apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata: 
  name: {{ .Values.letsencrypt.name }}
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    email: {{ .Values.letsencrypt.email }}
    privateKeySecretRef:
      # generated cert name
      name: {{ .Values.letsencrypt.name }}
    solvers:
      - http01: 
          ingress:
            class: alb