Updated openstack/openstack
Project: openstack/nova  58abeee708ee77c4d6b4ef5c14b8859a48b32194
null
libvirt: Allow delete to complete when a volume disconnect fails

If an instance which was booted from a volume fails to spawn, the
instance is left in an ERROR state.  If the failure is in the networking
stage Nova will not have attached the volume via the Cinder driver,
and so the volume remains in an available state.  In this state the
volume may be deleted or assigned to another instance.
During the subsequent delete an exception may be thrown from
the cinder driver which prevents the instance from completing the
deletion process leaving the instance stuck in Error and unable to
be deleted.

Volume exceptions should be logged and ignored when the instance
is being deleted.

Closes-Bug #1222979

Change-Id: Icb3796b0ddba25cf344953a649b2e762fab6d782