Comment 14 for bug 1633788

Thank you Andrew!

So to recap, the workaround for people who need this working now (confirmed) is:

$ sudo add-apt-repository ppa:juju/devel
$ sudo apt-get update && sudo apt-get upgrade
$ juju --version
2.1-beta4-xenial-amd64

$ cat ~/.local/share/juju/clouds.yaml
clouds:
    lxd:
      type: lxd
      endpoint: <lxd host IP address>

Then bootstrap as documented.