[Openstack-operators] CentOS 7.3 libvirt appears to be broken for virtio-scsi and ceph with cephx auth

Mike Lowe jomlowe at iu.edu
Tue Dec 20 16:57:57 UTC 2016

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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