Comment 7 for bug 1804519

Reviewed: https://review.openstack.org/619612
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=cc256054c0d16801bcd241148793ab741e0d2995
Submitter: Zuul
Branch: master

commit cc256054c0d16801bcd241148793ab741e0d2995
Author: Lance Bragstad <email address hidden>
Date: Thu Nov 22 14:58:58 2018 +0000

    Update mapping policies for system reader

    The mapping policies were not taking the default roles work we did
    last release into account. This commit changes the default policies
    to rely on the ``reader`` role for get and list mappings. Subsequent
    patches will incorporate:

     - system member
     - system admin
     - domain users
     - project users

     Related-Bug: 1804519
     Related-Bug: 1804521

    Change-Id: I2fe143dc75dd702665ea1ba643d4ae7700b748ac