[Bug 1457321] Re: lxc-stop does not shut down container

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 219-7ubuntu6

---------------
systemd (219-7ubuntu6) vivid; urgency=medium

  * Fix assertion crash with empty Exec*= paths. (LP: #1454173)
  * systemd-fsckd autopkgtest: Stop assuming that
    /etc/default/grub.d/90-autopkgtest.cfg exists.
  * systemd-fsckd autopkgtest: Add missing plymouth test dependency.
  * debian/tests/boot-smoke: Allow 10 seconds for systemd jobs to settle down.
  * Fix "tentative" state of devices which are not in /dev (mostly in
    containers), and avoid overzealous cleanup unmounting of mounts from them.
    (LP: #1444402)
  * journal: Gracefully handle failure to bind to audit socket, which is known
    to fail in namespaces (containers) with current kernels. Also
    conditionalize systemd-journald-audit.socket on CAP_AUDIT_READ.
    (LP: #1457054)
  * Add sigpwr-container-shutdown.service: Power off when receiving SIGPWR in
    a container. This makes lxc-stop work for systemd containers.
    (LP: #1457321)

 -- Martin Pitt <martin.pitt at ubuntu.com>  Thu, 21 May 2015 14:47:46
+0200

** Changed in: systemd (Ubuntu Vivid)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1457321

Title:
  lxc-stop does not shut down container

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Vivid:
  Fix Released
Status in systemd source package in Wily:
  Fix Released

Bug description:
  lxc-stop sends SIGPWR to a container's pid 1 to notify it that it
  should shut down. This merely starts sigpwr.target right now, but
  nothing is hooked into it. That's deliberate for "real iron" systems
  as there it's usually UPSes sending that, which should be handled by
  e. g. nut, not directly systemd. However, for containers I believe
  that's a safe default.

  For the record, in upstart we had /etc/init/shutdown.conf . This is
  wrong, as it breaks UPS responders like nut (and it also halts instead
  of poweroff). But we should provide this for containers under systemd.

  https://lists.linuxcontainers.org/pipermail/lxc-
  users/2015-May/009279.html

  SRU TEST CASE:
  --------------
  - Create a vivid LXC container (system or unprivileged)
  - Try to lxc-stop it. With current vivid it will do nothing/hang, with the proposed version it will shut down as expected.

  REGRESSION POTENTIAL:
  ---------------------
  - This new unit is only active in containers (LXC, docker, nspawn, etc.). There a possible regression is that someone is running/testing nut or a similar UPS responder in a container, but that seems like a theoretical scenario only.
  - There is no change for VMs or "real" hardware.

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