[Devel] Re: [libvirt] kernel summit topic - 'containers end-game'

[Serge E. Hallyn]

Quoting Balbir Singh (balbir at linux.vnet.ibm.com):
> On Tue, Jun 23, 2009 at 8:26 PM, Serge E. Hallyn<serue at us.ibm.com> wrote:
> > A topic on ksummit agenda is 'containers end-game and how do we
> > get there'.
> >
> > So for starters, looking just at application (and system) containers, what do
> > the libvirt and liblxc projects want to see in kernel support that is currently
> > missing?  Are there specific things that should be done soon to make containers
> > more useful and usable?
> >
> > More generally, the topic raises the question... what 'end-games' are there?
> > A few I can think of off-hand include:
> >
> >        1. resource control
> 
> We intend to hold a io-controller minisummit before KS, we should have
> updates on that front. We also need to discuss CPU hard limits and
> Memory soft limits. We need control for memory large page, mlock, OOM
> notification support, shared page accounting, etc. Eventually on the
> libvirt front, we want to isolate cgroup and lxc support into
> individual components (long term)

Thanks, Balbir.  By the last sentence, are you talking about having
cgroup in its own libcgroup, or do you mean something else?

On the topic of cgroups, does anyone not agree that we should try
to get rid of the ns cgroup, at least once user namespaces can
prevent root in a container from escaping their cgroup?

thanks,
-serge
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