May 2018
Intermediate to advanced
256 pages
7h 6m
English
Content preview from OpenStack for Architects - Second Edition
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Writing requirements
In this section, we'll look at some example requirements. As we saw earlier in the chapter, every interaction with the OpenStack REST APIs starts with a request to Keystone for a token. The following user story is a good representation of that interaction:
"As an End User of the system, I should be able to present my Active Directory username and password to the Keystone service and receive a token that authorizes me to use other OpenStack services. This token will be scoped to the projects to which I have been granted access by the OpenStack Administrator."
The following metadata can be associated with this requirement:
- User: End user
- Inputs: Active Directory authentication credentials
- Outputs: Authorization token and ...
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