776: add serviceAccountAnnotations (#778)

Author: jgournet

docs/helm/templates/service-account.yaml

@@ -3,3 +3,4 @@ apiVersion: v1
 metadata:
   name: kube-metrics-adapter
   namespace: {{ .Values.namespace }}
+  annotations: {{- toYaml .Values.serviceAccountAnnotations | nindent 4 }}

docs/helm/values.yaml

@@ -107,3 +107,5 @@ affinity: {}
 priorityClassName: ""
 
 podAnnotations: {}
+
+serviceAccountAnnotations: {}