Comment 5 for bug 1802971

Probably relevant, I can see the following in the journal logs.

Nov 12 17:40:42 centos-7-inap-mtl01-0000480210 dockerd-current[14710]: dnsmasq: cannot open or create lease file /var/lib/neutron/dhcp/aab3cc80-e850-4695-957a-9dc8446aa78e/leases: No such file or directory

http://logs.openstack.org/03/616203/9/gate/tripleo-ci-centos-7-standalone/75f1be5/logs/undercloud/var/log/journal.txt.gz

Related errors in the dhcp agent logs

/usr/bin/docker-current: Error response from daemon: Conflict. The container name "/neutron-dnsmasq-qdhcp-aab3cc80-e850-4695-957a-9dc8446aa78e" is already in use by container 7a54c41ab05b3e01ecbfd63def485263c07dfbd446e2db627f8b665c68132f75. You have to remove (or rename) that container to be able to reuse that name..

http://logs.openstack.org/03/616203/9/gate/tripleo-ci-centos-7-standalone/75f1be5/logs/undercloud/var/log/containers/neutron/dhcp-agent.log.txt.gz#_2018-11-12_17_40_40_144