Simple example of a docker container that supports dRunner.
drunner install drunner/helloworld helloworld run
drunner install drunner/helloworld [SERVICENAME]
on the host calls the install script in the container. It adds the scripts for
the other commands to the host (in our case just help and run). SERVICENAME
defaults to helloworld.
You can then use
to execute the 'run' script, which launches the container and runs helloworld.