;</code></td><td>The hostname for GRPC server. (default `localhost`)</td></tr><tr><td><code>--grpc-port &lt;int&gt;</code></td><td>The port number for GRPC server. If unspecified, Istio CA will not server GRPC request. (default `0`)</td></tr><tr><td><code>--istio-ca-storage-namespace &lt;string&gt;</code></td><td>Namespace where the Istio CA pods is running. Will not be used if explicit file or other storage mechanism is specified. (default `istio-system`)</td></tr><tr><td><code>--kube-config &lt;string&gt;