[surveyor helm] add support for relabelings and metricRelabelings on serviceMonitor (#830)

Add support for relabelings and metricRelabelings on serviceMonitor

Author: 0xflatheadfred

helm/charts/surveyor/templates/serviceMonitor.yaml

@@ -21,6 +21,14 @@ spec:
   {{- if .Values.serviceMonitor.scrapeTimeout }}
     scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
   {{- end }}
+  {{- with .Values.serviceMonitor.relabelings }}
+    relabelings:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.serviceMonitor.metricRelabelings }}
+    metricRelabelings:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   selector:
     matchLabels:
       {{- include "surveyor.selectorLabels" . | nindent 6 }}

helm/charts/surveyor/values.yaml

@@ -52,6 +52,8 @@ serviceMonitor:
   annotations: {}
   # interval:
   # scrapeTimeout:
+  relabelings: []
+  metricRelabelings: []
 
 ingress:
   enabled: false