You can select an virtual machine image from a list of available images when creating blueprints for OpenStack resources.
A virtual machine image is a template that contains a software configuration, including an operating system. Virtual machine images are managed by the OpenStack provider and are imported during data collection.
If an image that is used in a blueprint is later deleted from the OpenStack provider, it is also removed from the blueprint. If all the images have been removed from a blueprint, the blueprint is disabled and cannot be used for machine requests until it is edited to add at least one image.