docker-sync

# this command syncs docker-machine running on virtualbox with your current working directory
# replace "/app/user" with the path where your app will be mounted on the docker container
# $(pwd) this will return your local folder and sync it with the equivalen folder on virtualbox 
# make sure to stop your docker-machine before running this command
VBoxManage sharedfolder add DFC  --automount --name /app/user --hostpath $(pwd)