Comment 1 for bug 1712432

The actual error is

  ERROR! playbooks must be a list of plays

which I have seen when the playbook /usr/share/ceph-ansible/site-docker.yml.sample was not installed; I am inclined to think that ceph-ansible wasn't installed in the undercloud but I am not sure why this should be only in the promotion job

The two submissions which took care of installing the package are:

https://review.openstack.org/#/c/478977/
https://review.openstack.org/#/c/478986/

Is there any reason why they would not be effective for the promotion job?