Nginx config

# NODEJS express on port 3001
upstream nodeapp {
    server IPADDRESS:3001;
}

# NGINX Server Instance
server {
    listen 80;
    server_name localhost;
    root /home/path/to/website;

    # Caching
    location ~* ^.+.(jpg|jpeg|css|png|js)$ {
        expires           168h;
        add_header        Pragma public;
        add_header        Cache-Control "public, must-revalidate, proxy-revalidate";
        access_log off;
    }

    # Proxy to the Node instance
    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_pass http://nodeapp;
        proxy_redirect off;
    }
}