Configure the role names and participants of the test, including configuration settings.
Note: To be able to run tests with everything ignored or excluded by tags
you must not use
testconductor, or helper methods that use
from the constructor of your test class.
Use this to hook MultiNodeSpec into your test framework lifecycle, either by having your test extend MultiNodeSpec and call these methods or by creating a trait that calls them and then mixing that trait with your test together with MultiNodeSpec.