rails-nginx-puma

server {
    listen   80;
    root /home/rails/folder/public;
    server_name sub.domain.ltd;
    index index.htm index.html;

    location ~ /.well-known {
      allow all;
    }
    location / { 
      try_files $uri @proxy;
    }

   location @proxy {
	  rewrite ^/(.*)$ /$1 break;
    proxy_pass http://localhost:3001;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
   }


}