This is the Prosody Docker image building repository. Its only really designed to be used on the Prosody build server for pushing to the [Docker registry](https://registry.hub.docker.com/repos/prosody/).
It works by coping in a recently built `deb` file and running the install on the system.
Where argument 1 is a pointer to the build `deb` file that you'd like to make an image from and 'version_tag' is the tag you'd like to push to the Docker registry with.
You can specify multiple tags by adding additional tag names to the end of the command. This is useful where a for example release 0.10.4 is made which also consitutes 'latest', '0.10-nightly', '0.10.4', '0.10' images.
After running the script will clean up any images generated (but not the base images - for efficiency purposes).