Docker for Windows : volumes are empty

Question

I updated from Windows 7 to Windows 10 few weeks ago : I was using Docker Toolbox/Virtual Box to work with Docker and I read Docker for Windows was recommended (newest application) but it is a pain for me to make it work as it used to with Toolbox.

I created a docker machine using hyperv and running docker hello-world works.

But when it comes to use volumes, a strange behavior happens : No error messages, container working perfectly but my volume is empty of files inside, I only have folders.

I used to have troubles with Shared Drives but I managed to have it working (through Docker for Win GUI).

Here is a command I try which run a container but does not map Windows files (only folders) :

docker run -ti -v folders/:data/folder alpine

I am running Docker version 18.03.0-ce

Any idea? If I am not clear, please let me give more information! Thx

Answer 1

First make sure that your drive is shared (see image below).

One important note is that if you change your windows password then your shared drives will not be able to mount. To fix this simply unshare and reshare your drive or press "Reset credentials...".

Thanks to ctliv for pointing that out in this discussion: https://github.com/docker/for-win/issues/25