Windows 10 上的 Docker：如何将现有容器和图像移动到新位置？

Question

I want to move my Docker containers & images from C: to elsewhere. All containers/images are Windows-ones.

I've changed the Docker data files location using the data-root configuration option, restarted the daemon and desktop client, and verified the data root location with docker info .

The problem is, that none of the existing containers & images are moved to the new location. Just the desktop client's configuration files. The desktop client doesn't seem to offer any means for (forcing/persuading it) moving the data to new location.

Tried to address the issue by manually copying C:\\ProgramData\\Docker contents to the new location, but everything sooner or later fails when copying special system files, such as bootmgr , inside images in windowsfilter (Running robocopy in elevated PowerShell or copying in Explorer, doesn't matter).

Is there any way around this, to move existing images & containers without breaking everything? I don't have a Linux machine at my disposal I could use to mount the NTFS volumes and do the copying there.

Answer 1

I found that setting data-root would result in new images being created on the desired drive but existing images would continue to run from the system drive (C:\\). I even tried deleting the windowsfilter folder on the C:\\ drive but when running the container the images were re-downloaded to the C:\\ drive instead of the configured data-root location.

The thing that worked for me was to perform a factory reset from the troubleshooting menu (The in docker desktop is a shortcut to this menu). This will clean up the windowsfilter folder in your system drive - However I had to run factory reset twice as the first time failed.

After reset has completed, go to Settings->Docker Engine and add a data-root entry folder on another drive:

{
  "registry-mirrors": [],
  "insecure-registries": [],
  "debug": false,
  "experimental": false,           <-- remember to add a comma here
  "data-root": "E:\\dockerdata"
}

Then click Apply & Restart