apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-staging
spec:
  acme:
    server: https://acme-staging-v02.api.letsencrypt.org/directory

    email: EMAIL-HERE

    privateKeySecretRef:
      name: letsencrypt-staging-key

    solvers:
      - http01:
          ingress:
            class: traefik