[lxc-users] How to cancel lxc-autostart

[CDR]

After I reboot, the LXC service will start automatically all the
containers marked for auto-start. I have not found a way to stop that
mechanism if I absolutely need that the containers to not start.
Suppose I need to umount the partition to issue an "fsck", etc. How do
I preempt the automatic behavior?
It is something like the Iron Dome. Hundreds of containers are on the
air and will be started, how do you override this behavior?

On Fri, Aug 8, 2014 at 4:22 PM, Łukasz Górski <l.gorski at lokis.info> wrote:
> Could you perhaps clarify when exactly do you want this command to be
> invoked? Before the reboot or after? If after, perhaps I am mistaken, but it
> doesn't seem to make any sense whatsoever. I suppose you'd need to run it in
> a specific timeframe before the containers are started - how much time it
> takes from the moment you get a working shell after the reboot to the point
> when container booting process starts? If you want to run it before the
> reboot, then I guess some shell scripting most likely would do to disable
> autostart and the re-enable it back again after reboot.
>
> Pozdrawiam
> Łukasz Górski
> Biuro Obsługi Klienta LOKIS
> www.lokis.info
>
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>
> 2014-08-08 21:21 GMT+02:00 CDR <venefax at gmail.com>:
>>
>> Suppose you manage a box with 300 containers, all on autostart=1. One day
>> you reboot the box but you need to avoid all the contaoners to start. There
>> should be a command like
>> lxc-cancel-autostart.
>> Does it make sense?
>>
>>
>> On Friday, August 8, 2014, Harald Dunkel <harald.dunkel at aixigo.de> wrote:
>>>
>>> I am not familiar with Ubuntu's setup, but assuming it supports
>>> sysv-init I would suggest to omit lxc in a dedicated run level.
>>>
>>> If your default run level is 2 (specified in /etc/inittab), then
>>> you could use update-rc.d to omit lxc in run level 3, e.g.
>>>
>>>         # update-rc.d lxc start 20 2 4 5 . stop 20 0 1 3 6 .
>>>
>>> This means lxc is started in run levels 2, 4 and 5, and
>>> stopped in 0, 1, 3 and 6.
>>>
>>> If you need to boot without starting the containers, then you
>>> can choose run level 3 on the kernel command line at boot time,
>>> e.g.
>>>         linux /boot/vmlinuz root= ... quiet 3
>>>
>>> grub2 allows you to modify the kernel command line before booting.
>>> Using telinit you can change the run level at run time, e.g.
>>> 'telinit 2' to switch to run level 2 (to start your containers).
>>>
>>>
>>> Hope this helps
>>> Harri
>>>
>>> _____________________________________________he__
>>>
>>> lxc-users mailing list
>>> lxc-users at lists.linuxcontainers.org
>>> http://lists.linuxcontainers.org/listinfo/lxc-users
>>
>>
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