Nested LXD, how?

[Martinx - ジェームズ]

Guys,

 I need to create 4, or more, LXD containers, inside 1 LXD container.

 How to do that?

 The first LXD container, is running on a KVM (or bare-metal) host,
with Ubuntu 14.04 + LXD 0.20 (ppa:ubuntu-lxc/lxd-stable).

 I really appreciate any help!

 I'm seeing that both LXC itself, and LXD, supported nested containers but, how?

 I'm trying but, it doesn't work...

 Thanks in advance!

Best,
Thiago