Docker volume/directory mounting

Question

Hello,

I'm trying to mount a directory from the host machine into the docker container.
 
I've tried to following command to start the container:
docker run -i -t -v /c/Users/Administrator/Desktop/test/:/c/test --name=test1 windowsservercore:latest cmd.exe 

The directory C:\Users\Administrator\Desktop\test is existing and there are files in it.
But after the start of the container the dir C:\test does not appear inside the container.

I'm using /C/ because I've seen it here: https://docs.docker.com/userguide/dockervolumes/
docker run -v /c/Users/<path>:/<container path ... (Windows)

Is this a bug or do I need change something on the folder permissions?

Answer 1

Looks like -v is not yet supported in TP3

https://msdn.microsoft.com/virtualization/windowscontainers/about/work_in_progress#GeneralfunctionalityAllnon_C__drivesareautomaticallymappedintonewcontainers

You can try a workaround. Cautious: Its not quite the same as volumes in Docker container.

Steps:

1. Go to disk manager and create a vhdx and attach it.

2. Format the new disk and use it as a volume.

3. Run the container without any -v option.

By default all volumes other than "C:" is visible inside the container. Problem is all the containers might access this volume.

I am sure Windows will fix this in release version if not earlier.

--Tapan.

Answer 2

Thank you. Then I will look forward to the next TP to continue my tests. Thanks also for the workaround but I need separate directories for each container.