[MESOS-6994] Add HIERARCHICAL_ROLES framework capability.

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Component/s: scheduler api
• Epic Link: hierarchical roles
• Assignee: Unassigned
• Reporter: Benjamin Mahler
• Created: 25/Jan/17 23:03
• Updated: 26/Apr/17 16:51
• Resolved: 06/Feb/17 19:01

Description

With hierarchical roles, frameworks are expected to use a new format for roles where there is a leading slash and there may be intermediate slashes:

/eng
/eng/frontend
/eng/frontend/server

In order to enforce the role format that matches the framework's intention, we will add a HIERARCHICAL_ROLES capability that makes the framework's intention explicit. This allows us to validate the roles differently, rather than implicitly deciding if the framework has the capability.