server {
  listen 80;
  server_name yoursitename.com;
  server_tokens off;

  location /.well-known/acme-challenge/ {
    root /var/www/certbot;
  }

  location / {
    #auth_basic           "Administrator's Area";
    #auth_basic_user_file /basic_auth/.htpasswd;
    proxy_pass  http://bukuserver:5001;
    proxy_set_header  Host               $http_host;
    proxy_set_header  X-Real-IP          $remote_addr;
    proxy_set_header  X-Forwarded-For    $proxy_add_x_forwarded_for;
    proxy_set_header  X-Remote-Port      $remote_port;
    proxy_set_header  X-Forwarded-Proto  $scheme;
    proxy_redirect    off;
  }
}