kubectl: Support exposing deployments

hack/test-cmd.sh

@@ -946,6 +946,19 @@ __EOF__
   # TODO: Remove once deployment reaping is implemented
   kubectl delete rc --all "${kube_flags[@]}"
 
+  ### Expose a deployment as a service
+  kubectl create -f examples/extensions/deployment.yaml "${kube_flags[@]}"
+  # Pre-condition: 3 replicas
+  kube::test::get_object_assert 'deployment nginx-deployment' "{{$deployment_replicas}}" '3'
+  # Command
+  kubectl expose deployment/nginx-deployment
+  # Post-condition: service exists and exposes deployment port (80)
+  kube::test::get_object_assert 'service nginx-deployment' "{{$port_field}}" '80'
+  # Clean-up
+  kubectl delete deployment/nginx-deployment service/nginx-deployment "${kube_flags[@]}"
+  # TODO: Remove once deployment reaping is implemented
+  kubectl delete rc --all "${kube_flags[@]}"
+
   ### Expose replication controller as service
   kubectl create -f examples/guestbook/frontend-controller.yaml "${kube_flags[@]}"
   # Pre-condition: 3 replicas

pkg/kubectl/cmd/util/factory.go

@@ -228,6 +228,8 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
 					return "", fmt.Errorf("the service has no pod selector set")
 				}
 				return kubectl.MakeLabels(t.Spec.Selector), nil
+			case *extensions.Deployment:
+				return kubectl.MakeLabels(t.Spec.Selector), nil
 			default:
 				gvk, err := api.Scheme.ObjectKind(object)
 				if err != nil {
@@ -245,6 +247,8 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
 				return getPorts(t.Spec), nil
 			case *api.Service:
 				return getServicePorts(t.Spec), nil
+			case *extensions.Deployment:
+				return getPorts(t.Spec.Template.Spec), nil
 			default:
 				gvk, err := api.Scheme.ObjectKind(object)
 				if err != nil {
@@ -330,7 +334,7 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
 		},
 		CanBeExposed: func(kind unversioned.GroupKind) error {
 			switch kind {
-			case api.Kind("ReplicationController"), api.Kind("Service"), api.Kind("Pod"):
+			case api.Kind("ReplicationController"), api.Kind("Service"), api.Kind("Pod"), extensions.Kind("Deployment"):
 				// nothing to do here
 			default:
 				return fmt.Errorf("cannot expose a %s", kind)