Open Stack

I am beginner in building openstack cloud. I try to build a private
    cloud only use for our university. In my design. I use three machine
    like this:
    1. Main Server that holds the codes of my application and run on it.
    2. Key Storage Machine that keeps the keys to decrypt.
    3. Storage Machine that store the user data and other related
    information to access the stored data.
    So, I want to know:
    How to use my web based application (written in jsp) in openstack cloud?
    How to build  Storage Machine to store the user data step by step?
    Please, help me.
    Thanks