[logback-user] Should logback.xml be in part of a web app?

Hi: Can you please give some recommendation if I should include logback.xml in an EAR or outside on a file system? In the past, I would put it outside on a file system so that I can change the logging level on the fly when a need arises to log in detail. However, in this new company which I recently join, it prefers that everything be packaged in a EAR to "reduce work" for the deployment team. Given such option, how do I change the level of logging easily if the logback.xml is packaged in an EAR? Can I still be able to change the level of logging programmatically on the fly, or perhaps using JMX? Will I be able to save the change into the file in the EAR? Thanks, Keith