// 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:
  // 1. If host is precise, the request matches this rule if the http host header is equal to Host.
  // 2. If host is a wildcard, then the request matches this rule if the http host header

  // MatchConditions is a list of conditions that must be met for a request to be sent to this
  // webhook. Match conditions filter requests that have already been matched by the rules,
  // namespaceSelector, and objectSelector. An empty list of matchConditions matches all requests.
  // There are a maximum of 64 match conditions allowed.
  //
  // The exact matching logic is (in order):

  // Default to the empty LabelSelector, which matches everything.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector objectSelector = 2;

  // ResourceRules describes what operations on what resources/subresources the ValidatingAdmissionPolicy matches.
  // The policy cares about an operation if it matches _any_ Rule.
  // +listType=atomic
  // +optional

  // +optional
  optional string message = 4;
}

// An empty preferred scheduling term matches all objects with implicit weight 0
// (i.e. it's a no-op). A null preferred scheduling term matches no objects (i.e. is also a no-op).
message PreferredSchedulingTerm {
  // Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100.