Add support for a LXD backend to Libertine

[Christopher Townsend]

Need to investigate the feasibility of using an LXD backend in Libertine.

1. Need to see if it's possible to have all of the bind-mounts we need.
2. LXD seems to have much better reporting of various statuses [0]
3. LXD uses a basic REST API for interacting with the LXD daemon [0]
4. ???

[0] https://www.stgraber.org/2016/04/18/lxd-api-direct-interaction/

[Christopher Townsend (townsend)]

After quite a bit of investigation, I found that there is already a python3-pylxd API in development by the maintainers of LXD. Instead of rolling our own API and duplicate work, we should use that instead.

However, one of the most important pieces is missing form pylxd- the actual executing of commands inside the LXD container. There is a very minimal exec function, but offers no process control nor any access to stdin, stdout, and stderr. There is a comment in that part of the pylxd code that says it needs to be expanded in the future.

I think we should wait on pylxd to mature some more before moving forward with this.

[Libertine CI Bot (libertine-ci-bot)]

Fix committed into lp:libertine at revision None, scheduled for release in libertine, milestone Unknown

[Launchpad Janitor (janitor)]

This bug was fixed in the package libertine - 1.5+17.04.20170105.1-0ubuntu1

---------------
libertine (1.5+17.04.20170105.1-0ubuntu1) zesty; urgency=medium

  [ Chris Townsend ]
  * Drop support for the Puritine click package as that is Vivid only
    and a Vivid Libertine branch exists for any future fixes.
  * Only set the lxc log when a container is defined during class init.
    (LP: #1653973)
  * Bump version to 1.5 for new upstream release.

  [ Larry Price ]
  * Logic for bundling libertine as a snap built from source.
  * Catch exceptions raised during container creation.
  * Initial implementation of lxd backend. (LP: #1580612)
  * Use the libertine logger and LIBERTINE_DEBUG variable everywhere.
  * Update configure bind-mount logic given new lxd backend.
  * Use dpkg to find package name when installing local deb.
  * Create d-bus service for lxd container management.

 -- Christopher Townsend <email address hidden> Thu, 05 Jan 2017 20:20:33 +0000