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Learning Ceph - Second Edition by Karan Singh, Vaibhav Bhembre, Anthony D'Atri

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Keystone

Keystone is OpenStack's Identity Management (IM) that provides service endpoint discovery, client authentication, and multitenant authorization services. The name reflects the central, crucial role that Keystone plays with other OpenStack components.

Within an OpenStack deployment Ceph leverages Keystone by providing a mapping between RADOS Gateway users and OpenStack tenants and roles. Keystone is also used to register the RGW and other service endpoint URLs.

For more information on OpenStack, visit http://www.openstack.org

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