On Thu, Sep 6, 2018 at 2:05 PM, Patrick Donnelly <pdonnell@xxxxxxxxxx> wrote: > I've recently added support for automating the kernel branch test > matrix in the Ceph qa-suite [1]. This makes it so we're testing (a) > RHEL with its distribution kernel and (b) a random distribution with > the testing kernel. (A particular benefit of this is that you no > longer need to specify `-k testing` to teuthology-suite and therefore > don't accidentally use an obsolete kernel.) > > What would be nice though is to specify the distro/kernel for the > kernel client role independently of the other roles. i.e. I could have > a RHEL kernel client and an Ubuntu 16.04 Ceph cluster. There are two > reasonable reasons for doing this: (a) break the distribution > specification of the cluster out of the mount matrix and (b) allow for > mixed distribution cluster testing. > > I imagine it could look like: > > roles: > - > daemons: ["osd.0", "mon.a", ...] > os: > type: ubuntu > version: 16.04 > kernel: testing > - > daemons: ["client.0"] > os: > type: rhel > version: 7.5 > kernel: distro > > Thoughts? Anyone like to look into this? This seems like a good feature for teuthology to support, but I think the few people actively working on testing right now have other things that will fall ahead on their queue. I don't have a lot of thoughts on the specification interface, but something that just came up and will also impact the way we do role mapping is that ceph-ansible and DeepSea don't support deploying multiple monitors or MDSes to a single node. I'm trying to get going on that (though it's not the first task on my list) and any success will certainly involve some changes there as well... -Greg > > [1] https://github.com/ceph/ceph/pull/23673 > [2] https://github.com/ceph/ceph/tree/331e4180be186835eb5d81ae1915af7633770a60/qa/cephfs/mount/kclient/overrides/distro > > -- > Patrick Donnelly
