retval := make([]corev1.Namespace, 0, len(namespaces))
	seen := sets.String{}
	for _, webhook := range hook.Webhooks {
		nsSelector, err := metav1.LabelSelectorAsSelector(webhook.NamespaceSelector)
		if err != nil {
			return retval
		}

		for _, namespace := range namespaces {
			if !seen.Contains(namespace.Name) && nsSelector.Matches(api_pkg_labels.Set(namespace.Labels)) {

						},
					},
				},
			},
			namespaces: corev1.NamespaceList{
				Items: []corev1.Namespace{
					{
						ObjectMeta: metav1.ObjectMeta{
							Name:   "dependent",
							Labels: map[string]string{label.IoIstioRev.Name: "match"},
						},
					},
				},
			},
			outputMatches:    []string{"Caution, found 1 namespace(s) still injected by tag \"match\": dependent"},

		l.LogAndFatal(err)
	}

	// create watched namespaces
	namespaces := strings.Split(oiArgs.common.watchedNamespaces, ",")
	// if the namespace in the CR is provided, consider creating it too.
	if istioNamespace != "" {
		namespaces = append(namespaces, istioNamespace)
	}
	for _, ns := range namespaces {
		if err := operatorutil.CreateNamespace(kubeClient.Kube(), ns, "", opts.DryRun); err != nil {

	namespace := o.GetName()
	labels := o.GetLabels()
	matchAmbient := labels[constants.DataplaneMode] == constants.DataplaneModeAmbient
	if matchAmbient {
		log.Infof("Namespace %s is enabled in ambient mesh", namespace)
	} else {
		log.Infof("Namespace %s is disabled from ambient mesh", namespace)
	}
	for _, pod := range s.pods.List(namespace, klabels.Everything()) {

revision tag, use 'kubectl label namespace <NAMESPACE> istio.io/rev=%s'
`
	webhookNameHelpStr          = "Name to use for a revision tag's mutating webhook configuration."
	autoInjectNamespacesHelpStr = "If set to true, the sidecars should be automatically injected into all namespaces by default"
)

// options for CLI
var (
	// revision to point tag webhook at

	fs.AssertExpectations(t)

	// unlabelling the namespace should cause only one RemovePodFromMesh to happen
	fs.On("RemovePodFromMesh",
		ctx,
		mock.Anything,
	).Once().Return(nil)

	// unlabel the namespace
	labelsPatch := []byte(fmt.Sprintf(`{"metadata":{"labels":{"%s":null}}}`,
		constants.DataplaneMode))
	_, err = client.Kube().CoreV1().Namespaces().Patch(ctx, ns.Name,

```

and namespaces are specialized for the gateway feature and its components:

```yaml
apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
metadata:
  namespace: istio-operator
spec:
  components:
    ingressGateways:
    - name: istio-ingressgateway
      enabled: true
      namespace: istio-gateways
```

the resulting namespaces will be:

| Component | Namespace |

	})
	if err != nil {
		return nil, err
	}
	return webhooks.Items, nil
}

// GetNamespacesWithTag retrieves all namespaces pointed at the given tag.
func GetNamespacesWithTag(ctx context.Context, client kubernetes.Interface, tag string) ([]string, error) {
	namespaces, err := client.CoreV1().Namespaces().List(ctx, metav1.ListOptions{
		LabelSelector: fmt.Sprintf("%s=%s", label.IoIstioRev.Name, tag),
	})
	if err != nil {

operator: {{ $item.operator }} {{- if $item.values }} values: {{- $vals := split "," $item.values }} {{- range $i, $v := $vals }} - {{ $v | quote }} {{- end }} {{- end }} topologyKey: {{ $item.topologyKey }} {{- if $item.namespaces }} namespaces: {{- $ns := split "," $item.namespaces }} {{- range $i, $n := $ns }} - {{ $n | quote }} {{- end }} {{- end }} {{- end }} {{- end }} {{- define "podAntiAffinityPrefe" }} {{- range $index, $item := .podAntiAffinityTermL }} - podAffinityTerm: labelSelector: matchExpressions:...

operator: {{ $item.operator }} {{- if $item.values }} values: {{- $vals := split "," $item.values }} {{- range $i, $v := $vals }} - {{ $v | quote }} {{- end }} {{- end }} topologyKey: {{ $item.topologyKey }} {{- if $item.namespaces }} namespaces: {{- $ns := split "," $item.namespaces }} {{- range $i, $n := $ns }} - {{ $n | quote }} {{- end }} {{- end }} {{- end }} {{- end }} {{- define "podAntiAffinityPrefe" }} {{- range $index, $item := .podAntiAffinityTermL }} - podAffinityTerm: labelSelector: matchExpressions:...