kilo ceph firefly

[Kevin Fox]

Upgraded an OpenStack Cloud to Kilo, have a FireFly ceph. The driver doesn't work.

"/usr/lib/python2.7/site-packages/cinder/volume/drivers/rbd.py", line 384, in
                  _update-volume_stats
pool_stats['max_avail'] / units.Gi)
KeyError: 'max_avail'

Seems like a change made in giant+ is assumed now.

[Josh Durgin (jdurgin)]

I didn't look hard enough last night - the 'max_avail' field is present in firefly since v0.80.6:

https://github.com/ceph/ceph/commit/e859587911edddd3a5b7fd96ee2f6a7ed77478dc

I'd suggest upgrading to the latest firefly release anyway - plenty of other fixes have landed since then.
Since dumpling is no longer maintained (see http://ceph.com/docs/master/releases/) I don't think we need to fix anything in cinder - just recommend that people upgrade to the latest firefly.