// built in to Kubernetes, and have special scaling options on top of those
  // available to normal per-pod metrics using the "pods" source.
  // This is an alpha feature and can be enabled by the HPAContainerMetrics feature flag.
  // +optional
  optional ContainerResourceMetricSource containerResource = 7;

  // external refers to a global metric that is not associated

  // Kubernetes, and have special scaling options on top of those available
  // to normal per-pod metrics using the "pods" source.
  // This is an alpha feature and can be enabled by the HPAContainerMetrics feature flag.
  // +optional
  optional ContainerResourceMetricSource containerResource = 7;

  // external refers to a global metric that is not associated

  // This requires the ProcMountType feature flag to be enabled.
  // +optional
  repeated string allowedProcMountTypes = 21;

  // runtimeClass is the strategy that will dictate the allowable RuntimeClasses for a pod.
  // If this field is omitted, the pod's runtimeClassName field is unrestricted.
  // Enforcement of this field depends on the RuntimeClass feature gate being enabled.
  // +optional

  // Absolute number is calculated from percentage by rounding up. This can not be 0.
  // Defaults to 1. This field is alpha-level and is only honored by servers that enable the
  // MaxUnavailableStatefulSet feature. The field applies to all pods in the range 0 to
  // Replicas-1. That means if there is any unavailable pod in the range 0 to Replicas-1, it
  // will be counted towards MaxUnavailable.
  // +optional

  optional string kind = 2;
}

// Unknown allows api objects with unknown types to be passed-through. This can be used
// to deal with the API objects from a plug-in. Unknown objects still have functioning
// TypeMeta features-- kind, version, etc.
// TODO: Make this object have easy access to field based accessors and settors for
// metadata and field mutatation.
//
// +k8s:deepcopy-gen=true

  // Absolute number is calculated from percentage by rounding up. This can not be 0.
  // Defaults to 1. This field is alpha-level and is only honored by servers that enable the
  // MaxUnavailableStatefulSet feature. The field applies to all pods in the range 0 to
  // Replicas-1. That means if there is any unavailable pod in the range 0 to Replicas-1, it
  // will be counted towards MaxUnavailable.
  // +optional

  // as opaque by clients. Only equality comparison on the value is valid.
  // This is an alpha feature and may change or be removed in the future.
  // The field is populated by the apiserver only if the
  // StorageVersionHash feature gate is enabled.
  // This field will remain optional even if it graduates.
  // +optional
  optional string storageVersionHash = 10;
}

  // so resource intensive daemonsets should take into account that they may
  // cause evictions during disruption.
  // This is an alpha field and requires enabling DaemonSetUpdateSurge feature gate.
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString maxSurge = 2;
}

// Spec to control the desired behavior of rolling update.
message RollingUpdateDeployment {

  // Absolute number is calculated from percentage by rounding up. This can not be 0.
  // Defaults to 1. This field is alpha-level and is only honored by servers that enable the
  // MaxUnavailableStatefulSet feature. The field applies to all pods in the range 0 to
  // Replicas-1. That means if there is any unavailable pod in the range 0 to Replicas-1, it
  // will be counted towards MaxUnavailable.
  // +optional

// a Pod with ResourceClaims that use "WaitForFirstConsumer" allocation
// mode.
//
// This is an alpha type and requires enabling the DynamicResourceAllocation
// feature gate.
message PodSchedulingContext {
  // Standard object metadata
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // Spec describes where resources for the Pod are needed.