I am interested in a way to have private cloud which would host Glassfish (or Tomcat) server.

Which option from Eucalyptus, Openstack or Nimbus would be best to deploy java applications on it? Or maybe there is something other and I am looking wrong at the problem?

The way I imagine this, that I should have some shared storage that I could expand by introducing new nodes to this cluster and have easy management for glassfish instances: something like virtual machines images that I can start and stop on demand and that image is shared among nodes.

I don't need concrete step-by-step solution here but guidelines how this should be done are very welcome.