//   (might be multiple if there are multiple containers not restricted
  //   by the 'containerName' field) is in the set of specified values.
  // - NotIn: the requirement is satisfied if at least one container exit code
  //   (might be multiple if there are multiple containers not restricted
  //   by the 'containerName' field) is not in the set of specified values.

	return nil
}

func containerReady(pod *corev1.Pod, containerName string) (bool, error) {
	for _, containerStatus := range pod.Status.ContainerStatuses {
		if containerStatus.Name == containerName {
			return containerStatus.Ready, nil
		}
	}
	for _, containerStatus := range pod.Status.InitContainerStatuses {
		if containerStatus.Name == containerName {
			return containerStatus.Ready, nil
		}
	}

- Removes cAdvisor JSON metrics (/stats/container, /stats/<podname>/<containername>, /stats/<namespace>/<podname>/<poduid>/<containername>) from the kubelet. ([#99236](https://github.com/kubernetes/kubernetes/pull/99236), [@pacoxu](https://github.com/pacoxu))

// +structType=atomic
message ResourceFieldSelector {
  // Container name: required for volumes, optional for env vars
  // +optional
  optional string containerName = 1;

  // Required: resource to select
  optional string resource = 2;

  // Specifies the output format of the exposed resources, defaults to "1"
  // +optional

- Added a new feature gate `CheckpointRestore` to enable support to checkpoint containers. If enabled it is possible to checkpoint a container using the newly kubelet API (/checkpoint/{podNamespace}/{podName}/{containerName}). ([#104907](https://github.com/kubernetes/kubernetes/pull/104907), [@adrianreber](https://github.com/adrianreber)) [SIG Node and Testing]

- Kubelet metrics have been changed to buckets. 
  For example the exec/{podNamespace}/{podID}/{containerName} is now just exec. ([#87913](https://github.com/kubernetes/kubernetes/pull/87913), [@cheftako](https://github.com/cheftako)) [SIG Node]