[Lxc-users] how to limit disk space in lxc

[Serge Hallyn]

Quoting Fajar A. Nugraha (list at fajar.net):
> On Thu, Oct 25, 2012 at 4:11 PM, 宣铭艺 <xuanmingyi at gmail.com> wrote:
> > Dear all:
> > The problem is that,how can we limit the disk space in lxc.Now I use the
> > default config.
> > And the container can access all space in host.can we use lvm or other tools
> > to limit it?
> > And how :)
> 
> simplest solution: place the container rootfs in an LV.
> 
> You need to create and format the LV and move the rootfs MANUALLY
> after the container is created though, as AFAIK no template has the
> ability to "create a rootfs in an LV of this size".

-B option to lxc-create specifies the backing store type.

sudo lxc-create -t ubuntu -B lvm -n u1

will default to 500M rootfs with ext4, or

sudo lxc-create -t ubuntu -B lvm -n u1 --fssize 2G --fstype xfs

-serge