[CRIU] CLI Improvement

[Pavel Emelyanov]

On 08/27/2014 02:17 AM, Saied Kazemi wrote:
> Pavel,
> 
> Please see the attached patch.  We can simplify CRIU command line options by using --root and 
> dropping --aufs-root when dumping a Docker container.  The less command line options, the better :)

Yup. And it's pretty natural -- the option would specify the root of
the tasks tree we dump. Patch applied :)

> On a related note, I am happy to let you know that CRIU can successfully dump and restore Docker
> containers using the UnionFS graph driver.  Fortunately, the /proc/<pid>/map_files for UnionFS does
> not have the issue that we saw with AUFS.

That's great news! How do you think, when would you be able to write a
HOWTO wiki page about C/R of Docker containers?

Thanks,
Pavel