Enable the Ubuntu cloud archive which is required for precise and (for non-Icehouse releases) also for trusty. Change-Id: Ief291f70cf60c434c3a8624461760ed9a2f38c0f
All scripts in this directory run within the VMs.
They install and configure OpenStack components and any other required software (such as databases).
Before these generic scripts run, scripts from the osbash (or vagrant, depending on the installation method) subdirectory set up the VM and configure basic networking.