[systemd-devel] stopping a systemd-nspwan container

[Kevin Wilson]

Hi,
I tried again and now it did work.
maybe I was wrong somewhere, sorry.
KW



On Sat, Mar 22, 2014 at 10:40 PM, Kashyap Chamarthy <kchamart at redhat.com>wrote:

> On Sat, Mar 22, 2014 at 04:35:19PM +0200, Kevin Wilson wrote:
> > Hello,
> >
> > I had created a container according to systemd-nspwan man page and
> > ran it by:
> > systemd-nspawn -D/srv/mycontainer
> >
> > I killed it by  pkill systemd-nspaw (and not by poweroff from within the
> > container).
> >
> > Now, running "machinectl" shows that the container still runs:
> > machinectl
> > MACHINE                          CONTAINER SERVICE
> > mycontainer                      container nspawn
> >
> > 1 machines listed.
> >
> > but the following is strange:
> >
> > Running:
> > systemd-nspawn -D/srv/mycontainer
> > gives:
> > Spawning namespace container on /srv/mycontainer (console is /dev/pts/2).
> > Init process in the container running as PID 2305.
> > Failed to register machine: File exists
> > Container failed with error code 239.
> >
> > (and running it again gives the same result but with a different pid
> > number).
> >
> > Is there a way to shut down the container which is running in such a
> > scenario ?
>
> Hmm, I'm able to shut it down gracefully. I frequently do package builds
> in systemd-nspawn.
>
> Reading your email, I did this below test:
>
> On one terminal:
>
>     $ systemd-nspawn -D /srv/testcontainer
>     Spawning container testcontainer on /srv/testcontainer. Press ^] three
>     times within 1s to abort execution.
>
>
> On another terminal, invoke machinectl:
>
>     $ machinectl
>     MACHINE                          CONTAINER SERVICE
>     testcontainer                    container nspawn
>
>     1 machines listed.
>
>
> Kill the systemd-nspawn process:
>
>     $ pkill systemd-nspawn
>
>
> At this point, on the other terminal you see KILL signal invokcation:
>
>     [. . .]
>     -bash-4.2#
>     Container testcontainer terminated by signal KILL.
>     $
>
>
> Invoke machinectl again:
>
>     $ machinectl
>     MACHINE                          CONTAINER SERVICE
>
>     0 machines listed.
>
>     $ machinectl status testcontainer
>     Could not get path to machine: No machine 'testcontainer' known
>     $
>
>
> Versions:
>
>     $ uname -r; rpm -q systemd
>     3.13.4-200.fc20.x86_64
>     systemd-210-7.fc21.x86_64
>
>
> --
> /kashyap
>
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