Comment 3 for bug 1583596

Reviewed: https://review.openstack.org/321461
Committed: https://git.openstack.org/cgit/openstack/fuel-octane/commit/?id=816c83eb36d6b94eb4f0602a62bf45684e31fc78
Submitter: Jenkins
Branch: master

commit 816c83eb36d6b94eb4f0602a62bf45684e31fc78
Author: Oleg Gelbukh <email address hidden>
Date: Thu May 26 10:28:22 2016 +0000

    Add upgrade_levels section to nova.conf if it is missing

    When no [upgrade_levels] section present in nova.conf file,
    fuel-octane should add it and set the upgrade levels. Otherwise,
    live migration is not possible for rolling upgrade scenario.

    Change-Id: I60e5f88beab3c5da039885522b17355cedde7582
    Closes-bug: 1583596