[prometheus-mongodb-exporter] Support custom serviceMonitor scrape metrics path (#6045)

Signed-off-by: LinPr <[email protected]>
Signed-off-by: Lin <[email protected]>
Co-authored-by: zeritti <[email protected]>

Author: LinPr

charts/prometheus-mongodb-exporter/Chart.yaml

@@ -18,4 +18,4 @@ maintainers:
 name: prometheus-mongodb-exporter
 sources:
   - https://github.com/percona/mongodb_exporter
-version: 3.12.1
+version: 3.13.0

charts/prometheus-mongodb-exporter/templates/NOTES.txt

@@ -2,12 +2,12 @@ Verify the application is working by running these commands:
 {{if contains "NodePort" .Values.service.type }}
   NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
   NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "prometheus-mongodb-exporter.fullname" . }})
-  curl http://$NODE_IP:$NODE_PORT/metrics
+  curl http://$NODE_IP:$NODE_PORT{{ .Values.serviceMonitor.telemetryPath }}
 {{- else if contains "LoadBalancer" .Values.service.type }}
   # NOTE: It may take a few minutes for the LoadBalancer IP to be available.
   SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "prometheus-mongodb-exporter.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
-  curl http://$SERVICE_IP:{{ .Values.service.port }}/metrics
+  curl http://$SERVICE_IP:{{ .Values.service.port }}{{ .Values.serviceMonitor.telemetryPath }}
 {{- else if contains "ClusterIP" .Values.service.type }}
   kubectl port-forward service/{{ include "prometheus-mongodb-exporter.fullname" . }} {{ .Values.service.port }}
-  curl http://127.0.0.1:{{ .Values.service.port }}/metrics
+  curl http://127.0.0.1:{{ .Values.service.port }}{{ .Values.serviceMonitor.telemetryPath }}
 {{- end }}

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

@@ -44,6 +44,7 @@ spec:
   {{- end }}
   {{- else }}
     - port: {{ .Values.service.portName }}
+      path: {{ .Values.serviceMonitor.telemetryPath }}
       interval: {{ .Values.serviceMonitor.interval }}
       scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
       {{- with .Values.serviceMonitor.metricRelabelings }}

charts/prometheus-mongodb-exporter/values.yaml

@@ -94,6 +94,7 @@ service:
   type: ClusterIP
   portName: metrics
 
+
 serviceAccount:
   create: true
   # If create is true and name is not set, then a name is generated using the
@@ -133,6 +134,7 @@ serviceMonitor:
   metricRelabelings: []
   scheme: ""
   tlsConfig: {}
+  telemetryPath: /metrics
 
 tolerations: []