Hello,
If you want to install with one click and manage nginx, varnish, Apache, php-fpm multi version, postfix, dovecot, ClamAV, AMaVIS, SpamAssassin, firewall (csf+lfd), ModSecurity with OWASP or Comodo WAF rules , roundcube webmail etc,
I recommend to use CentOS web panel pro. Cwp is free control panel with additional feature enabled in just 12$ per year.
I can install it for you if you are interested. Its much easier to use and manage all features from easy to use web interface.
Regards,
Zeeshan Javed