Let's begin our preparation of the Certified OpenStack Administrator exam objectives by discussing Keystone, the OpenStack identity service. Understanding Keystone is one of the primary building blocks of passing the COA exam.
In this chapter, we will cover the following topics:
- Authentication and authorization?
- Keystone architecture
- Keystone concepts
- Authentication in action
- Project scope on the Horizon dashboard and CLI
- Exam objective - managing quotas
- Exam objective - managing users, roles, groups, projects, and domains
- Exam objective - managing the service catalog - services and endpoints
After this chapter, you should have a solid understanding of Keystone and the skills necessary to successfully fulfill all Keystone-related objectives on the exam.