Exception: Error inspecting image: docker://docker.io/ server misbehaving

2018-10-02 16:52:36.977 13286 WARNING tripleoclient.v1.tripleo_deploy.Deploy [ ] rendering j2 template to file: /home/zuul/tripleo-heat-installer-templates/./network/config/multiple-nics/compute-dvr.yaml
2018-10-02 16:52:36.977 13286 WARNING tripleoclient.v1.tripleo_deploy.Deploy [ ] jinja2 rendering normal template controller-v6.j2.yaml
2018-10-02 16:52:36.977 13286 WARNING tripleoclient.v1.tripleo_deploy.Deploy [ ] rendering j2 template to file: /home/zuul/tripleo-heat-installer-templates/./network/config/multiple-nics/controller-v6.yaml
2018-10-02 16:53:02.480 13286 ERROR tripleoclient.v1.tripleo_deploy.Deploy [ ] Exception: Error inspecting image: docker://docker.io/tripleorocky/centos-binary-barbican-api:current-tripleo
time="2018-10-02T16:53:02Z" level=fatal msg="pinging docker registry returned: Get https://registry-1.docker.io/v2/: dial tcp: lookup registry-1.docker.io on 127.0.0.1:53: server misbehaving"

2018-10-02 16:53:02.490 13286 ERROR tripleoclient.v1.tripleo_deploy.Deploy [ ] None
2018-10-02 16:53:03.657 13286 WARNING tripleoclient.v1.tripleo_deploy.Deploy [ ] Not cleaning working directory /home/zuul/tripleo-heat-installer-templates
2018-10-02 16:53:03.692 13286 WARNING tripleoclient.v1.tripleo_deploy.Deploy [ ] Not cleaning ansible directory /home/zuul/undercloud-ansible-vpyQEW
2018-10-02 16:53:03.718 13286 WARNING tripleoclient.v1.tripleo_deploy.Deploy [ ] Install artifact is located at /home/zuul/undercloud-install-20181002165302.tar.bzip2

http://logs.openstack.org/73/607173/1/gate/tripleo-ci-centos-7-containerized-undercloud-upgrades/703ce71/logs/undercloud/home/zuul/install-undercloud.log.txt.gz#_2018-10-02_16_53_02_480

Source:
http://git.openstack.org/cgit/openstack/tripleo-common/tree/tripleo_common/image/image_uploader.py#n298

Maybe the msg needs to be updated?

    if process.returncode != 0:
            not_found_msgs = (
                u'manifest unknown',
                # returned by docker.io
                u'requested access to the resource is denied'
            )