Open Stack

Just to recap a call with Laski, Sean and Dan, the goal for the next 24 
hours with cells v2 is to get this nova change landed:

https://review.openstack.org/#/c/356138/

That depends on a set of grenade changes:

https://review.openstack.org/#/q/topic:setup_cell0_before_migrations

There are similar devstack changes to those:

https://review.openstack.org/#/q/topic:cell0_db

cell0 is optional in newton, so we don't want to add a required change 
in grenade that forces an upgrade to newton to require cell0.

And since cell0 is optional in newton, we don't want devstack in newton 
running with cell0 in all jobs.

So the plan is for Dan (or someone) to add a flag to devstack, mirrored 
in grenade, that will be used to conditionally create the cell0 database 
and run the simple_cell_setup command.

Then I'm going to set that flag in devstack-gate and from select jobs in 
project-config, so one of the grenade jobs (either single node or 
multi-node grenade), and then the placement-api job which is non-voting 
in the nova check queue and is our new dumping ground for running 
optional things, like the placement service and cell0.

-- 

Thanks,

Matt Riedemann