cy>Test the OPA policy</a></ol></li><li role=none aria-label=Summary><a href=#summary>Summary</a><li role=none aria-label=Acknowledgements><a href=#acknowledgements>Acknowledgements</a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><h2 id=background>Background</h2><p>Istio&rsquo;s authorization policy provides access control for services in the mesh. It is fast, powerful and a widely used
feature. We have made continuous improvements to make policy more flexible 