[Lxc-users] Dependencies Use Cases

[Alex Eagar]

Can LXC use cgroups without libcgroup? For that matter, just to be
clear, can LXC use cgroups without cgroup-bin? In what use case would
using LXC without cgroups make sense? Aren't cgroups fundamental to
LXC? If cgroups are fundamental to LXC, then whatever is needed to
make LXC capable of using cgroups needs to be a requirement regardless
of whether that requirement is stable. I don't claim to know
specifically which functionality and or packages are the real
underlying dependencies, but it seems to me that it doesn't make sense
to me to remove a real dependencies, whatever they may actually be,
based on stability. If the dependency is unstable, then the dependent
is unstable. Stability should not come at the price of making a
package purposeless. I'm not saying that is actually what is
happening, but based on my presumptions, which presumptions I am
actively asking you to correct, that is what appears to have occurred
in Ubuntu. Thank you everyone for your contributions. LXC is an
awesome technology and I hope to have it up and running soon.

serge, as a fellow member of the Ubuntu community, please do not refer
to others' efforts as 'papering over' even if it perhaps is in
response to someone saying that your efforts are pointless or stupid.
I apologize for my wording about cgroup-lite. I don't understand the
rational behind it based on my very likely incorrect presumptions, but
I want to understand. Thank you for your contributions.


Alex Eagar



On 11/4/11, Serge Hallyn <serge.hallyn at canonical.com> wrote:
> Quoting Daniel Baumann (daniel.baumann at progress-technologies.net):
>> On 11/04/2011 01:16 PM, Huang Liang wrote:
>> > Check out toft: https://github.com/exceedhl/toft. It provides rpm and
>> > deb packages which already handles the dependencies on centos and
>> > ubuntu.
>>
>> why would one want this instead of using lxc from your distributions
>> repository?
>>
>> > Moreover, it packages the bind and dhcp setup on the host
>> > machine  and ships with pre-created images, saves a lot of time of
>> > hassling around these issues.
>>
>> that particular 'problem' we're going to solve in debian within about a
>> week when lxc provides linux-container (a generic version of something
>> similar what lxcguest in ubuntu and for ubuntu-only does) and live-build
>> therefore can build proper system images for lxc containers that are
>> shipped through .debs and which are going to be prefered over caches in
>> /var/cache/lxc in debians lxc package. don't know what ubuntu has in
>> mind for such use cases.
>
> We aim to fix the two things that lxcguest is currently papering
> over so that the same unmodified ubuntu install can be used in
> kvm, lxc, or on bare metal.
>
> -serge
>
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