Rebase to upstream stable/liberty 7.0.3 release of Cinder.
https://rhos-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/view/RHOS/view/RHOS8/job/qe-phase2-8_director-rhel-7.3-virthost-3cont_1comp-ipv6-vlan-lvm/8/
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2016-2991.html