ewer resources and associated changes to the sidecars, thus improving the overall performance on the control plane and data plane.</p><h2 id=background>Background</h2><p>By default, Istio watches all Namespaces, Services, Endpoints and Pods in a cluster. For example, in my Kubernetes cluster, I deployed the <code>sleep</code> service in the default namespace, and the <code>httpbin</code> service in the <code>ns-x</code> namespace. I’ve added the <code>sleep</code> service to the mesh, but I have no plan t