Comment 3 for bug 1675147

Reviewed: https://review.openstack.org/449288
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=a8fd8731d2e5562c5631d6847d4d781ed0a2e772
Submitter: Jenkins
Branch: master

commit a8fd8731d2e5562c5631d6847d4d781ed0a2e772
Author: Rick Bartra <email address hidden>
Date: Tue Jul 18 17:38:52 2017 -0400

    Add policy granularity to the Flavors API

    The same policy rule (os_compute_api:os-flavor-manage) is being used
    for the create and delete actions of the flavors REST API. It is thus
    impossible to provide different RBAC for the create and delete actions
    based on roles. To address this, changes are made to have separate
    policy rules for each action.

    Most other places in nova (and OpenStack in general) have separate
    policy rules for each action. This affords the ultimate flexibility
    to deployers, who can obviously use the same rule if that is what they
    want.

    To address backwards compatibility, the new rules added to the
    flavor_manage.py policy file, default to the existing rule
    (os_compute_api:os-flavor-manage). That way across upgrades this
    should ensure if an existing admin has customised the rule, it keeps
    working, but folks that know about the new setting can override the
    default rule. In addtion, a verify_deprecated_policy method is added
    to see if the old policy action is being configured instead of the
    new actions.

    Closes-Bug: #1675147

    Co-Authored-By: Felipe Monteiro <email address hidden>
    Change-Id: Ic67b52ebac3a47e9fb7e3c0d6c3ce8a6bc539e11