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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Ceph authorization
In the last recipe, we covered the authentication process used by Ceph. In this recipe, we will examine its authorization process. Once a user is authenticated, he is authorized for different types of access, activities, or roles. Ceph uses the term capabilities, which is abbreviated to caps. Capabilities are the rights a user gets that define the level of access they have to operate the cluster. The capability syntax looks as follows:
{daemon-type} 'allow {capability}' [{daemon-type} 'allow {capability}']
A detailed explanation of capability syntax is as follows:
- Monitor caps: Includes the r, w, x, parameters, and allow profiles {cap}. For example:
mon 'allow rwx' or mon 'allow profile osd'
- OSD caps: Includes r,
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