January 2019
Intermediate to advanced
606 pages
15h 1m
English
book
Ceph: Designing and Implementing Scalable Storage Systems
by Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk
Content preview from Ceph: Designing and Implementing Scalable Storage Systems
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Cluster authentication
Ceph provides Kerberos-type authentication for all clients and daemons of the cluster using the cephx protocol. Each entity that communicates with other cluster components needs to communicate using their respective keys. Any MON can authenticate a client based on the key it provides, then send it a session key to use when talking to other processes within the cluster, such as OSDs. Once the session expires the clients need to authenticate to the cluster again before they can resume talking to OSDs. The list of keys that authorized clients can use is retrieved from the auth list subcommand.
root@ceph-client0:~# ceph auth listinstalled auth entries:client.adminkey: AQBSdLVZN8DNDBAAIwIhHp/np5uUk9Rftzb5kg==caps: [mds] ...
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