fix: add lb backend type

Author: ioito

pkg/apis/compute/loadbalancer_const.go

@@ -155,9 +155,10 @@ const (
 
 // TODO raw type
 const (
-	LB_BACKEND_GUEST = "guest"
-	LB_BACKEND_HOST  = "host"
-	LB_BACKEND_IP    = "ip"
+	LB_BACKEND_GUEST   = "guest"
+	LB_BACKEND_HOST    = "host"
+	LB_BACKEND_IP      = "ip"
+	LB_BACKEND_ADDRESS = "address"
 )
 
 const (

pkg/cloudprovider/loadbalancerbackend.go

@@ -18,6 +18,7 @@ type SLoadbalancerBackend struct {
 	Index       int
 	Weight      int
 	Port        int
+	Enabled     bool
 	Id          string
 	Name        string
 	ExternalId  string