unning in the <code>external-istiod</code> namespace, instead of the default <code>istio-system</code>, we also
need to set the <code>ISTIOCTL_ISTIONAMESPACE</code> environment variable.</p><p>Setting <code>ISTIOCTL_PREFER_EXPERIMENTAL</code> is optional. It instructs <code>istioctl</code> to redirect <code>istioctl command</code> calls to
an experimental equivalent, <code>istioctl x command</code>, for any <code>command</code> that has both a stable and experimental implementation.
In our case we need to u