<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:%{ENV:ZUUL_API_URL} %{HTTP_HOST}}/$1" [P]
</VirtualHost>