eate-namespace --set featureGates=&#34;ExperimentalCertificateSigningRequestControllers=true&#34; --set installCRDs=true
</code></pre></li><li><p>Create three self signed cluster issuers <code>istio-system</code>, <code>foo</code> and <code>bar</code> for cert-manager.
Note: Namespace issuers and other types of issuers can also be used.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ cat &lt;&lt;EOF &gt; ./selfsigned-issuer.yaml
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
me