To run daemonized:
$ docker run -d if6was9/minecraft
If you want to run interactively:
$ docker run -it if6was9/minecraft
You might want to store your minecraft world outside the container.
$ docker run -d -v <myhostdir>:/minecraft/data if6was9/minecraft
To build an image
docker build . -t minecraft
To tag for ready to push:
docker tag minecraft if6was9/minecraft