Summary
In this chapter, we discussed the basic need for Keystone and were introduced to the identity concepts in Keystone. We then discussed the architecture of Keystone and its various sub-systems. We covered the installation of components that are common to most of the OpenStack services such as the database and messaging broker—in this case, MariaDB and RabbitMQ. We then discussed the installation of the Keystone service. We verified our installation and also covered some basic troubleshooting, just in case you face any issues during installation.
Having looked at Keystone, in the next chapter we will look at the storage services of OpenStack: Cinder, Swift, and Glance.
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