nfigure-the-feature-or-component-settings>customize the <code>base.yaml</code></a> file
to control exactly how Istio will be deployed in all the clusters.</p><p>The only values that shouldn&rsquo;t be modified are:</p><pre><code class=language-plain data-expandlinks=true data-repo=istio>values.gateway.istio-ingressgateway.env.ISTIO_MESH_NETWORK
values.global.controlPlaneSecurityEnabled
values.global.multiCluster.clusterName
values.global.network
values.global.meshNetworks
values.pilot.meshNetworks=
</code><