[prometheus-postgres-exporter] Add ability to customize API version for service monitor (#5972)

Signed-off-by: Akshay Rohatgi <[email protected]>
Signed-off-by: Akshay Rohatgi <[email protected]>
Co-authored-by: MH <[email protected]>

Author: Akshay-Rohatgi

charts/prometheus-postgres-exporter/Chart.yaml

@@ -3,7 +3,7 @@ apiVersion: v2
 appVersion: v0.17.1
 description: A Helm chart for prometheus postgres-exporter
 name: prometheus-postgres-exporter
-version: 7.0.1
+version: 7.1.1
 home: https://github.com/prometheus-community/postgres_exporter
 sources:
   - https://github.com/prometheus-community/postgres_exporter

charts/prometheus-postgres-exporter/templates/servicemonitor.yaml

@@ -1,5 +1,5 @@
 {{- if .Values.serviceMonitor.enabled }}
-apiVersion: monitoring.coreos.com/v1
+apiVersion: {{ .Values.serviceMonitor.apiVersion | default "monitoring.coreos.com/v1" }}
 kind: ServiceMonitor
 metadata:
 {{- if .Values.serviceMonitor.labels }}

charts/prometheus-postgres-exporter/values.yaml

@@ -29,6 +29,8 @@ automountServiceAccountToken: false
 serviceMonitor:
   # When set true then use a ServiceMonitor to configure scraping
   enabled: false
+  # Specify the API version for the ServiceMonitor
+  apiVersion: "monitoring.coreos.com/v1"
   # Set the namespace the ServiceMonitor should be deployed
   # namespace: monitoring
   # Set how frequently Prometheus should scrape