unshare causes breakage in docker

Justin Cattle j at ocado.com
Wed Apr 28 09:55:18 CEST 2021

Googling around, there are a few ways.

It looks like this could be the most consistent:

grep -E ":/docker/.+$" /proc/1/cgroup

..which is looking for cgroups under a docker cgroup

It may be refined to:

grep -E ":/docker/[0-9a-f]+$" /proc/1/cgroup

..but I can't say that for sure.

What do you think, does that sound reasonable ?


On Wed, 28 Apr 2021 at 07:58, Thomas Lange <lange at cs.uni-koeln.de> wrote:

> >>>>> On Tue, 27 Apr 2021 21:05:37 +0100, Justin Cattle <j at ocado.com>
> said:
>     > Can we somehow make unshare vs chroot an option ?  Or, even better
> perhaps, detect docker
>     > and don't use unshare in that case ?
> Do you know how to detect that the process is running inside docker?
> --
> viele Grüße Thomas


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