I also encountered "missing container registry"
http://logs.openstack.org/08/589208/1/check/tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates/aa98c24/logs/undercloud/var/log/containers/mistral/engine.log.txt.gz#_2018-08-14_16_48_11_805
I also encountered "missing container registry"
http:// logs.openstack. org/08/ 589208/ 1/check/ tripleo- ci-centos- 7-scenario000- multinode- oooq-container- updates/ aa98c24/ logs/undercloud /var/log/ containers/ mistral/ engine. log.txt. gz#_2018- 08-14_16_ 48_11_805