/v1alpha1
kind: Certificate
metadata:
  name: demo-certificate
  namespace: istio-system
spec:
  acme:
    config:
    - dns01:
        provider: your-dns
      domains:
      - &#39;*.mydemo.com&#39;
  commonName: &#39;*.mydemo.com&#39;
  dnsNames:
  - &#39;*.mydemo.com&#39;
  issuerRef:
    kind: ClusterIssuer
    name: letsencrypt-demo
  secretName: istio-customingressgateway-certs</code></pre><p>记录一下 <code>secretName</code> 的值，后面会使用它。</p></li><li><p>要进行自动扩容，�