1:40 a.m.
On Mon, Feb 26, 2024 at 07:19:48AM +0100, Matthias Apitz wrote:
El día viernes, febrero 23, 2024 a las 08:24:58 -0800, Robin Lee
Powell via Podman escribió:
>
>
> On Fri, Feb 23, 2024 at 02:43:48PM +0100, Matthias Apitz wrote:
> > > >
> > > > The Dockerfile which is used to build the container end with:
> > > >
> > > > $ tail -5 suse/Dockerfile
> > > > EXPOSE 22 8076 3045
> > > >
> > > > ENTRYPOINT /usr/local/bin/start.sh
> > > >
> > > > STOPSIGNAL SIGQUIT
> > > >
> > > > Any ideas what I do wrong?
> > > >
> > > > matthias
> > > >
> > > Most likely the program running in start.sh is ignoreing the SIGSTOP
signal.
> >
> > The start.sh gets build from Dockerfile in the image:
> >
> > ...
> > RUN echo "/etc/init.d/postgres start" >>
/usr/local/bin/start.sh
> > RUN echo "/usr/local/bin/initSunRise.sh" >>
/usr/local/bin/start.sh
> > RUN echo "/usr/sbin/sshd -D" >>
/usr/local/bin/start.sh
> > RUN chmod 0755 /usr/local/bin/start.sh
> >
> > EXPOSE 22 8076 3045
> >
> > ENTRYPOINT /usr/local/bin/start.sh
> >
> > STOPSIGNAL SIGQUIT
>
> You know, I was pretty confused by your situation until I saw that
> line. :)
There must be something more magic. This is inside the container:
26ef31df12f6:~ # /etc/init.d/postgres stop
Stopping PostgreSQL: ok
26ef31df12f6:~ # ps ax
PID TTY STAT TIME COMMAND
1 ? Ss 0:00 /bin/sh -c /usr/local/bin/start.sh
46 ? S 0:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
180 ? Rs 0:00 sshd: root@pts/0
182 pts/0 Ss 0:00 -bash
217 pts/0 R+ 0:00 ps ax
26ef31df12f6:~ # cat /usr/local/bin/start.sh
/etc/init.d/postgres start
/usr/local/bin/initSunRise.sh
/usr/sbin/sshd -D
26ef31df12f6:~ # kill -9 1
Nothing happens. The proc 1 keeps running.
That's because of https://unix.stackexchange.com/a/457650/52312 ;
killing the sshd process (46 in your example) should do fine.
Side comment: I don't actually recommend running sshd in containers;
it tends to lead to thinking incorrectly about how to use containers
and what they're for. Use `podman exec` instead.
Example:
rlpowell@stodi> cat Dockerfile
FROM docker.io/library/debian:bullseye
COPY crap.sh /tmp/crap.sh
ENTRYPOINT bash /tmp/crap.sh
rlpowell@stodi> docker run --rm -it bashtest
In another window:
rlpowell@stodi> podman exec -it charming_goldstine bash
root@80d44555a09b:/# ps afux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 4 0.0 0.0 4032 3216 pts/1 Ss 06:35 0:00 bash
root 341 0.0 0.0 6760 2912 pts/1 R+ 06:35 0:00 \_ ps afux
root 1 0.0 0.0 2484 508 pts/0 Ss+ 06:35 0:00 /bin/sh -c bash
/tmp/crap.sh
root 2 0.0 0.0 3900 2684 pts/0 S+ 06:35 0:00 bash /tmp/crap.sh
root 3 0.0 0.0 2396 496 pts/0 S+ 06:35 0:00 \_ sleep 9999
root@80d44555a09b:/# kill -9 1
root@80d44555a09b:/# ps afux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 4 0.0 0.0 4032 3216 pts/1 Ss 06:35 0:00 bash
root 342 0.0 0.0 6760 2864 pts/1 R+ 06:35 0:00 \_ ps afux
root 1 0.0 0.0 2484 508 pts/0 Ss+ 06:35 0:00 /bin/sh -c bash
/tmp/crap.sh
root 2 0.0 0.0 3900 2684 pts/0 S+ 06:35 0:00 bash /tmp/crap.sh
root 3 0.0 0.0 2396 496 pts/0 S+ 06:35 0:00 \_ sleep 9999
root@80d44555a09b:/# kill -9 3
root@80d44555a09b:/# %
rlpowell@stodi>