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Other piece of info: I have already checked out the disk image location which is mapped for docker desktop. It is a vhdx file. I was not able to open it with Oracle virtual box - it says it is not a supported version file. I tried opening in Hyper V manager, the VM is getting listed: DockerDesktopVM.
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Debian: /var/lib/docker/ Windows: C:\ProgramData\DockerDesktop. MacOS: ~/Library/Containers/com.
In a File Browser you can gain access to these files by opening the folders with a file browser with elevated privileges. (for read/write access) Try Alt+F2 and gksudo nautilus , then hit Ctrl+L and write /var/www and hit Enter in order to be directed to the folder.
In a default installation, layers are stored in C:\ProgramData\docker and split across the "image" and "windowsfilter" directories. You can change where the layers are stored using the docker-root configuration, as demonstrated in the Docker Engine on Windows documentation. Only NTFS is supported for layer storage.
(This is for case of WSL2. It is my answer to a similar question)
Docker images are managed by docker's own VM. The path /var/lib/docker given by "docker info" is relative to docker's host file system, not your container's file system. The mount points are different for them. You can view docker's host file system in either of the following ways:
You can mount the host file system to a container directory. Such as,
docker run -v /:/data -it ubuntu /bin/bash
This command runs a shell in Ubuntu docker image, mounting docker's file system to /data directory. There you can find a complete file system under /data, including the ./var/lib/docker. If you want, you can "chroot /data" in the shell prompt to have a better view.
When docker is enabled with your distribution in WSL2, you can always check your containers in your distribution /mnt directory. Docker has mounted everything for you.
/mnt/wsl/docker-desktop-data/data/docker
If you are seasoned enough, you may find the actual location of the virtual disk of all the data in your Windows directory.
C:\Users\your_name\AppData\Local\Docker\wsl\data\
Or probably just for fun:
\\wsl$\Ubuntu\mnt\wsl\docker-desktop-data\data\docker
Unfortunately I haven't tried to dive into them.
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As stated on This page of docker forums you can run plain debian docker image with shell and change it's namespace to docker host.
The terminal command you need to run is:
>> docker run -it --privileged --pid=host debian nsenter -t 1 -m -u -i sh
as I understand after running debian image as terminal (-it option), you need to call command nsenter with specified parameters to change namespace to host machine. After this your container becomes Docker host and you can view all it's files.
after this command you can access docker images simply by calling:
>> cd ls /var/lib/docker/
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