<VirtualHost *:80>
        ServerAdmin webmaster@localhost
        DocumentRoot /var/www/html
        ErrorLog /dev/stdout
        CustomLog /dev/stdout combined

        # LogLevel alert rewrite:trace6
        RewriteEngine On
        RewriteMap preview "prg://usr/local/bin/zuul-preview"
        RewriteRule "^(.*)$" "${preview:%{HTTP_HOST}}$1" [P]
</VirtualHost>