A Docker image that allows to use libguestfs-tools for accessing and modifying virtual machine disk images mounted as volumes.
$ docker build -t guestfs .
$ docker run --rm -it -v my_image.vmdk:/my_image.vmdk guestfs --ro -i -a /my_image.vmdk
Welcome to guestfish, the guest filesystem shell for
editing virtual machine filesystems and disk images.
Type: 'help' for help on commands
'man' to read the manual
'quit' to quit the shell
/dev/sda1 mounted on /