r" class="col-xs-1 tab-neg-margin pull-left"> <a id="sidebar-tab" class="glyphicon glyphicon-chevron-left" href="javascript:void 0;"></a></div><div id="content-container" class="thin-left-border col-sm-9 markdown"><div id="toc" class="toc"></div><div id="doc-content"><h1>Plugging in CA certificate and key</h1><p>This task shows how operators can plug existing certificate and key into Istio CA.</p><p>By default, the Istio CA generates self-signed CA certificate and key and uses them to sign the workload cert