data-repo=istio>$ kubectl create ns app-ns-1
$ kubectl create ns app-ns-2
$ kubectl create ns app-ns-3
</code></pre></li><li><p>Label each namespace to associate them with their respective control planes:</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl label ns app-ns-1 usergroup=usergroup-1 istio.io/rev=usergroup-1
$ kubectl label ns app-ns-2 usergroup=usergroup-2 istio.io/rev=usergroup-2
$ kubectl label ns app-ns-3 usergroup=usergroup-2 istio.io/rev=usergroup-2
</code></p