Full deployment on a Debain 8 server


I'm terribly excited about installing Plone but I want to get the basics right as I'm not sure I understand the documentation.

My understanding is that for a production environment, the installer takes care of all but I'm not clera if I shoudl be creating the Plone user before I launch install.sh?

Also, my intention is to install in /var/www by launching "sudo ./install.sh" (or shoudl it be "sudo -u plone ./install.sh"?). If this all goes smooth, how do I tell Plone that I want all the data to be saved on a different partition? Do I create symlinks? I'm assuming the installation of the data by default would be "/var/www/var/filestorage" in my case?

The next step would then be to configure a virtual host on apache?