// 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
  // with a pod's existing nodeSelector. Any conflicts will cause the pod to
  // be rejected in admission.
  // +optional
  // +mapType=atomic
  map<string, string> nodeSelector = 1;

	return probeSet, nil
}

func (s *Server) Start() {
	log.Info("CNI ambient server starting")
	s.kubeClient.RunAndWait(s.ctx.Done())
	log.Info("CNI ambient server kubeclient started")
	pods := s.handlers.GetAmbientPods()
	err := s.dataplane.ConstructInitialSnapshot(pods)
	if err != nil {
		log.Warnf("failed to construct initial snapshot: %v", err)
	}

	log.Info("CNI ambient server marking ready")
	s.Ready()

  // versions the Webhook expects. API server will try to use first version in
  // the list which it supports. If none of the versions specified in this list
  // supported by API server, validation will fail for this object.
  // If a persisted webhook configuration specifies allowed versions and does not
  // include any versions known to the API Server, calls to the webhook will fail
  // and be subject to the failure policy.

  optional int64 observedGeneration = 1;

  // DisruptedPods contains information about pods whose eviction was
  // processed by the API server eviction subresource handler but has not
  // yet been observed by the PodDisruptionBudget controller.
  // A pod will be in this map from the time when the API server processed the
  // eviction request to the time when the pod is seen by PDB controller

  # Retrieve Envoy server metrics in prometheus format
  istioctl experimental envoy-stats <pod-name[.namespace]> --output prom

  # Retrieve Envoy server metrics in prometheus format with custom proxy admin port
  istioctl experimental envoy-stats <pod-name[.namespace]> --output prom --proxy-admin-port 15000

  # Retrieve Envoy server metrics in prometheus format with merged application metrics

  // 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
  // with a pod's existing nodeSelector. Any conflicts will cause the pod to
  // be rejected in admission.
  // +optional
  // +mapType=atomic
  map<string, string> nodeSelector = 1;

  // 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
  // with a pod's existing nodeSelector. Any conflicts will cause the pod to
  // be rejected in admission.
  // +optional
  // +mapType=atomic
  map<string, string> nodeSelector = 1;

  // `assuredConcurrencyShares` (ACS) configures the execution
  // limit, which is a limit on the number of requests of this
  // priority level that may be exeucting at a given time.  ACS must
  // be a positive number. The server's concurrency limit (SCL) is
  // divided among the concurrency-controlled priority levels in
  // proportion to their assured concurrency shares. This produces
  // the assured concurrency value (ACV) --- the number of requests

  // `assuredConcurrencyShares` (ACS) configures the execution
  // limit, which is a limit on the number of requests of this
  // priority level that may be exeucting at a given time.  ACS must
  // be a positive number. The server's concurrency limit (SCL) is
  // divided among the concurrency-controlled priority levels in
  // proportion to their assured concurrency shares. This produces
  // the assured concurrency value (ACV) --- the number of requests

	// 0 means that there is no limit.
	XdsViaAgentsLimit int
}

var DefaultOptions = Options{
	MessageWriter:     os.Stdout,
	XdsViaAgents:      false,
	XdsViaAgentsLimit: 0,
}

// RequestAndProcessXds merges XDS responses from 1 central or 1..N K8s cluster-based XDS servers
// Deprecated This method makes multiple responses appear to come from a single control plane;
// consider using AllRequestAndProcessXds or FirstRequestAndProcessXds