Make docker image have persistent state

[abetusk]

Not sure how to do this exactly but there should be an option to run the docker image so that state doesn't get blown away when the docker container stops running.

References

• http://stackoverflow.com/questions/23544282/what-is-the-best-way-to-manage-permissions-for-docker-shared-volumes/27021154
• https://medium.com/@ramangupta/why-docker-data-containers-are-good-589b3c6c749e
• http://www.tech-d.net/2013/12/16/persistent-volumes-with-docker-container-as-volume-pattern/
• http://docs.docker.com/userguide/dockervolumes/