refactor(core): select discovery backend from configured type

.gitignore

@@ -387,4 +387,7 @@ Sessionx.vim
 
 # End of https://www.toptal.com/developers/gitignore/api/go,git,vim,tags,test,emacs,backup,jetbrains
 .idea
-dist/
+dist/
+
+.omo
+.sisyphus

pkg/common/discovery/discoveryregister.go

@@ -46,7 +46,7 @@ func NewDiscoveryRegister(discovery *config.Discovery, watchNames []string) (dis
 	}
 	switch discoveryType {
 	case config.KUBERNETES:
-		return kubernetes.NewConnManager(discovery.Kubernetes.Namespace, nil,
+		return kubernetes.NewConnManager(discovery.Kubernetes.Namespace, watchNames,
 			grpc.WithDefaultCallOptions(
 				grpc.MaxCallSendMsgSize(1024*1024*20),
 			),