[lxc-users] ps -eo lxc no longer works

[Jäkel, Guido]

Hello,

can't verify this in a hurry, but IMHO this more likely caused by others than LXC, like a regression in ps. The top command also offer a column for this, you might to have to enable it via the 'f'(ields) menu. 

Compare the ouput of 'ps --version'; maybe you can try to use the older ps binary on the newer ubuntu to check it out in a quick way. 

Greetings
Guido

-----Ursprüngliche Nachricht-----
Von: lxc-users [mailto:lxc-users-bounces at lists.linuxcontainers.org] Im Auftrag von Forest
Gesendet: Donnerstag, 13. Februar 2020 23:33
An: lxc-users at lists.linuxcontainers.org
Betreff: [lxc-users] ps -eo lxc no longer works


When I use the ps command's "lxc" format specifier, for example:

ps -eo pid,lxc,command

The second output column is supposed to show "the name of the lxc container within which a task is running.  If a process is not running inside a container, a dash ('-') will be shown."  This worked fine until I upgraded from ubuntu 19.04 to 19.10, which brought me from lxc 3.03 to 3.04.  Now, that column always contains a dash instead of the container name, even for processes that are running inside a container.

Can someone explain why this broke, and how to fix it?

My containers are unprivileged, in case that matters.
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