// 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 {
  // Request describes the attributes for the admission request.
  // +optional
  optional AdmissionRequest request = 1;

Istio provides a few helper libraries to get started writing a controller. While these libraries help, there are still a lot of subtleties in correctly writing (and testing!) a controller properly.

To get started writing a controller, review the [Example Controller](../../pkg/kube/controllers/example_test.go).

### Controllers overview

# WARNING: DO NOT EDIT, THIS FILE IS A COPY.
# The original version of this file is located at /manifests/helm-profiles directory.
# If you want to make a change in this file, edit the original one and run "make gen".

# The preview profile contains features that are experimental.
# This is intended to explore new features coming to Istio.
# Stability, security, and performance are not guaranteed - use at your own risk.
meshConfig:
  defaultConfig:

# WARNING: DO NOT EDIT, THIS FILE IS A COPY.
# The original version of this file is located at /manifests/helm-profiles directory.
# If you want to make a change in this file, edit the original one and run "make gen".

# The preview profile contains features that are experimental.
# This is intended to explore new features coming to Istio.
# Stability, security, and performance are not guaranteed - use at your own risk.
meshConfig:
  defaultConfig:

  // +optional
  map<string, string> annotations = 2;

  // Namespace is the namespace the pod is being created in.
  // +optional
  optional string namespace = 3;
}

// ImageReviewStatus is the result of the review for the pod creation request.
message ImageReviewStatus {
  // Allowed indicates that all images were allowed to be run.
  optional bool allowed = 1;

  // Reason should be empty unless Allowed is false in which case it

	err := rootCmd.Execute()
	if err != nil {
		t.Fatalf("failed to execute istioctl profile command: %v", err)
	}
	output := out.String()
	expectedProfiles := []string{"default", "demo", "empty", "minimal", "openshift", "preview", "remote"}
	for _, prof := range expectedProfiles {
		g.Expect(output).To(ContainSubstring(prof))
	}

func registerEnvironment[T env.Parseable](name string, defaultValue T, usage string) {
	envName := strings.Replace(strings.ToUpper(name), "-", "_", -1)
	// Note: we do not rely on istio env package to retrieve configuration. We relies on viper.
	// This is just to make sure the reference doc tool can generate doc with these vars as env variable at istio.io.
	env.Register(envName, defaultValue, usage)
	bindViper(name)
}

	remoteSecret, warn, err := createRemoteSecret(opt, client)
	if err != nil {
		return "", warn, err
	}

	// convert any binary data to the string equivalent for easier review. The
	// kube-apiserver will convert this to binary before it persists it to storage.
	remoteSecret.StringData = make(map[string]string, len(remoteSecret.Data))
	for k, v := range remoteSecret.Data {