According to this docker-containerizer doc <http://mesos.apache.org/documentation/latest/docker-containerizer/>:
"The containerizer also supports optional force pulling of the image. It is set disabled as default, so the docker image will only be updated again if it’s not available on the host. To enable force pulling an image, force_pull_image has to be set as true." I haven't been able to figure out how to enable force_pull_image for mesos-slave. There are hints here <https://issues.apache.org/jira/browse/MESOS-1886> but still not clear to me. Any additional hints appreciated.
