
Individual nodepool .log files have now grown to being > 250mb. This is a bit much to download and go through when you're trying to debug an issue with a particular image. 8-hour rotations seems a bit more useful than 24-hour ... and perhaps even that is a bit long. I don't think we need to extended the number of rotations, I'm not sure really old logs are that helpful. Change-Id: Ia788db809afe470bb9241f17411e4fa97d09ea11