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="translating-to-yaml">Translating to YAML</h2><p>There’s an implicit mapping from protobuf to YAML using <a href="https://de