example, particularly because of the multitude of services, languages and versions
for the <code>reviews</code> service.</p><h2 id=before-you-begin>Before you begin</h2><p>If you haven&rsquo;t already done so, setup Istio by following the instructions
corresponding to your platform <a href=/v1.2/docs/setup/>installation guide</a>.</p><h2 id=deploying-the-application>Deploying the application</h2><p>To run the sample with Istio requires no changes to the
application itself. Instead, we simply need to configu