file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright 2023 John Howard

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

		ClosePortForwarderOnInterrupt(fw)

		log.Debugf(fmt.Sprintf("port-forward to %s pod ready", flavor))
		openBrowser(fmt.Sprintf(urlFormat, fw.Address()), writer, browser)

		// Wait for stop
		fw.WaitForStop()

		return nil
	}

	return fmt.Errorf("failure running port forward process: %v", err)
}

func ClosePortForwarderOnInterrupt(fw kube.PortForwarder) {
	go func() {

	)

	if options.XdsViaAgents {
		responses, err = queryDebugSynczViaAgents(all, dr, istioNamespace, kubeClient, centralOpts, options)
	} else {
		// Self-administered case.  Find all Istiods in revision using K8s, port-forward and call each in turn
		responses, err = queryEachShard(all, dr, istioNamespace, kubeClient, centralOpts)
	}
	if err != nil {
		if _, ok := err.(ControlPlaneNotFoundError); ok {

  // DriverName defines the name of the dynamic resource driver that is
  // used for allocation of a ResourceClaim that uses this class.
  //
  // Resource drivers have a unique name in forward domain order
  // (acme.example.com).
  optional string driverName = 2;

  // ParametersRef references an arbitrary separate object that may hold
  // parameters that will be used by the driver when allocating a

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

This component accomplishes that in the following ways:

1. By installing a separate, very basic "CNI plugin" binary onto the node to forward low-level pod lifecycle events (CmdAdd/CmdDel/etc) from whatever node-level CNI subsystem is in use to this node agent for processing via socket.
1. By running as a node-level daemonset that:

  // MaxUnavailableStatefulSet feature. The field applies to all pods in the range 0 to
  // Replicas-1. That means if there is any unavailable pod in the range 0 to Replicas-1, it
  // will be counted towards MaxUnavailable.
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString maxUnavailable = 2;
}

// Scale represents a scaling request for a resource.
message Scale {

  //   running pods are terminated.
  // - Ignore: indicates that the counter towards the .backoffLimit is not
  //   incremented and a replacement pod is created.
  // - Count: indicates that the pod is handled in the default way - the
  //   counter towards the .backoffLimit is incremented.
  // Additional values are considered to be added in the future. Clients should

    fixed_coredns=$(
      printf '%s' "${original_coredns}" | sed \
        -e 's/^.*kubernetes cluster\.local/& internal/' \
        -e '/^.*upstream$/d' \
        -e '/^.*fallthrough.*$/d' \
        -e '/^.*forward . \/etc\/resolv.conf$/d' \
        -e '/^.*loop$/d' \
    )
    echo "Patched CoreDNS config:"
    echo "${fixed_coredns}"
    printf '%s' "${fixed_coredns}" | kubectl apply -f -
  fi
}

	registerStringParameter(constants.CNIEventAddress, "/var/run/istio-cni/pluginevent.sock",
		"The UDS server address which CNI plugin will forward ambient pod creation events to")
	registerStringParameter(constants.ZtunnelUDSAddress, "/var/run/ztunnel/ztunnel.sock", "The UDS server address which ztunnel will connect to")