server {
    listen 3001;
    server_name <%= domain_name %> localhost;
    allow 172.0.0.0/8;
    deny all;

    location / {
        proxy_pass http://web:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}