 deploying the <a href=https://github.com/istio/istio/tree/release-1.13/samples/bookinfo>Bookinfo sample</a> with version <code>v1</code> of the <code>reviews</code> service
running in one cluster, versions <code>v2</code> and <code>v3</code> running in a second cluster.</p><h2 id=set-up-clusters>Set up clusters</h2><p>To start, you&rsquo;ll need two Kubernetes clusters, both running a slightly customized configuration of Istio.</p><ul><li><p>Set up a multicluster environment with two Istio clusters by foll