http {
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
    server {
        listen 3000;
        location ~* \.(jpg|jpeg|png|gif|ico|css|js|htm|html)$ {
            expires 30d;  # set long caching period on static files
            add_header Pragma public;
            add_header Cache-Control "public";
            try_files $uri $uri/ =404;  # serve file if it exists, otherwise 404
        }

    }
}