Add metrics serive ip and addr

Author: jichenjc

config/manager/manager.yaml

@@ -21,6 +21,7 @@ spec:
       containers:
       - args:
         - --leader-elect
+        - --metrics-bind-addr=127.0.0.1:8080
         image: controller:latest
         imagePullPolicy: IfNotPresent
         name: manager