Runs vm with docker engine based on ailispaw/barge. Instead of original it does not map any ports on localhost and uses dhcp assigned IP instead. This allows running multiple isolated docker environments on signle machine (per project envs).
docker-env.sh script retrieves dynamically assigned ip of vm and returns shell script for evaluating in current context: eval $(./bin/docker-env.sh) for setting up docker environment variables.
$ vagrant up
$ eval $(./bin/docker-env.sh)
$ docker ps
...
$ vagrant halt