[lxc-devel] [PATCH 1/1] lxc-create: add zfs support

[Serge Hallyn]

Quoting Stéphane Graber (stgraber at ubuntu.com):
> I'm not a big user of lxc-clone (yet) but I think as we redesign that
> part of the code, consistency across backend should be a primary goal
> even if that causes some slight changes in behaviour from previous
> implementations.

Ok it finally dawned on me that if we want consistency, then we can't
do it the new way.  LVM backed containers are the primary counter
example.  To have $lxc_path/$lxc_name be lvm-backed would require
the LV to be mounted at host boot.

So what I'm going to do is implement a few more backing stores and
a tiny temporary toy lxc-clone c program for easier testing, with
zfs for now switched to only its rootfs being a separate zfs unit.
We can't decide to switch all backing stores to the other way, but
if we decide to later support zfs and btrfs having $lxcpath/$lxcname
be separate units/subvolumes, it shouldn't be a big deal to special
case that and support both.  But I'd rather not complicate what I'm
doing with that now.

-serge