Comment 31 for bug 1889122

from train gate today (train cherrypick didn't merge yet https://review.opendev.org/#/c/744955)

        * https://66044ceaa9fa4a1fa395-906744ae5f779cf07a1bcffe2431d77c.ssl.cf2.rackcdn.com/741443/6/gate/tripleo-ci-centos-8-undercloud-containers/304105a/logs/undercloud/home/zuul/undercloud_install.log
        * Too Many Requests. Please see https://docs.docker.com/docker-hub/download-rate-limit/

        * https://8f60a2f82243fd880d0e-7daaa7daeb1030fb2122101d5d422feb.ssl.cf1.rackcdn.com/741443/6/gate/tripleo-ci-centos-7-containers-multinode/9daad7a/logs/undercloud/home/zuul/undercloud_install.log
        * Error: Unauthorized for url: http://mirror.ord.rax.opendev.org:8082/v2/tripleotrain/centos-binary-placement-api/blobs/sha256:22839ed824629cb0df6629d91928ff649041131a539f1e54e1d9e50d8db13a0e\nERROR:tripleo_common.image.image_export:[tripleotrain/centos-binary-placement-api] Broken layer found and removed /var/lib/image-serve