A change upstream to switch os-net-config to be installed via a package rather than via a DIB element accidently removed the openvswitch element that enables the openvswitch service by default on the overcloud. Prior to upstream Queens, the service was enabled so this was a regression.
VERIFIED guestfish -a /var/lib/libvirt/images/overcloud-full.qcow2 run : mount /dev/sda / : find /etc/systemd/system > master.txt [root@sealusa9 ~]# cat master.txt |grep switch /multi-user.target.wants/openvswitch.service virt-customize -a /var/lib/libvirt/images/overcloud-full.qcow2 --run-command "rpm -qa "*openvswitch*" > /root/file2" [root@sealusa9 mnt]# cat /mnt/root/file2 openvswitch-ovn-central-2.9.0-15.el7fdp.x86_64 openvswitch-ovn-common-2.9.0-15.el7fdp.x86_64 openvswitch-2.9.0-15.el7fdp.x86_64 python-openvswitch-2.9.0-15.el7fdp.noarch openvswitch-ovn-host-2.9.0-15.el7fdp.x86_64 openstack-neutron-openvswitch-12.0.1-0.20180327195360.68b8980.el7ost.noarch
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://access.redhat.com/errata/RHEA-2018:2086