You can select one or more flavors when creating OpenStack blueprints.
OpenStack flavors are virtual hardware templates that define the machine resource specifications for instances provisioned in OpenStack. Flavors are managed by the OpenStack provider and are imported during data collection.
vRealize Automation supports several flavors of OpenStack. For the most current information about OpenStack flavor support, see the vRealize Automation Support Matrix at https://www.vmware.com/support/pubs/vcac-pubs.html.