Multiple production ruby/rails environments

Question

I would like to know if it's possible to set specific ruby environments to specific sites.

In /etc/httpd/conf/httpd.conf

LoadModule passenger_module /home/user/.rvm/gems/ruby-1.8.7-p249/gems/passenger-2.2.15/ext/apache2/mod_passenger.so
PassengerRoot /home/user/.rvm/gems/ruby-1.8.7-p249/gems/passenger-2.2.15
PassengerRuby /home/user/.rvm/rubies/ruby-1.8.7-p249/bin/ruby

But say I want to use a different ruby environment, for a specific site, how would I go about doing this?

I have rvm installed correctly for my user 'user' so switching environments and installing other environments is quite painless, but the apache configuration side has me clueless.

Thanks

Answer 1

From the RVM Passenger page:

Q: Can I run multiple projects under passenger with each project on a different ruby version?

A: Not at this time. Passenger currently only supports running it's projects under one ruby. You can get this behavior using a proxy pass.

If you want different ruby environments per project, you'll need to use mongrel/unicorn/etc.