server {

   listen 80 default;
   server_name _;
   location /.well-known {
       alias /var/www/.well-known/;
   }
   #return 301 https://$host$request_uri;
   location / {
       if ($scheme = "http") {
           rewrite ^ https://$http_host$request_uri? permanent;
       }
   }
}