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[James Falcon <1842752@xxxxxxxxxxxxxxxxxx>]

Tracked in Github Issues as https://github.com/canonical/cloud-
init/issues/3441

** Bug watch added: github.com/canonical/cloud-init/issues #3441
   https://github.com/canonical/cloud-init/issues/3441

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

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https://bugs.launchpad.net/bugs/1842752

Title:
  Additional traceback in logs when using DataSourceOpenStackLocal on
  Oracle

Status in cloud-init:
  Expired

Bug description:
  With the introduction of DHCP classless static route parsing in our
  ephemeral DHCP code, we've started seeing an additional traceback on
  Oracle during DataSourceOpenStackLocal:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 760, in find_source
      if s.update_metadata([EventType.BOOT_NEW_INSTANCE]):
    File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 649, in update_metadata
      result = self.get_data()
    File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 273, in get_data
      return_value = self._get_data()
    File "/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOpenStack.py", line 130, in _get_data
      with EphemeralDHCPv4(self.fallback_interface):
    File "/usr/lib/python3/dist-packages/cloudinit/net/dhcp.py", line 57, in __enter__
      return self.obtain_lease()
    File "/usr/lib/python3/dist-packages/cloudinit/net/dhcp.py", line 106, in obtain_lease
      ephipv4.__enter__()
    File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 773, in __enter__
      self._bringup_static_routes()
    File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 827, in _bringup_static_routes
      ['dev', self.interface], capture=True)
    File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 2069, in subp
      cmd=args)
  cloudinit.util.ProcessExecutionError: Unexpected error while running command.
  Command: ['ip', '-4', 'route', 'add', '0.0.0.0/0', 'via', '10.0.0.1', 'dev', 'ens3']
  Exit code: 2
  Reason: -
  Stdout: 
  Stderr: RTNETLINK answers: File exists

  This happens because the routes that are being applied have already
  been applied during iSCSI root configuration in the initramfs.  There
  is no functional regression as a result; DataSourceOpenstack runs
  during the network phase and performs instance configuration as
  expected.

  (This is Low priority because it has limited impact, and we will soon
  be transitioning to use DataSourceOracle in Ubuntu, which does not
  exhibit this issue.)

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