[lxc-devel] [PATCH] lxc-debian: support systemd as PID 1

[Antonio Terceiro]

On Fri, Nov 21, 2014 at 05:24:19PM -0500, Michael H. Warfield wrote:
> On Fri, 2014-11-21 at 04:41 +0000, Serge Hallyn wrote:
> > Quoting Antonio Terceiro (terceiro at debian.org):
> > > Containers with systemd need a somewhat special setup, which I borrowed
> > > and adaptec from lxc-fedora. These changes are required so that Debian 8
> > > (jessie) containers work properly, and are a no-op for previous Debian
> > > versions.
> > > 
> > > Signed-off-by: Antonio Terceiro <terceiro at debian.org>
> 
> > Michael and/or Stéphane may have other comments , but as you say this
> > will not regress non-systemd hosts so looks like a step in the right
> > direction to me, thanks.
> 
> While I did add code to the config.c file to detect systemd as the init
> system and default it to enabling autodev, I would recommend adding
> "lxc.autodev = 1" to containers generated by the template that are known
> to be using systemd.  It can't go into the common config files because
> of variability in distro revs and systemd utilization and still leaves
> open the problem when a container is upgraded to a systemd release from
> a non-systemd release, but that's what the runtime code is there for.
> 
> There's also the problem with lxc.kmsg and systemd-journald which, I
> guess, doesn't impact this case because Debian is using systemd but not
> journald?  I haven't confirmed that but noticed it in some articles.  If
> journald is being used, you have to set "lxc.kmsg = 0" or journald will
> end up in a messaging echo loop between /dev/console and /dev/kmsg.

Thanks for the feedback. I will post an updated patch soon.

-- 
Antonio Terceiro <terceiro at debian.org>
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