Merge pull request #54463 from saad-ali/volumeAttachmentAPI

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Introduce new `VolumeAttachment` API Object

**What this PR does / why we need it**:

Introduce a new `VolumeAttachment` API Object. This object will be used by the CSI volume plugin to enable external attachers (see design [here](https://github.com/kubernetes/community/pull/1258). In the future, existing volume plugins can be refactored to use this object as well.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*:  Part of issue https://github.com/kubernetes/features/issues/178

**Special notes for your reviewer**:
None

**Release note**:

```release-note
NONE
```

Kubernetes-commit: ebe8ea73fd1a961779242dfbb629befa153e96fc

vendor/k8s.io/api/batch/v1/BUILD

@@ -20,7 +20,6 @@ go_library(
         "//vendor/github.com/gogo/protobuf/proto:go_default_library",
         "//vendor/k8s.io/api/core/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-        "//vendor/k8s.io/apimachinery/pkg/conversion:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
     ],

vendor/k8s.io/api/batch/v1/doc.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// +k8s:deepcopy-gen=package,register
+// +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
 
 package v1

vendor/k8s.io/api/batch/v1/zz_generated.deepcopy.go

@@ -22,44 +22,9 @@ package v1
 
 import (
 	meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	reflect "reflect"
 )
 
-func init() {
-	SchemeBuilder.Register(RegisterDeepCopies)
-}
-
-// RegisterDeepCopies adds deep-copy functions to the given scheme. Public
-// to allow building arbitrary schemes.
-//
-// Deprecated: deepcopy registration will go away when static deepcopy is fully implemented.
-func RegisterDeepCopies(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedDeepCopyFuncs(
-		conversion.GeneratedDeepCopyFunc{Fn: func(in interface{}, out interface{}, c *conversion.Cloner) error {
-			in.(*Job).DeepCopyInto(out.(*Job))
-			return nil
-		}, InType: reflect.TypeOf(&Job{})},
-		conversion.GeneratedDeepCopyFunc{Fn: func(in interface{}, out interface{}, c *conversion.Cloner) error {
-			in.(*JobCondition).DeepCopyInto(out.(*JobCondition))
-			return nil
-		}, InType: reflect.TypeOf(&JobCondition{})},
-		conversion.GeneratedDeepCopyFunc{Fn: func(in interface{}, out interface{}, c *conversion.Cloner) error {
-			in.(*JobList).DeepCopyInto(out.(*JobList))
-			return nil
-		}, InType: reflect.TypeOf(&JobList{})},
-		conversion.GeneratedDeepCopyFunc{Fn: func(in interface{}, out interface{}, c *conversion.Cloner) error {
-			in.(*JobSpec).DeepCopyInto(out.(*JobSpec))
-			return nil
-		}, InType: reflect.TypeOf(&JobSpec{})},
-		conversion.GeneratedDeepCopyFunc{Fn: func(in interface{}, out interface{}, c *conversion.Cloner) error {
-			in.(*JobStatus).DeepCopyInto(out.(*JobStatus))
-			return nil
-		}, InType: reflect.TypeOf(&JobStatus{})},
-	)
-}
-
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *Job) DeepCopyInto(out *Job) {
 	*out = *in