Creating a docker image

[PumpedSardines]

I suggest adding a Dockerfile and creating a docker image so people can start this project with more ease.

I would be willing to create a PR for this if this feature is wanted

[octachrome]

Feel free to open a PR. This should be quite simple. Might be useful to look in the ansible directory, where there is a docker file for testing the blue/green deployment I use on the public server, though this is more complicated than what you need.