Host-mounted volumes on Windows / Mac

[p-a-s-c-a-l]

See https://docs.docker.com/engine/userguide/containers/dockervolumes/#mount-a-host-directory-as-a-data-volume

Important: "If you are using Docker Machine on Mac or Windows, your Docker daemon has only limited access to your OS X or Windows filesystem. Docker Machine tries to auto-share your /Users (OS X) or C:\Users (Windows) directory."

To be able mount additional folder of the host add it to shared folders:

Edit /mnt/sda1/var/lib/boot2docker/profile of the boot2docker vm and add

mkdir -p /w/git_work
mount -t vboxsf -o uid=1000,gid=50 w/git_work /w/git_work