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[Scott Moser <smoser@xxxxxxxxxx>]

** Changed in: cloud-init
       Status: Confirmed => Fix Committed

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

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

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

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

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

** Changed in: cloud-init (Ubuntu Xenial)
       Status: New => Confirmed

** Changed in: cloud-init (Ubuntu Yakkety)
       Status: New => Confirmed

** Changed in: cloud-init (Ubuntu Zesty)
       Status: New => Confirmed

** Changed in: cloud-init (Ubuntu Artful)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1692028

Title:
  duplicate mac address during config-drive configuration with LXD
  container on openstack

Status in cloud-init:
  Fix Committed
Status in cloud-init package in Ubuntu:
  Confirmed
Status in cloud-init source package in Xenial:
  Confirmed
Status in cloud-init source package in Yakkety:
  Confirmed
Status in cloud-init source package in Zesty:
  Confirmed
Status in cloud-init source package in Artful:
  Confirmed

Bug description:
  Whilst testing the changes for nova-lxd to resolve issues with use of
  config-drive, I tripped over this issue; specifically the networking
  on a config-drive configured LXD instance never starts due to a
  duplicate MAC address on the lo and greptap0 devices.

  Cloud-init v. 0.7.9 running 'init' at Fri, 19 May 2017 13:41:00 +0000. Up 2.0 seconds.
  ci-info: ++++++++++++++++++++++++++++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++++++++++++++++++++++++++++
  ci-info: +---------+-------+------------------------------+-----------+-------+-------------------------------------------------+
  ci-info: |  Device |   Up  |           Address            |    Mask   | Scope |                    Hw-Address                   |
  ci-info: +---------+-------+------------------------------+-----------+-------+-------------------------------------------------+
  ci-info: | gretap0 | False |              .               |     .     |   .   |                00:00:00:00:00:00                |
  ci-info: |   eth0  |  True |              .               |     .     |   .   |                fa:16:3e:1d:aa:ac                |
  ci-info: |   eth0  |  True | fe80::f816:3eff:fe1d:aaac/64 |     .     |  link |                fa:16:3e:1d:aa:ac                |
  ci-info: |    lo   |  True |          127.0.0.1           | 255.0.0.0 |   .   |                        .                        |
  ci-info: |    lo   |  True |           ::1/128            |     .     |  host |                        .                        |
  ci-info: |   gre0  | False |              .               |     .     |   .   | 00-00-00-00-31-36-3a-33-00-00-00-00-00-00-00-00 |
  ci-info: +---------+-------+------------------------------+-----------+-------+-------------------------------------------------+
  2017-05-19 13:41:01,017 - util.py[WARNING]: failed stage init
  failed run of stage init
  ------------------------------------------------------------
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 647, in status_wrapper
      ret = functor(name, args)
    File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 365, in main_init
      init.apply_network_config(bring_up=bool(mode != sources.DSMODE_LOCAL))
    File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 629, in apply_network_config
      netcfg, src = self._find_networking_config()
    File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 616, in _find_networking_config
      if self.datasource and hasattr(self.datasource, 'network_config'):
    File "/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceConfigDrive.py", line 150, in network_config
      self.network_json, known_macs=self.known_macs)
    File "/usr/lib/python3/dist-packages/cloudinit/sources/helpers/openstack.py", line 638, in convert_net_json
      known_macs = net.get_interfaces_by_mac()
    File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 403, in get_interfaces_by_mac
      (name, ret[mac], mac))
  RuntimeError: duplicate mac found! both 'gretap0' and 'lo' have mac '00:00:00:00:00:00'
  ------------------------------------------------------------
  Cloud-init v. 0.7.9 running 'modules:config' at Fri, 19 May 2017 13:41:02 +0000. Up 4.0 seconds.
  Cloud-init v. 0.7.9 running 'modules:final' at Fri, 19 May 2017 13:41:04 +0000. Up 6.0 seconds.
  Cloud-init v. 0.7.9 finished at Fri, 19 May 2017 13:41:04 +0000. Datasource DataSourceConfigDrive [net,ver=2][source=/config-drive].  Up 6.0 seconds

  Related bugs:
   * bug 1692545: guests have unexpected network devices gretap0 and gre0

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