[lxc-users] Attach a lxc container to an existing cgroup ?

[Jäkel, Guido]

Hi Serge,

i don't look into the code nor test it, but said it's a global option what will happen if one use -s lxc.cgroup.pattern=foo as an option to lxc-start or as a "local" configuration file option?

Guido

>-----Original Message-----
>From: lxc-users-bounces at lists.linuxcontainers.org [mailto:lxc-users-bounces at lists.linuxcontainers.org] On Behalf Of Serge
>Hallyn
>Sent: Friday, March 21, 2014 2:19 AM
>To: LXC users mailing-list
>Subject: Re: [lxc-users] Attach a lxc container to an existing cgroup ?
>
>Yes it's global.
>
>I think a patch introducing 'lxc.cgroup.use' into the container
>configuration file, where 'lxc.cgroup.use = /lxc/dev1' would mean
>use that cgroup (not a pattern) might be good.
>
>-serge
>
>Quoting Sébastien Kurtzemann (fai.ml at kurtzemann.fr):
>> lxc.cgroup.pattern is a global directive, no ?
>>
>> I can't define it per container ?
>> so it's not possible to set "custo1.dev" container into /custo1 cgroup
>> and "custo2.dev" into another /custo2 cgroup
>>
>>
>> 2014-03-20 0:42 GMT+01:00 Serge Hallyn <serge.hallyn at ubuntu.com>:
>> > Quoting Sébastien Kurtzemann (fai.ml at kurtzemann.fr):
>> >> Hi all,
>> >>
>> >> My idea is to create a "parent" cgroup which defined customer's
>> >> ressources like cpu, mem, ...
>> >> For example I've a cgroup called "customer1" on the subsystem "cpuset"
>> >> on which I pin the first cpu (cpuset.cpus = 1)
>> >>
>> >> In this "parent" cgroup I wanted 3 containers which represent customer
>> >> environments (dev, preprod, prod)
>> >> Each environements has specific ressources (dev 20% cpu, preprod 20%, prod 60%)
>> >>
>> >> Can we attach these new containers to the existing "parent" cgroup ?
>> >
>> > You can set
>> >
>> >         lxc.cgroup.pattern = /customer/dev/%n
>> >
>> > which will put the container into /customer/dev/$name
>> >
>> > -serge
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