<li><p>And finally, prepare the mesh by running the download script. This will create a root key and certificate
that will be used to secure communication between the clusters in the mesh, along with a <code>base.yaml</code>
file which will be used to control the Istio configuration deployed on all the clusters:</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ ./setup-mesh.sh prep
</code></pre><p>Note that this step doesn&rsquo;t actually do anything to the clusters, it is merely cr