yaml

@@ -64,7 +64,11 @@ lvmNode:
     burst: 0
   # Disable or enable the use of hostNetwork for the lvm node daemonset.
   hostNetwork: false
-
+  serviceMonitor:
+    enabled: false
+    # add labels to the serviceMonitor if you make use of serviceMonitorSelector in prometheus operator
+#   labels:
+#     release: prometheus
 
 # lvmController contains the configurables for
 # the lvm controller deployment