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KVM Virtualization Cookbook by Konstantin Ivanov

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How it works...

OpenStack uses a SQL database, such as Mysql/MariaDB/Percona, to store information about its services. In the following recipes, we are going to create databases for the Keystone, Glance, Nova, and Neutron projects. We install and configure MariaDB in steps 1 through 3.

The messaging queue we install and configure in step 4 provides a centralized way for the services to communicate with each other by producing and consuming messages. OpenStack supports a few different message bus implementations, such as RabbitMQ, Qpid, and ZeroMQ.

The identity service Keystone caches authentication tokens using the memcached daemon. We install and configure it in step 5.

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