Comment 14 for bug 1733653

Verified xenial with juju using the maas provider.
Mass curtin preseed configured to install from proposed.
$ apt-cache policy cloud-init
cloud-init:
  Installed: 17.1-46-g7acc9e68-0ubuntu1~16.04.1
  Candidate: 17.1-46-g7acc9e68-0ubuntu1~16.04.1
  Version table:
 *** 17.1-46-g7acc9e68-0ubuntu1~16.04.1 500
        500 http://archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     17.1-27-geb292c18-0ubuntu1~16.04.1 500
        500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
     0.7.7~bzr1212-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages