Maintenance Nginx Page

nginx.conf

server
{
    listen 80;
    server_name server.com.ua;

    location /
    {
        try_files $uri @underconstruction;
    }

    location @underconstruction {
        rewrite ^/.*$ /underconstruction.html redirect;
    }

    location @app {
        include /etc/nginx/fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root/entrypoint.php;
        fastcgi_param APPLICATION_ENV production;
        fastcgi_buffers 10 8k;
        fastcgi_buffer_size 8k;
    }
}