// +optional
  optional Overhead overhead = 3;

  // scheduling holds the scheduling constraints to ensure that pods running
  // with this RuntimeClass are scheduled to nodes that support it.
  // If scheduling is nil, this RuntimeClass is assumed to be supported by all
  // nodes.
  // +optional
  optional Scheduling scheduling = 4;
}

// RuntimeClassList is a list of RuntimeClass objects.
message RuntimeClassList {

  // with this RuntimeClass are scheduled to nodes that support it.
  // If scheduling is nil, this RuntimeClass is assumed to be supported by all
  // 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

  // +optional
  optional ResourceClassParametersReference parametersRef = 3;

  // Only nodes matching the selector will be considered by the scheduler
  // when trying to find a Node that fits a Pod when that Pod uses
  // a ResourceClaim that has not been allocated yet.
  //
  // Setting this field is optional. If null, all nodes are candidates.
  // +optional
  optional k8s.io.api.core.v1.NodeSelector suitableNodes = 4;
}

  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // nodeTopology defines which nodes have access to the storage
  // for which capacity was reported. If not set, the storage is
  // not accessible from any node in the cluster. If empty, the
  // storage is accessible from all nodes. This field is
  // immutable.
  //
  // +optional

  optional int32 numberMisscheduled = 2;

  // The total number of nodes that should be running the daemon
  // pod (including nodes correctly running the daemon pod).
  // More info: https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
  optional int32 desiredNumberScheduled = 3;

  // numberReady is the number of nodes that should be running the daemon pod and have one

  optional int32 numberMisscheduled = 2;

  // The total number of nodes that should be running the daemon
  // pod (including nodes correctly running the daemon pod).
  // More info: https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
  optional int32 desiredNumberScheduled = 3;

  // The number of nodes that should be running the daemon pod and have one
  // or more of the daemon pod running and ready.

  //
  // For more information about implementing this mode, see
  // https://kubernetes-csi.github.io/docs/ephemeral-local-volumes.html
  // A driver can support one or more of these modes and
  // more modes may be added in the future.
  //
  // This field is immutable.
  //
  // +optional
  repeated string volumeLifecycleModes = 3;

  // In addition, The Pod name takes the form
  // `$(job-name)-$(index)-$(random-string)`,
  // the Pod hostname takes the form `$(job-name)-$(index)`.
  //
  // More completion modes can be added in the future.
  // If the Job controller observes a mode that it doesn't recognize, which
  // is possible during upgrades due to version skew, the controller
  // skips updates for the Job.
  // +optional

  // +listType=set
  // Required.
  repeated string apiGroups = 2;

  // `resources` is a list of matching resources (i.e., lowercase
  // and plural) with, if desired, subresource.  For example, [
  // "services", "nodes/status" ].  This list may not be empty.
  // "*" matches all resources and, if present, must be the only entry.
  // Required.
  // +listType=set
  repeated string resources = 3;

  // +listType=set
  // Required.
  repeated string apiGroups = 2;

  // `resources` is a list of matching resources (i.e., lowercase
  // and plural) with, if desired, subresource.  For example, [
  // "services", "nodes/status" ].  This list may not be empty.
  // "*" matches all resources and, if present, must be the only entry.
  // Required.
  // +listType=set
  repeated string resources = 3;