ISPConfig Rails RVM passengergem bundler permission problem

[(O)fer_cz]

Hi, I´ve set up Rails over RVM following these howtos
http://blog.bigrocksoftware.com/2011...enger-rails-3/
http://kris.me.uk/2011/10/28/rails-r...it-apache.html
http://www.modrails.com/install.html
http://beginrescueend.com/integration/passenger/
http://gembundler.com/

I´m running passenger under user "passenger" but I´m expectiong problems with permissions.

I´ve used

Multi-User installations - For server administrators - For an installation usable by all users on the system - Please note that Single-User supercedes Multi-User. This also used to be called the System-Wide Install. Using this type of installation without knowledge how umask works is a big security risk.

or is it better to install passenger under root with ISPC?

To which group should I add what user, so ISPC´s permissions won´t colide with passenger, if I want add sites over ISPC interface?

thanks for answers