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[Launchpad Bug Tracker <1515463@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package lxc - 1.0.8-0ubuntu0.3

---------------
lxc (1.0.8-0ubuntu0.3) trusty; urgency=medium

  * Cherry-pick from upstream:
    - Fix preserve_ns to work on < 3.8 kernels. (LP: #1516971)

lxc (1.0.8-0ubuntu0.2) trusty; urgency=medium

  * Cherry-pick from upstream:
    - Fix ubuntu-cloud template to detect compression algorithm instead
      of hardcoding xz. Also update list of supported releases and use trusty
      as the fallback release. (LP: #1515463)
  * Update lxc-tests description to make it clear that this package is
    meant to be used by developers and by automated testing.

lxc (1.0.8-0ubuntu0.1) trusty; urgency=medium

  * New upstream bugfix release. (MRE tracking bug: LP: #1514623)
    (LP: #1429140)
    - Changelog at: https://linuxcontainers.org/lxc/news/
  * Drop proxy detection from the autopkgtest exercise script.
  * Add patch:
    - 0001-Trusty-Swap-out-the-CVE-2015-1335-fix-with-the-trust.patch
      This is a patch by Serge Hallyn to cope with the trusty 3.13 kernel.
      It updates the upstream CVE fix to the version which trusty ended
      up with after the few round of fixes.

 -- Stéphane Graber <stgraber@xxxxxxxxxx>  Wed, 18 Nov 2015 13:42:07
-0500

** Changed in: lxc (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-1335

-- 
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https://bugs.launchpad.net/bugs/1515463

Title:
  Broken juju LXC deployments

Status in lxc package in Ubuntu:
  Fix Released
Status in lxc source package in Trusty:
  Fix Released
Status in lxc source package in Vivid:
  Fix Released
Status in lxc source package in Wily:
  Fix Released
Status in lxc source package in Xenial:
  Fix Released

Bug description:
  I've just tried using juju to deploy to a container with trusty-
  proposed repo enabled, and I get an error message about 'failed to
  retrieve the template to clone'.  The underlying error appears to be:

    tar --numeric-owner -xpJf /var/cache/lxc/cloud-trusty/ubuntu-14.04-server-cloudimg-amd64-root.tar.gz;
    xz: (stdin): File format not recognized; tar: Child returned status 1; tar:
    Error is not recoverable: exiting now;

  This seems to be fairly obvious, trying to use xz on a tar.gz file is
  never going to work.

  The change appears to be from
  https://github.com/lxc/lxc/commit/27c278a76931bfc4660caa85d1942ca91c86e0bf,
  it assumes everything passed into it will be a .tar.xz file.

  This appears to be a conflict between the template expecting a .tar.xz
  file, and juju providing it a .tar.gz file.  You can see what juju is
  providing from:

    $ ubuntu-cloudimg-query trusty released amd64 --format %{url}
    https://cloud-images.ubuntu.com/server/releases/trusty/release-20151105/ubuntu-14.04-server-cloudimg-amd64.tar.gz

  From the juju deployed host:
  $ apt-cache policy lxc-templates
  lxc-templates:
    Installed: 1.0.8-0ubuntu0.1
    Candidate: 1.0.8-0ubuntu0.1
    Version table:
   *** 1.0.8-0ubuntu0.1 0
          500 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages
          100 /var/lib/dpkg/status

  From the host running juju:
  $ apt-cache policy juju-core
  juju-core:
    Installed: 1.22.8-0ubuntu1~14.04.1
    Candidate: 1.25.0-0ubuntu1~14.04.1~juju1
    Version table:
       1.25.0-0ubuntu1~14.04.1~juju1 0
          500 http://ppa.launchpad.net/juju/proposed/ubuntu/ trusty/main amd64 Packages
   *** 1.22.8-0ubuntu1~14.04.1 0
          400 http://archive.ubuntu.com/ubuntu/ trusty-proposed/universe amd64 Packages
          100 /var/lib/dpkg/status

  All machine involved are running trusty:

  $ lsb_release -rd
  Description:    Ubuntu 14.04.3 LTS
  Release:        14.04

  Please let me know if you need any more information.

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