Comment 4 for bug 1813602

Reviewed: https://review.openstack.org/633532
Committed: https://git.openstack.org/cgit/openstack/charm-interface-keystone/commit/?id=0ec113afb7a553e6065b60ea8e9d6ac3ea4b2241
Submitter: Zuul
Branch: master

commit 0ec113afb7a553e6065b60ea8e9d6ac3ea4b2241
Author: Frode Nordahl <email address hidden>
Date: Mon Jan 28 16:39:57 2019 +0100

    Add support for passing optional ``requested_roles`` attribute

    When passing ``requested_roles`` down the ``identity-service``
    relation the Keystone charm will create the listed roles for you.

    Useful for charm authors implementing charms with specific role
    requirements.

    Change-Id: I7c1eedb1e78ffc53ac3e0df81f6b52358dd8dfa5
    Closes-Bug: #1813602