Merge pull request #30250 from krousey/kctl_dynamic

Automatic merge from submit-queue

Change kubectl create to use dynamic client

https://github.com/kubernetes/kubernetes/issues/16764 https://github.com/kubernetes/kubernetes/issues/3955

This is a series of changes to allow kubectl create to use discovery-based REST mapping and dynamic clients.

cc @kubernetes/sig-api-machinery

**Release note**:
<!--  Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access) 
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`. 
-->
```release-note
kubectl will no longer do client-side defaulting on create and replace.
```

pkg/kubectl/cmd/get_test.go

@@ -33,6 +33,7 @@ import (
 	apitesting "k8s.io/kubernetes/pkg/api/testing"
 	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/client/restclient"
+	"k8s.io/kubernetes/pkg/client/typed/discovery"
 	"k8s.io/kubernetes/pkg/client/unversioned/fake"
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/runtime/serializer"
@@ -89,6 +90,26 @@ func testData() (*api.PodList, *api.ServiceList, *api.ReplicationControllerList)
 	return pods, svc, rc
 }
 
+func testDynamicResources() []*discovery.APIGroupResources {
+	return []*discovery.APIGroupResources{
+		{
+			Group: unversioned.APIGroup{
+				Versions: []unversioned.GroupVersionForDiscovery{
+					{Version: "v1"},
+				},
+				PreferredVersion: unversioned.GroupVersionForDiscovery{Version: "v1"},
+			},
+			VersionedResources: map[string][]unversioned.APIResource{
+				"v1": {
+					{Name: "pods", Namespaced: true, Kind: "Pod"},
+					{Name: "services", Namespaced: true, Kind: "Service"},
+					{Name: "replicationcontrollers", Namespaced: true, Kind: "ReplicationController"},
+				},
+			},
+		},
+	}
+}
+
 func testComponentStatusData() *api.ComponentStatusList {
 	good := api.ComponentStatus{
 		Conditions: []api.ComponentCondition{