// for more examples of label selectors.
  //
  // Default to the empty LabelSelector, which matches everything.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector namespaceSelector = 5;

  // ObjectSelector decides whether to run the webhook based on if the
  // object has matching labels. objectSelector is evaluated against both

  // items is a list of schema objects.
  repeated RuntimeClass items = 2;
}

// Scheduling specifies the scheduling constraints for nodes supporting a
// RuntimeClass.
message Scheduling {
  // nodeSelector lists labels that must be present on nodes that support this
  // RuntimeClass. Pods using this RuntimeClass can only be scheduled to a
  // node matched by this selector. The RuntimeClass nodeSelector is merged

  // nodes.
  // +optional
  optional Scheduling scheduling = 3;
}

// Scheduling specifies the scheduling constraints for nodes supporting a
// RuntimeClass.
message Scheduling {
  // nodeSelector lists labels that must be present on nodes that support this
  // RuntimeClass. Pods using this RuntimeClass can only be scheduled to a
  // node matched by this selector. The RuntimeClass nodeSelector is merged

  // a network host (e.g. "foo.bar.com") or "wildcard", which is a domain name
  // prefixed with a single wildcard label (e.g. "*.foo.com").
  // The wildcard character '*' must appear by itself as the first DNS label and
  // matches only a single label. You cannot have a wildcard label by itself (e.g. Host == "*").
  // Requests will be matched against the Host field in the following way:

  repeated ResourceClaimTemplate items = 2;
}

// ResourceClaimTemplateSpec contains the metadata and fields for a ResourceClaim.
message ResourceClaimTemplateSpec {
  // ObjectMeta may contain labels and annotations that will be copied into the PVC
  // when creating it. No other fields are allowed and will be rejected during
  // validation.
  // +optional

  // +optional
  optional int32 minReadySeconds = 4;

  // Selector is a label query over pods that should match the replica count.
  // Label keys and values that must match in order to be controlled by this replica set.
  // It must match the pod template's labels.
  // More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 2;

  optional int32 minReadySeconds = 4;

  // Selector is a label query over pods that should match the replica count.
  // If the selector is empty, it is defaulted to the labels present on the pod template.
  // Label keys and values that must match in order to be controlled by this replica set.
  // More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors
  // +optional

  // +optional
  optional int32 minReadySeconds = 4;

  // Selector is a label query over pods that should match the replica count.
  // Label keys and values that must match in order to be controlled by this replica set.
  // It must match the pod template's labels.
  // More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 2;

  optional string group = 1;

  optional string version = 2;

  optional string resource = 3;
}

// A label selector is a label query over a set of resources. The result of matchLabels and
// matchExpressions are ANDed. An empty label selector matches all objects. A null
// label selector matches no objects.
// +structType=atomic
message LabelSelector {

  // items is a list of schema objects.
  repeated RuntimeClass items = 2;
}

// Scheduling specifies the scheduling constraints for nodes supporting a
// RuntimeClass.
message Scheduling {
  // nodeSelector lists labels that must be present on nodes that support this
  // RuntimeClass. Pods using this RuntimeClass can only be scheduled to a
  // node matched by this selector. The RuntimeClass nodeSelector is merged