The goal of docker-stream is to be able to chain containers just like one chain linux/unix commands using pipes (like ps -aux | grep -v grep | whatever). Each container's output becomes the next one's input. At the moment, the stream is described in a yaml file. You can refer to test.yml as an example of such a file.
The idea behind it is to be able to build complex processes while keeping each docker images involved as simple as possible. It is an attempt to apply the single responsibility principle to docker images.
This project is a poc to validate this idea.