Use:     "experimental",
		Aliases: []string{"x", "exp"},
		Short:   "Experimental commands that may be modified or deprecated",
	}

	xdsBasedTroubleshooting := []*cobra.Command{
		// TODO(hanxiaop): I think experimental version still has issues, so we keep the old version for now.
		version.XdsVersionCommand(ctx),
		// TODO(hanxiaop): this is kept for some releases in case someone is using it.
		proxystatus.XdsStatusCommand(ctx),

  //                     required by the PodDisruptionBudget. No disruptions are
  //                     allowed and the status of the condition will be False.
  // - SufficientPods: There are more pods than required by the PodDisruptionBudget.
  //                   The condition will be True, and the number of allowed
  //                   disruptions are provided by the disruptionsAllowed property.
  //
  // +optional

      tolerations: []

      # Specify the pod anti-affinity that allows you to constrain which nodes
      # your pod is eligible to be scheduled based on labels on pods that are
      # already running on the node rather than based on labels on nodes.
      # There are currently two types of anti-affinity:
      #    "requiredDuringSchedulingIgnoredDuringExecution"
      #    "preferredDuringSchedulingIgnoredDuringExecution"

      tolerations: []

      # Specify the pod anti-affinity that allows you to constrain which nodes
      # your pod is eligible to be scheduled based on labels on pods that are
      # already running on the node rather than based on labels on nodes.
      # There are currently two types of anti-affinity:
      #    "requiredDuringSchedulingIgnoredDuringExecution"
      #    "preferredDuringSchedulingIgnoredDuringExecution"

```

These rules are expressed in code in the
[name](https://github.com/istio/operator/blob/e9097258cb4fbe59648e7da663cdad6f16927b8f/pkg/name/name.go#L131) package.

### K8s settings

Rather than defining selective mappings from parameters to fields in K8s resources, the `IstioOperatorSpec` API
contains a consistent K8s block for each Istio component. The available K8s settings are defined in

			// no updateTokenSecret means re-fetching yields the same result
			obj := []runtime.Object{c.haveTokenSecret}
			if c.updatedTokenSecret != nil {
				// fetching should give a different result than the token secret we pass in
				obj = []runtime.Object{c.updatedTokenSecret}
			}
			client := kube.NewFakeClient(obj...)

	// https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/#manually-create-a-service-account-api-token
	// TODO ephemeral time-based tokens are preferred; we should re-think this
	log.Infof("Creating token secret for service account %q", serviceAccount.Name)
	secretName := tokenSecretName(serviceAccount.Name)
	return client.Kube().CoreV1().Secrets(opt.Namespace).Create(ctx, &v1.Secret{

  // available.
  // +optional
  optional int32 minReplicas = 2;

  // maxReplicas is the upper limit for the number of pods that can be set by the autoscaler; cannot be smaller than MinReplicas.
  optional int32 maxReplicas = 3;

  // targetCPUUtilizationPercentage is the target average CPU utilization (represented as a percentage of requested CPU) over all the pods;

	cm := objs.kind("ConfigMap").nameEquals("istio-sidecar-injector").Unstructured()
	// TODO: change values to some nicer format rather than text block.
	g.Expect(cm).Should(HavePathValueMatchRegex(PathValue{"data.values", `.*"includeIPRanges"\: "172\.30\.0\.0/16,172\.21\.0\.0/16".*`}))
}

func TestManifestGenerateFlags(t *testing.T) {