VM Image Guide OpenStack Foundation 2013 OpenStack Foundation havana OpenStack Remaining licensing details are filled in by the template. This guide describes how to obtain, create, and modify virtual machine images that are compatible with OpenStack. 2013-10-25 Adds information about image formats, properties. 2013-10-17 Havana release. 2013-06-04 Updated title for consistency. 2013-05-28 Initial release of this guide.