tagLabel := hook.GetLabels()[label.IoIstioTag.Name]
		ri, revPresent := revisions[rev]
		if revPresent {
			if tagLabel != "" {
				ri.Webhooks = append(ri.Webhooks, &MutatingWebhookConfigInfo{
					Name:     hook.Name,
					Revision: rev,
					Tag:      tagLabel,
				})
			}
		} else {
			revisions[rev] = &RevisionDescription{
				IstioOperatorCRs: []*IstioOperatorCRInfo{},

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example.group</groupId>
  <artifactId>valid-version-revision</artifactId>
  <version>${revision}</version>

  <description>
    This will test if the validation for the ci friendly versions
    is working correct.
  </description>

}

// podCountByRevision() returns a map of revision->pods, with "<non-Istio>" as the dummy "revision" for uninjected pods
func podCountByRevision(pods []corev1.Pod, expectedRevision string) map[string]revisionCount {
	retval := map[string]revisionCount{}
	for _, pod := range pods {
		revision := extractRevisionFromPod(&pod)
		revisionLabel := revision
		if revision == "" {
			revisionLabel = "<non-Istio>"
		}

	overrideHelpStr = `If true, allow revision tags to be overwritten, otherwise reject revision tag updates that
overwrite existing revision tags.`
	revisionHelpStr = "Control plane revision to reference from a given revision tag"
	tagCreatedStr   = `Revision tag %q created, referencing control plane revision %q. To enable injection using this
revision tag, use 'kubectl label namespace <NAMESPACE> istio.io/rev=%s'
`

}

// GenerateOptions is the group of options needed to generate a tag webhook.
type GenerateOptions struct {
	// Tag is the name of the revision tag to generate.
	Tag string
	// Revision is the revision to associate the revision tag with.
	Revision string
	// WebhookName is an override for the mutating webhook name.
	WebhookName string

					Revision: "default",
					Reason:   "Namespace has istio-injection=disabled label, preventing injection",
				},
				{
					Name:     "istio-sidecar-injector-1-16",
					Revision: "1-16",
					Injected: false,
					Reason:   "Namespace has istio-injection=disabled label, preventing injection",
				},
				{
					Name:     "istio-sidecar-injector-deactivated",
					Revision: "default",

// old version and then later decides to switch back to the old revision again.
func DeactivateIstioInjectionWebhook(ctx context.Context, client kubernetes.Interface) error {
	whs, err := GetWebhooksWithRevision(ctx, client, DefaultRevisionName)
	if err != nil {
		return err
	}
	if len(whs) == 0 {
		// no revision with default, no action required.
		return nil
	}

type ControlPlaneOptions struct {
	// Revision is the istio.io/rev control plane revision
	Revision string
}

// AttachControlPlaneFlags attaches control-plane flags to a Cobra command.
// (Currently just --revision)
func (o *ControlPlaneOptions) AttachControlPlaneFlags(cmd *cobra.Command) {
	cmd.PersistentFlags().StringVarP(&o.Revision, "revision", "r", "",
		"Control plane revision")

	tcs := []struct {
		name          string
		tag           string
		revision      string
		webhookBefore *admitv1.MutatingWebhookConfiguration
		outputMatches []string
		error         string
	}{
		{
			name:          "TestErrorWhenRevisionWithNameCollision",
			tag:           "revision",
			revision:      "revision",
			webhookBefore: &revisionCanonicalWebhook,
			outputMatches: []string{},

	operatorManaged          = operatorNamespace + "/managed"
	revisionCanonicalWebhook = admitv1.MutatingWebhookConfiguration{
		ObjectMeta: metav1.ObjectMeta{
			Name: "istio-sidecar-injector-revision",
			Labels: map[string]string{
				label.IoIstioRev.Name: "revision",
				operatorManaged:       "Reconcile",
			},
		},
		Webhooks: []admitv1.MutatingWebhook{
			{
				Name: fmt.Sprintf("namespace.%s", istioInjectionWebhookSuffix),