As part of the move to using Ironic shards, we document that the best
practice for scaling Ironic and Nova deployments is to shard Ironic
nodes between nova-compute processes, rather than attempting to
user the peer_list.
Currently, we only allow users to do this using conductor groups.
This works well for those wanting a conductor group per L2 network
domain. But in general, conductor groups per nova-compute are
a very poor trade off in terms of ironic deployment complexity.
Futher patches will look to enable the use of ironic shards,
alongside conductor groups, to more easily shard your ironic nodes
between nova-compute processes.
To avoid confusion, we rename the partition_key configuration
value to conductor_group.
blueprint ironic-shards
Change-Id: Ia2e23a59dbd2f13c6f74ca975c249751bebf54b2
John Garbutt
cbf400df1d