Hello,
We have recently deployed that and it's working fine. We have deployed different keys
for the different openstack clusters ofcourse and they are using the same
cinder/nova/glance pools.
The only risk is if a client from one openstack cluster creates a volume and the id that
will be generated ends up being the same on an existing volume from the other openstack
cluster. But that's like possibility of 1 in 5 billion or something.
We took the risk.
Regards