Hi,
The GlusterFS repository became unavailable this morning, as a result all Jenkins jobs that use the repository will fail, the common error would be:
http://download.gluster.org/pub/gluster/glusterfs/LATEST/EPEL.repo/epel-7/noarch/repodata/repomd.xml: [Errno 14] HTTP Error 403 - Forbidden

Also, installations of oVirt will fail.

We are working on a solution and will update asap.

Nadav.