charts: add needed perms if metricsCollector is enabled

Author: linuxmaniac

charts/descheduler/templates/clusterrole.yaml

@@ -36,4 +36,9 @@ rules:
   resourceNames: ["{{ .Values.leaderElection.resourceName | default "descheduler" }}"]
   verbs: ["get", "patch", "delete"]
 {{- end }}
+{{- if and .Values.deschedulerPolicy .Values.deschedulerPolicy.metricsCollector .Values.deschedulerPolicy.metricsCollector.enabled }}
+- apiGroups: ["metrics.k8s.io"]
+  resources: ["pods", "nodes"]
+  verbs: ["get", "list"]
+{{- end }}
 {{- end -}}

charts/descheduler/values.yaml

@@ -96,6 +96,8 @@ deschedulerPolicy:
   # nodeSelector: "key1=value1,key2=value2"
   # maxNoOfPodsToEvictPerNode: 10
   # maxNoOfPodsToEvictPerNamespace: 10
+  # metricsCollector:
+  #   enabled: true
   # ignorePvcPods: true
   # evictLocalStoragePods: true
   # evictDaemonSetPods: true