// Warning messages describe a problem the client making the API request should correct or be aware of.
  // Limit warnings to 120 characters if possible.
  // Warnings over 256 characters and large numbers of warnings may be truncated.
  // +optional
  repeated string warnings = 7;
}

// AdmissionReview describes an admission review request/response.
message AdmissionReview {

  // the list automatically by PodDisruptionBudget controller after some time.
  // If everything goes smooth this map should be empty for the most of the time.
  // Large number of entries in the map may indicate problems with pod deletions.
  // +optional
  map<string, k8s.io.apimachinery.pkg.apis.meta.v1.Time> disruptedPods = 2;

  // Number of pod disruptions that are currently allowed.

// corresponding increase or decrease in Mantissa) such that:
//
// - No precision is lost
// - No fractional digits will be emitted
// - The exponent (or suffix) is as large as possible.
//
// The sign will be omitted unless the number is negative.
//
// Examples:
//
// - 1.5 will be serialized as "1500m"
// - 1.5Gi will be serialized as "1536Mi"
//

  // allocation is to be attempted.
  // +optional
  optional string selectedNode = 1;

  // PotentialNodes lists nodes where the Pod might be able to run.
  //
  // The size of this field is limited to 128. This is large enough for
  // many clusters. Larger clusters may need more attempts to find a node
  // that suits all pending resources. This may get increased in the
  // future, but not reduced.
  //
  // +listType=set

In the end, [after evaluation](https://docs.google.com/document/d/1c2123cKuYsBDpIon9FFdctWTUIMFweSjgwG7r8l3818/edit), the decision was to move forward with a Rust implementation.
This offered performance benefits that were too large to leave on the table, as well as opportunities to tune to our specific needs.

## Configuration protocol

Ztunnel, of course, needs to be dynamically configured in order to make decisions on how it should handle traffic.

  // Warning messages describe a problem the client making the API request should correct or be aware of.
  // Limit warnings to 120 characters if possible.
  // Warnings over 256 characters and large numbers of warnings may be truncated.
  // +optional
  repeated string warnings = 7;
}

// AdmissionReview describes an admission review request/response.
message AdmissionReview {

  // first request is issued will be included in any subsequent continued requests. This is sometimes
  // referred to as a consistent snapshot, and ensures that a client that is using limit to receive
  // smaller chunks of a very large result can ensure they see all possible objects. If objects are
  // updated during a chunked list the version of the object that was present at the time the first list
  // result was calculated is returned.

  // the list automatically by PodDisruptionBudget controller after some time.
  // If everything goes smooth this map should be empty for the most of the time.
  // Large number of entries in the map may indicate problems with pod deletions.
  // +optional
  map<string, k8s.io.apimachinery.pkg.apis.meta.v1.Time> disruptedPods = 2;

  // Number of pod disruptions that are currently allowed.

	// Live charts come from manifests/
	liveCharts = chartSourceType(filepath.Join(env.IstioSrc, operatorSubdirFilePath))
)

type testGroup []struct {
	desc string
	// Small changes to the input profile produce large changes to the golden output
	// files. This makes it difficult to spot meaningful changes in pull requests.
	// By default we hide these changes to make developers life's a bit easier. However,