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>Writing Configuration</h1><p>This page describes how to write configuration that conforms to Istio’s schemas. All configuration schemas in Istio are defined as <a href="https://developers.google.com/protocol-buffers/docs/proto3">protobuf messages</a>. When in doubt, search for the protos.</p><h2 id="translati