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[James Falcon <1860164@xxxxxxxxxxxxxxxxxx>]

Tracked in Github Issues as https://github.com/canonical/cloud-
init/issues/3595

** Bug watch added: github.com/canonical/cloud-init/issues #3595
   https://github.com/canonical/cloud-init/issues/3595

** Changed in: cloud-init
       Status: Triaged => Expired

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https://bugs.launchpad.net/bugs/1860164

Title:
  cloud-init generates a traceback if a default route already exists
  during ephemeral network setup

Status in cloud-init:
  Expired

Bug description:
  If a route already exists when the ephemeral network exists cloud-init
  will generate the following traceback:

  2020-01-16 21:14:22,584 - util.py[DEBUG]: Getting data from <class 'cloudinit.sources.DataSourceOracle.DataSourceOracle'> failed
  Traceback (most recent call last):
    File "/usr/lib/python2.7/site-packages/cloudinit/sources/__init__.py", line 760, in find_source
      if s.update_metadata([EventType.BOOT_NEW_INSTANCE]):
    File "/usr/lib/python2.7/site-packages/cloudinit/sources/__init__.py", line 649, in update_metadata
      result = self.get_data()
    File "/usr/lib/python2.7/site-packages/cloudinit/sources/__init__.py", line 273, in get_data
      return_value = self._get_data()
    File "/usr/lib/python2.7/site-packages/cloudinit/sources/DataSourceOracle.py", line 195, in _get_data
      with dhcp.EphemeralDHCPv4(net.find_fallback_nic()):
    File "/usr/lib/python2.7/site-packages/cloudinit/net/dhcp.py", line 57, in __enter__
      return self.obtain_lease()
    File "/usr/lib/python2.7/site-packages/cloudinit/net/dhcp.py", line 109, in obtain_lease
      ephipv4.__enter__()
    File "/usr/lib/python2.7/site-packages/cloudinit/net/__init__.py", line 920, in __enter__
      self._bringup_static_routes()
    File "/usr/lib/python2.7/site-packages/cloudinit/net/__init__.py", line 974, in _bringup_static_routes
      ['dev', self.interface], capture=True)
    File "/usr/lib/python2.7/site-packages/cloudinit/util.py", line 2083, in subp
      cmd=args)
  ProcessExecutionError: Unexpected error while running command.

  This is a regression from 19.1 on SUSE where exiting routes were
  simply skipped.

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