Description of configuration options for upgrade_levels

Configuration option=Default value	Description
cells=None	(StrOpt) Set a version cap for messages sent to local cells services
cert=None	(StrOpt) Set a version cap for messages sent to cert services
compute=None	(StrOpt) Set a version cap for messages sent to compute services
conductor=None	(StrOpt) Set a version cap for messages sent to conductor services
console=None	(StrOpt) Set a version cap for messages sent to console services
consoleauth=None	(StrOpt) Set a version cap for messages sent to consoleauth services
intercell=None	(StrOpt) Set a version cap for messages sent between cells services
network=None	(StrOpt) Set a version cap for messages sent to network services
scheduler=None	(StrOpt) Set a version cap for messages sent to scheduler services
scheduler=nova.cells.scheduler.CellsScheduler	(StrOpt) Cells scheduler to use