chore(redis): provide any additional service annotations

Author: duanhongyi

charts/redis/templates/redis-svc.yaml

@@ -3,6 +3,10 @@ apiVersion: v1
 kind: Service
 metadata:
   name: drycc-redis
+  annotations:
+    {{- with .Values.service.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
   labels:
     heritage: drycc
 spec:

charts/redis/values.yaml

@@ -11,6 +11,12 @@ replicas: 1
 # The following parameters are configured only when using an off-cluster Redis instance
 addrs: "" # A list of clusters: "127.0.0.1:7001/1,127.0.0.2:7002/1"
 password: "redis password" # "" == no password
+
+# Service
+service:
+  # Provide any additional service annotations
+  annotations: {}
+
 # GCP PDs and EBS volumes are supported only
 persistence:
   enabled: false # Set to true to enable persistence