apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-issuer
spec:
  acme:
    email: plupy44@gmail.com
    server: https://acme-v02.api.letsencrypt.org/directory
    privateKeySecretRef:
      name: letsencrypt-issuer-account-key
    solvers:
      - http01:
          ingress:
            class: traefik

---

apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  name: nginx-cert-staging
  namespace: default
spec:
  commonName: swaous.asuscomm.com
  secretName: swaous-cert
  dnsNames:
    - swaous.asuscomm.com
  issuerRef:
    kind: Issuer
    name: letsencrypt-staging