Long:  "The uninstall command uninstalls Istio from a cluster",
		Example: `  # Uninstall a single control plane by revision
  istioctl uninstall --revision foo

  # Uninstall a single control plane by iop file
  istioctl uninstall -f iop.yaml
  
  # Uninstall all control planes and shared resources
  istioctl uninstall --purge`,
		Args: func(cmd *cobra.Command, args []string) error {

		return nil, err
	}

	// Populate the revisions for the control plane.
	var revisions resource.RevVerMap
	if !cfg.DeployIstio {
		// Using a pre-installed control plane. Get the revisions from the
		// command-line.
		revisions = ctx.Settings().Revisions
	} else if len(iop.Spec.Revision) > 0 {
		// Use revisions from the default control plane operator.
		revisions = resource.RevVerMap{
			iop.Spec.Revision: "",
		}

type revisionedNamespace struct {
	revision  string
	namespace namespace.Instance
}

// TestMultiVersionRevision tests traffic between data planes running under differently versioned revisions
// should test all possible revisioned namespace pairings to test traffic between all versions
func TestMultiVersionRevision(t *testing.T) {
	// nolint: staticcheck

			cfg.SystemNamespace = userGroup1NS.Name()
			cfg.ControlPlaneValues = fmt.Sprintf(`
namespace: %s
revision: usergroup-1
meshConfig:
  # REGISTRY_ONLY on one control plane is used to verify custom resources scoping
  outboundTrafficPolicy:
    mode: REGISTRY_ONLY
  # CR scoping requires discoverySelectors to be configured
  discoverySelectors:
    - matchLabels:

	brokenFlag := flag.Bool("broken", false, "include broken ports")
	xflagparse(0)

	var plats []string
	for p := range cgoEnabled {
		if broken[p] && !*brokenFlag {
			continue
		}
		plats = append(plats, p)
	}
	sort.Strings(plats)

	if !*jsonFlag {
		for _, p := range plats {
			xprintf("%s\n", p)
		}
		return
	}

	type jsonResult struct {

	switch runtime.GOOS {
	// Historically on Windows and Plan 9 we prefer the
	// cgo resolver (which doesn't use the cgo tool) rather than
	// the go resolver. This is because originally these
	// systems did not support the go resolver.
	// Keep it this way for better compatibility.
	// Perhaps we can revisit this some day.
	case "windows", "plan9":
		return true

}

// Name is part of the preflight.Checker interface
func (c *healthCheck) Name() string {
	return c.name
}

// CheckClusterHealth makes sure:
// - the cluster can accept a workload
// - all control-plane Nodes are Ready
// - (if static pod-hosted) that all required Static Pod manifests exist on disk

// - Enforces all version skew policies
// - Asks the user if they really want to upgrade
// - Makes sure the control plane images are available locally on the control-plane(s)
// - Upgrades the control plane components
// - Applies the other resources that'd be created with kubeadm init as well, like
//   - Uploads the newly used configuration to the cluster ConfigMap

	return errors.New("not implemented")
}

func DupCloseOnExec(fd int) (int, string, error) {
	nfd, err := syscall.Dup(int(fd), -1)
	if err != nil {
		return 0, "dup", err
	}
	// Plan9 has no syscall.CloseOnExec but
	// its forkAndExecInChild closes all fds
	// not related to the fork+exec.
	return nfd, "", nil

    # values by adding its node selector block in the relevant section below and setting
    # the desired values.
    defaultNodeSelector: {}

    # enable pod disruption budget for the control plane, which is used to
    # ensure Istio control plane components are gradually upgraded or recovered.
    defaultPodDisruptionBudget:
      enabled: true

    # A minimal set of requested resources to applied to all deployments so that