For a basic setup, let's take a look at the basic environment required. We will need to make sure all our machines are installed with the same version of Ubuntu Server 64 bit version. An example of this architecture is shown the following diagram:

Image source: http://docs.openstack.org/

OpenStack will not necessarily need a large amount of resources, and you can refer to the following minimum resource requirements:

One suggestion would be to go with a minimal installation of Ubuntu and go for a 64 bit Ubuntu version. Alternatively, you can build these on virtual machines (VMs). VMs have the added advantage that one physical server can be used to create multiple nodes with as many network interfaces and...