feat(helm): annotations for service account (#8429)

k8s/charts/seaweedfs/templates/shared/service-account.yaml

@@ -3,6 +3,10 @@ kind: ServiceAccount
 metadata:
   name: {{ include "seaweedfs.serviceAccountName" . }}
   namespace: {{ .Release.Namespace }}
+  {{- with .Values.global.serviceAccountAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   labels:
     app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
     helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}

k8s/charts/seaweedfs/values.yaml

@@ -20,6 +20,7 @@ global:
       filerRead: false
   # we will use this serviceAccountName for all ClusterRoles/ClusterRoleBindings
   serviceAccountName: "seaweedfs"
+  serviceAccountAnnotations: {}
   automountServiceAccountToken: true
   certificates:
     duration: 87600h