volumeAttachment := obj.(*storage.VolumeAttachment)

	errs := validation.ValidateVolumeAttachment(volumeAttachment)

	// tighten up validation of newly created v1 attachments
	errs = append(errs, validation.ValidateVolumeAttachmentV1(volumeAttachment)...)
	return errs
}

// WarningsOnCreate returns warnings for the creation of the given object.
func (volumeAttachmentStrategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string {

	allErrs = append(allErrs, validateVolumeAttachmentStatus(&volumeAttachment.Status, field.NewPath("status"))...)
	return allErrs
}

// ValidateVolumeAttachmentV1 validates a v1/VolumeAttachment. It contains only extra checks missing in
// ValidateVolumeAttachment.
func ValidateVolumeAttachmentV1(volumeAttachment *storage.VolumeAttachment) field.ErrorList {

			Source: storage.VolumeAttachmentSource{
				PersistentVolumeName: &volumeName,
			},
			NodeName: "mynode",
		},
	}}

	for _, volumeAttachment := range successCases {
		if errs := ValidateVolumeAttachmentV1(&volumeAttachment); len(errs) != 0 {
			t.Errorf("expected success: %+v", errs)
		}
	}

	errorCases := []storage.VolumeAttachment{{
		// Invalid attacher name