allErrs := validatePodMetadataAndSpec(pod, opts)

	fldPath := field.NewPath("spec")
	// EphemeralContainers can only be set on update using the ephemeralcontainers subresource
	if len(pod.Spec.EphemeralContainers) > 0 {
		allErrs = append(allErrs, field.Forbidden(fldPath.Child("ephemeralContainers"), "cannot be set on create"))
	}
	// A Pod cannot be assigned a Node if there are remaining scheduling gates.

- The `pods/ephemeralcontainers` API now returns and expects a `Pod` object instead of `EphemeralContainers`. This is incompatible with the previous alpha-level API. ([#101034](https://github.com/kubernetes/kubernetes/pull/101034), [@verb](https://github.com/verb)) [SIG Apps, Auth, CLI and Testing]

	// ephemeral container to an existing pod, use the pod's ephemeralcontainers subresource.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=name
	EphemeralContainers []EphemeralContainer `json:"ephemeralContainers,omitempty" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,34,rep,name=ephemeralContainers"`
	// Restart policy for all containers within the pod.

		out.Volumes = nil
	}
	out.InitContainers = *(*[]core.Container)(unsafe.Pointer(&in.InitContainers))
	out.Containers = *(*[]core.Container)(unsafe.Pointer(&in.Containers))
	out.EphemeralContainers = *(*[]core.EphemeralContainer)(unsafe.Pointer(&in.EphemeralContainers))
	out.RestartPolicy = core.RestartPolicy(in.RestartPolicy)
	out.TerminationGracePeriodSeconds = (*int64)(unsafe.Pointer(in.TerminationGracePeriodSeconds))

  // creating a pod, and it cannot be modified by updating the pod spec. In order to add an
  // ephemeral container to an existing pod, use the pod's ephemeralcontainers subresource.
  // +optional
  // +patchMergeKey=name
  // +patchStrategy=merge
  repeated EphemeralContainer ephemeralContainers = 34;

  // Restart policy for all containers within the pod.

	// creating a pod, and it cannot be modified by updating the pod spec. In order to add an
	// ephemeral container to an existing pod, use the pod's ephemeralcontainers subresource.
	// +optional
	EphemeralContainers []EphemeralContainer
	// +optional
	RestartPolicy RestartPolicy
	// Optional duration in seconds the pod needs to terminate gracefully. May be decreased in delete request.

	"ephemeralContainers":           "List of ephemeral containers run in this pod. Ephemeral containers may be run in an existing pod to perform user-initiated actions such as debugging. This list cannot be specified when creating a pod, and it cannot be modified by updating the pod spec. In order to add an ephemeral container to an existing pod, use the pod's ephemeralcontainers subresource.",

- [Ephemeral Containers](https://kubernetes.io/docs/concepts/workloads/pods/ephemeral-containers/) are now generally available (GA). The `EphemeralContainers` feature gate is always enabled and should be removed from `--feature-gates` flag on the kube-apiserver and the kubelet command lines. The `EphemeralContainers` feature gate is [deprecated and scheduled for removal](https://kubernetes.io/docs/reference/using-api/deprecation-policy/#deprecation)  in a future release. ([...

  // ephemeral container to an existing pod, use the pod's ephemeralcontainers subresource.
  // +optional
  // +patchMergeKey=name
  // +patchStrategy=merge
  // +listType=map
  // +listMapKey=name
  repeated EphemeralContainer ephemeralContainers = 34;

  // Restart policy for all containers within the pod.

        "properties": {
          "args": {