This Ubuntu image uses a new “lean process manager” that simplifies management multi-process containers.
This image provides a basic Apache container which is a great starting point for any www-based application. Check the “Try It Out” section on the github link below to get a quick feel for how it works. When you try it, there's a tour and more information available at the default web-site provided in the container.
You can read more here: https://github.com/garywiz/chaperone-docker