The setting are mostly stored on the etcd service in this basic format
config ( Constant ): Is a constant place for all config information
Group ( Default "headend" ): A way to specify a type of application.
Name ( Default Server IP ): The Machine name
Subsytem ( Default "publisher" ): The identifier of what the appliction is ( publisher / loadbalancer )
Depending on if the application is running as a "loadbalancer" or a "publisher" it will either read a list of available endpoints or add its endpoint to the list. The list of endpoints are stored in etcd in roughly the same way as settings.
NATS is where the work will be posted to to be processed by workers. These are read in by the publishers and stored on etcd. They are stored in the followin path.