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[Scott Moser <smoser@xxxxxxxxxx>]

** Also affects: cloud-init (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: juju-core (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1621180

Title:
  specifying apt_mirror of '' renders empty entries in
  /etc/apt/sources.list for uri

Status in cloud-init:
  Fix Released
Status in cloud-init package in Ubuntu:
  Fix Released
Status in juju-core package in Ubuntu:
  New
Status in cloud-init source package in Xenial:
  New
Status in juju-core source package in Xenial:
  New

Bug description:
  $ cat /tmp/foo.ud 
  #cloud-config
  apt_mirror: ''

  $ lxc launch ubuntu-daily:yakkety sm-y0 "--config=user.user-data=$(cat
  /tmp/foo.ud)"

  
  $ sleep 10

  
  $ lxc exec sm-y0 grep yakkety /etc/apt/sources.list | head -n 3 
  deb  yakkety main restricted
  deb-src  yakkety main restricted
  deb  yakkety-updates main restricted

  
  basically if you provide an empty apt_mirror in the old format, then it is taken as providing an apt mirror.  This non-true value should just be the same as not providing it.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: cloud-init 0.7.7-22-g763f403-0ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-9136.55-generic 4.4.16
  Uname: Linux 4.4.0-9136-generic x86_64
  ApportVersion: 2.20.3-0ubuntu7
  Architecture: amd64
  Date: Wed Sep  7 17:12:11 2016
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
  SourcePackage: cloud-init
  UpgradeStatus: No upgrade log present (probably fresh install)

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