From the quoted mail thread and a quick test I just did it seems that this 
issue only affects virtio-scsi, not virtio-blk.
Does anyone know if that is correct?

Thanks!
 Arne 

> On 20 Dec 2016, at 17:57, Mike Lowe <joml...@iu.edu> wrote:
> 
> I got a rather nasty surprise upgrading from CentOS 7.2 to 7.3.  As far as I 
> can tell the libvirt 2.0.0 that ships with 7.3 doesn’t behave the same way as 
> the 1.2.17 that ships with 7.2 when using ceph with cephx auth during volume 
> attachment using virtio-scsi.  It looks like it fails to add the cephx 
> secret.  The telltale signs are "No secret with id 'scsi0-0-0-1-secret0’” in 
> the /var/log/libvirt/qemu instance logs.  I’ve filed a bug here 
> https://bugzilla.redhat.com/show_bug.cgi?id=1406442 and there is a libvirt 
> mailing list  thread about a fix for libvirt 2.5.0 for what looks like this 
> same problem 
> https://www.redhat.com/archives/libvir-list/2016-October/msg00396.html  I’m 
> out of ideas for workarounds having had kind of a disastrous attempt at 
> downgrading to libvirt 1.2.17, so if anybody has any suggestions I’m all 
> ears.  
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> OpenStack-operators@lists.openstack.org
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--
Arne Wiebalck
CERN IT

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