Normally, the configuration exists as a physical file and Dropwizard expects that. In order to invoke the code that loads the configuration resource supplied by the `ConfigurationSourceProvider` that was supplied a few lines above, the `file` attribute __must__ be present. I don't recall if the `version` attribute was required, but I was trying to simulate how a Dropwizard app gets started from the command line, and a null version was there too.

So this is some annoying boilerplate that is required by the way we run our dropwizard app under the `com.rackspacecloud.blueflood.service.IngestionService` Blueflood interface.