# На фронтенде :80
  # Let's Encrypt URL
  acl letsencrypt_url path_beg /.well-known/acme-challenge/
  # Не пробрасывать на HTTPS
  http-request redirect scheme https if !{ ssl_fc } !no-https-domains !letsencrypt_url
  # Let's Encrypt backend
  use_backend be_letsencrypt if letsencrypt_url

# Бэкенд
  backend be_letsencrypt
    server letsencrypt 127.0.0.1:54321