Updating the cloud-init files related to Ubuntu images is needed to be
able to use Ubuntu images for running all integration tests.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Add cloud-init data for Ubuntu and introduce a convenience script that
can be used to generate cloud-init disk images for manual testing.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>