Hello Luigi,
Yes, we have a general plan to drop CS8 jobs in master. We are tracking this topic in
RDO meetings [1][2]. We are waiting for TripleO and Puppet projects to move to CS9
in master. But yeah, I think we need to find a temporary plan as it might take a bit longer.
Currently, we can't pin projects to a commit separately between CS8 and CS9. But, we can add a mechanism
to do so : create a branch from master -> master-cs8 and edit DLRN script on cs8-master DLRN builder
to checkout this branch. We just need to check the operational part and evaluate if it's relevant.
For now, only Octavia [3] and Cinder [4] are blocked (i.e we can't build the latest commits with DLRN).