ruby - Can a Rails app launch a rack app? -

If I have Ruby on Rails app running on Apache Shared Server (with Morgil), should I launch it Run another total separate rack app for?

Then what can I possibly do to create a rail app that manages the other rail / rack app? So it can tell which apps are running and when I want it can start / stop them, or does it get trapped in every "Sandbox" app?

In Rail 3 you can set up the router to pass a rack app to the matched route See:.