The Glance image service is one of the easier OpenStack services to understand and use. We've covered the basics of cloud images, image file types, Glance architecture as well as image properties and metadata definitions. It's important to remember that the only user that can make an image public (publicly accessible to all projects across all domains) must have the admin role. A user with the admin role can also share an image with a specific project. If a user does not have the admin role, they cannot modify or delete existing images unless that image was created by someone within the project to which they are currently scoped.
In the next chapter, we will discuss the first part of the Nova compute service and work through all objectives relating to key pairs, flavors, and the launching of virtual machines on the Horizon dashboard and python-openstackclient...