// nolint: lll
func RequestAndProcessXds(dr *discovery.DiscoveryRequest, centralOpts clioptions.CentralControlPlaneOptions, istioNamespace string, kubeClient kube.CLIClient) (*discovery.DiscoveryResponse, error) {
	responses, err := MultiRequestAndProcessXds(true, dr, centralOpts, istioNamespace,
		istioNamespace, tokenServiceAccount, kubeClient, DefaultOptions)
	if err != nil {
		return nil, err
	}
	return mergeShards(responses)
}

	if i >= 0 {
		n = n[:i]
	}
	p := protocol.Parse(n)
	return p == protocol.Unsupported
}

func handleNamespace(istioNamespace string) string {
	if istioNamespace == "" {
		istioNamespace = constants.IstioSystemNamespace
	}
	return istioNamespace
}

// TODO(nmittler): Remove this once Pilot migrates to galley schema.

		return err
	}
	if err := createClusterEnv(wg, proxyConfig, istioNamespace, revision, internalIP, externalIP, outputDir); err != nil {
		return err
	}
	if err := createCertsTokens(kubeClient, wg, outputDir, out); err != nil {
		return err
	}
	if err := createHosts(kubeClient, istioNamespace, ingressIP, outputDir, revision); err != nil {

	tcs := []struct {
		name           string
		istioNamespace string
		webhook        admitv1.MutatingWebhookConfiguration
		whURL          string
		whSVC          string
		whCA           string
		userManaged    bool
	}{
		{
			name:           "webhook-pointing-to-service",
			istioNamespace: "istio-system",
			webhook:        revisionCanonicalWebhook,
			whURL:          "",

			"values": values.Map{
				"revision": config.Revision,
				"base":     values.Map{"validationURL": config.URL},
				"global":   values.Map{"istioNamespace": config.IstioNamespace},
			},
		},
	}
	mfs, _, err := helm.Render(config.IstioNamespace, "default", vals, nil)
	if err != nil {
		return "", nil
	}
	var validatingWebhookYAML string
	for _, m := range mfs {

func filterSystemNamespaces(nss []corev1.Namespace, istioNamespace string) []corev1.Namespace {
	filtered := make([]corev1.Namespace, 0)
	for _, ns := range nss {
		if inject.IgnoredNamespaces.Contains(ns.Name) || ns.Name == istioNamespace {
			continue
		}
		filtered = append(filtered, ns)
	}
	return filtered
}

func getNamespaces(ctx context.Context, client kube.CLIClient, istioNamespace string) ([]corev1.Namespace, error) {

}

func verifyExecAndK8sConfigTestCaseTestOutput(t *testing.T, c execAndK8sConfigTestCase) {
	t.Helper()

	ctx := cli.NewFakeContext(&cli.NewFakeContextOption{
		Namespace:      c.namespace,
		IstioNamespace: c.istioNamespace,
		Results:        c.configDumps,
	})
	client, err := ctx.CLIClient()
	assert.NoError(t, err)
	// Override the Istio config factory
	for i := range c.istioConfigs {

		},
		{
			namespace: istioNamespace,
			group:     "rbac.authorization.k8s.io",
			version:   "v1",
			resource:  "roles",
		},
		{
			namespace: istioNamespace,
			version:   "v1",
			resource:  "serviceaccounts",
		},
		{
			namespace: istioNamespace,
			version:   "v1",
			resource:  "services",
		},
		{
			namespace: istioNamespace,
			group:     "apps",

	}
	meshConfigMap, err := client.Kube().CoreV1().ConfigMaps(ctx.IstioNamespace()).Get(context.TODO(), meshConfigMapName, metav1.GetOptions{})
	if err != nil {
		return nil, fmt.Errorf("could not read valid configmap %q from namespace %q: %v - "+
			"Use --meshConfigFile or re-run "+command+" with `-i <istioSystemNamespace> and ensure valid MeshConfig exists",
			meshConfigMapName, ctx.IstioNamespace(), err)
	}

				return fmt.Errorf("failed to create k8s client: %v", err)
			}

			var podName, ns string
			if labelSelector != "" {
				pl, err := client.PodsForSelector(context.TODO(), ctx.NamespaceOrDefault(ctx.IstioNamespace()), labelSelector)
				if err != nil {
					return fmt.Errorf("not able to locate pod with selector %s: %v", labelSelector, err)
				}

				if len(pl.Items) < 1 {
					return errors.New("no pods found")