title: how to create Docker image from ROS packges?
body: <p>I want to create a Docker Image, which includes my ROS packages that I created in catkin_workspace.</p>
  
  <p>I have already tried: create a container form official ros-kinetic-xenial. Create a catkin_workspace and send my packages into it. And create a image with docker commit.</p>
  
  <p>Is there an another way to do that ? (to hold just Binaries and to make image smaller)</p>
  
  <p>thanks</p>