uer</a> provider with your own configuration values. The example uses the values under <code>route53</code>.</div></aside></div><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: certmanager.k8s.io/v1alpha1
kind: ClusterIssuer
metadata:
  name: letsencrypt-demo
  namespace: kube-system
spec:
  acme:
    # The ACME server URL
    server: https://acme-v02.api.letsencrypt.org/directory
    # Email address used for ACME registration
    email: &lt;REDACTED&gt;
    # Name of a secre