[lxc-users] How to auto-start LXC containers with LXD

[Ozan Hazer]

Ah it was more like the page about lxd, not the announcement...
Announcements expire you know and I didn't check how up-to-date it was...
I couldn't express it well I think, I mean I misinterpreted the page that
was just advertising the lxd (http://www.ubuntu.com/cloud/tools/lxd).
I missed the fact that it's not mature yet and dived into it that's what I
was trying to say...





> ---------- Forwarded message ----------
> From: "Stéphane Graber" <stgraber at ubuntu.com>
> To: LXC users mailing-list <lxc-users at lists.linuxcontainers.org>
> Cc:
> Date: Wed, 6 May 2015 11:27:56 +0200
> Subject: Re: [lxc-users] How to auto-start LXC containers with LXD
> On Wed, May 06, 2015 at 11:46:54AM +0300, Ozan Hazer wrote:
> > Yeah, I wish I realized that before setting up everything :\
> > I agree with the central configuration thing, it reduces the portability
> > too at first glance. However not sure if it should be considered as a
> > deficiency...
> > lxd is designed this way and instead of manually doing things (copying
> > etc.) it provides tools for it which attracted me in the first place. I
> can
> > do what lxd does with lxc-* commands already but lxd is much easier to
> use
> > and gives the feeling of vagrant and docker.
> > There is lxc copy and move and I bet (or hope?) there will be some export
> > or backup command in the future... The configurations are kept in sqlite
> > (/var/lib/lxd/lxd.db) so extracting the config should not be that hard
> > (hope again :) )
> It's really a different design. For LXD we want more input validation,
> we want to be able to inherit from profiles and we generally need to
> store more complex constructs than can be stored in the LXC config file.
> So that and speed (it turns out opening and reading thousands of files
> isn't very quick) is what made us use a database.
> While it's not in our immediate roadmap, commands to import/export
> containers as we do images may be a possibility and may be covering your
> needs.
> >
> > The problem that hit me is lxd is apparently is not mature enough and the
> > announcement that ubuntu made and advertised misleaded me since I'm a
> > developer and not following server technologies closely.
> Not sure how our announcement is misleading...
> For the Ubuntu 15.04 announcement, I wrote:
> """
> Ubuntu 15.04 ships with LXD 0.7. This is the result of an intense 6
> months of development and while not ready for production workloads, it's
> definitely ready for experimentation.
> """
> And upstream, outside of bugfix-only releases, we've always included
> this in our announcements:
> """
> Please note that it's still early in the LXD development and that
> current LXD isn't intended for production use and comes with no support
> statement from upstream.
> (reported bugs and patches will be included in the next release)
> """
> > For the auto-startup issue I ended up with writing a systemd job for
> > startup and I guess I'll need smt. else for a clean shutdown too... I
> have
> > atlassian products (jira & stash) running inside the container and they
> are
> > not starting for some reason... Still investigating...
> Getting the power state stuff done shouldn't be too difficult. I believe
> we already have the DB field, so all that's needed is code to attach the
> SIGPWR signal with a shutdown function which stops all containers and
> mark their states in the power_state field, then another function run at
> startup just needs to read the power_state field, start any container
> that's set to 1 and then unset the field.
> We'd certainly welcome a branch for that.
> >
> >
> >
> > > ---------- Forwarded message ----------
> > > From: Andrey Repin <anrdaemon at yandex.ru>
> > > To: Serge Hallyn <lxc-users at lists.linuxcontainers.org>
> > > Cc:
> > > Date: Tue, 5 May 2015 19:24:52 +0300
> > > Subject: Re: [lxc-users] How to auto-start LXC containers with LXD
> > > Greetings, Serge Hallyn!
> > > >> How do I configure LXC containers so that it'll start automatically
> in
> > > >> Ubuntu 15.04 and LXD?
> > > >> Ubuntu documentation states that the containers with the
> configuration
> > > >> lxc.start.auto=1 will be started on boot however I couldn't find the
> > > config
> > > >> file for the container.
> > > > For default privileged containers the config file is
> > > > /var/lib/lxc/$containername/config
> > > He did meantion LXD explicitly.
> > > There's no "config" in LXD containers. Which I find a certain
> deficiency of
> > > the design. If I can't get a backup of entire container together with
> > > config,
> > > it has no use for me.
> > >
> > > --
> > > With best regards,
> > > Andrey Repin
> > > Tuesday, May 5, 2015 19:23:34
> > > Sorry for my terrible english...
> >
> >
> > M.Ozan Hazer
> > _______________________________________________
> > lxc-users mailing list
> > lxc-users at lists.linuxcontainers.org
> > http://lists.linuxcontainers.org/listinfo/lxc-users
>
> --
> Stéphane Graber
> Ubuntu developer
> http://www.ubuntu.com
> _______________________________________________
> lxc-users mailing list
> lxc-users at lists.linuxcontainers.org
> http://lists.linuxcontainers.org/listinfo/lxc-users


M.Ozan Hazer
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