使用 Let’s Encrypt 在 Kubernetes 上保护 Istio 的 Ingress 服务

kubectl apply -f https://github.com/jetstack/cert-manager/releases/download/v1.7.1/cert-manager.yaml

apiVersion: cert-manager.io/v1
kind: Issuer
metadata:
  name: letsencrypt-prod
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    email: your-email@example.com
    privateKeySecretRef:
      name: letsencrypt-prod
    solvers:
    - http01:
        ingress:
          class: istio

apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  name: my-certificate
spec:
  secretName: my-tls-secret
  issuerRef:
    name: letsencrypt-prod
  commonName: my-domain.com
  dnsNames:
  - my-domain.com

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: my-gateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 443
      name: https
      protocol: HTTPS
    tls:
      mode: SIMPLE
      credentialName: my-tls-secret
    hosts:
    - my-domain.com