ugh is this caused by log rotation? 
http://logs.openstack.org/87/613087/1/gate/tripleo-ci-centos-7-undercloud-containers/3ffe449/logs/undercloud/var/log/extra/errors.txt.gz#_2018-10-30_21_38_19_983

 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent Traceback (most recent call last):
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/dhcp/agent.py", line 144, in call_driver
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     getattr(driver, action)(**action_kwargs)
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py", line 220, in enable
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     self.restart()
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py", line 149, in restart
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     self.enable()
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py", line 225, in enable
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     self.spawn_process()
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py", line 451, in spawn_process
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     self._spawn_or_reload_process(reload_with_HUP=False)
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/dhcp.py", line 465, in _spawn_or_reload_process
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     pm.enable(reload_cfg=reload_with_HUP)
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/external_process.py", line 88, in enable
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     run_as_root=self.run_as_root)
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py", line 918, in execute
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     run_as_root=run_as_root)
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/utils.py", line 147, in execute
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent     returncode=returncode)
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent ProcessExecutionError: Exit code: 125; Stdin: ; Stdout: neutron-dnsmasq-qdhcp-6680dd78-98c1-4bd5-846d-12d62e19bd73
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent ; Stderr: Error response from daemon: removal of container neutron-dnsmasq-qdhcp-6680dd78-98c1-4bd5-846d-12d62e19bd73 is already in progress
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent /usr/bin/docker-current: Error response from daemon: Conflict. The container name "/neutron-dnsmasq-qdhcp-6680dd78-98c1-4bd5-846d-12d62e19bd73" is already in use by container e1108211501b76697e6cdf58cbe7ac2bec0304334a8cce31288c7380456a8758. You have to remove (or rename) that container to be able to reuse that name..
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent See '/usr/bin/docker-current run --help'.
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent 
2018-10-30 21:38:19.983 ERROR /var/log/extra/docker/containers/neutron_api/log/neutron/dhcp-agent.log: 63803 ERROR neutron.agent.dhcp.agent