Compute apply patch using versioned object

pkg/kubectl/apply.go

@@ -17,8 +17,6 @@ limitations under the License.
 package kubectl
 
 import (
-	"encoding/json"
-
 	"k8s.io/kubernetes/pkg/api/annotations"
 	"k8s.io/kubernetes/pkg/api/meta"
 	"k8s.io/kubernetes/pkg/kubectl/resource"
@@ -96,7 +94,7 @@ func GetModifiedConfiguration(info *resource.Info, annotate bool, codec runtime.
 		accessor.SetAnnotations(annots)
 		// TODO: this needs to be abstracted - there should be no assumption that versioned object
 		// can be marshalled to JSON.
-		modified, err = json.Marshal(info.VersionedObject)
+		modified, err = runtime.Encode(codec, info.VersionedObject)
 		if err != nil {
 			return nil, err
 		}
@@ -106,7 +104,7 @@ func GetModifiedConfiguration(info *resource.Info, annotate bool, codec runtime.
 			accessor.SetAnnotations(annots)
 			// TODO: this needs to be abstracted - there should be no assumption that versioned object
 			// can be marshalled to JSON.
-			modified, err = json.Marshal(info.VersionedObject)
+			modified, err = runtime.Encode(codec, info.VersionedObject)
 			if err != nil {
 				return nil, err
 			}

pkg/kubectl/cmd/apply.go

@@ -527,14 +527,11 @@ func (p *patcher) patchSimple(obj runtime.Object, modified []byte, source, names
 		return nil, cmdutil.AddSourceToErr(fmt.Sprintf("retrieving original configuration from:\n%v\nfor:", obj), source, err)
 	}
 
-	// Create the versioned struct from the original from the server for
-	// strategic patch.
-	// TODO: Move all structs in apply to use raw data. Can be done once
-	// builder has a RawResult method which delivers raw data instead of
-	// internal objects.
-	versionedObject, _, err := p.decoder.Decode(current, nil, nil)
+	// Create the versioned struct from the type defined in the restmapping
+	// (which is the API version we'll be submitting the patch to)
+	versionedObject, err := api.Scheme.New(p.mapping.GroupVersionKind)
 	if err != nil {
-		return nil, cmdutil.AddSourceToErr(fmt.Sprintf("converting encoded server-side object back to versioned struct:\n%v\nfor:", obj), source, err)
+		return nil, cmdutil.AddSourceToErr(fmt.Sprintf("getting instance of versioned object for %v:", p.mapping.GroupVersionKind), source, err)
 	}
 
 	// Compute a three way strategic merge patch to send to server.

pkg/kubectl/resource/visitor.go

@@ -81,9 +81,9 @@ type Info struct {
 	// Optional, this is the provided object in a versioned type before defaulting
 	// and conversions into its corresponding internal type. This is useful for
 	// reflecting on user intent which may be lost after defaulting and conversions.
-	VersionedObject interface{}
+	VersionedObject runtime.Object
 	// Optional, this is the most recent value returned by the server if available
-	runtime.Object
+	Object runtime.Object
 	// Optional, this is the most recent resource version the server knows about for
 	// this type of resource. It may not match the resource version of the object,
 	// but if set it should be equal to or newer than the resource version of the