I'm using Windows 10 and Docker version 18.03.1-ce, build 9ee9f40.
I'm trying to do docker run -it --volume="./Users:/app" ubuntu:16.04 or docker run -it -v Users:/app ubuntu:16.04 but it's not working, my directory in Docker still empty.
I have read this post and it doesn't help.
UPD: Solved.
Important step was to go to Docker Settings > Shared Drives and uncheck and check your shared drive again.
Then you can mount your volume like this:
docker run -v /host_mnt/c/Users/User/Path:/docker/path image