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[Dan Watkins <daniel.watkins@xxxxxxxxxxxxx>]

Public bug reported:

Currently focal images on Oracle are failing to get data from the Oracle
DS with this traceback:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 772, in find_source
    if s.update_metadata([EventType.BOOT_NEW_INSTANCE]):
  File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 661, in update_metadata
    result = self.get_data()
  File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 279, in get_data
    return_value = self._get_data()
  File "/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOracle.py", line 195, in _get_data
    with dhcp.EphemeralDHCPv4(net.find_fallback_nic()):
  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 109, in obtain_lease
    ephipv4.__enter__()
  File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1019, in __enter__
    self._bringup_static_routes()
  File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1071, in _bringup_static_routes
    util.subp(
  File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 2084, in subp
    raise ProcessExecutionError(stdout=out, stderr=err,
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


In https://github.com/canonical/cloud-init/blob/46cf23c28812d3e3ba0c570defd9a05628af5556/cloudinit/sources/DataSourceOracle.py#L194-L198, we can see that this path is only taken if _is_iscsi_root returns False.

** Affects: cloud-init
     Importance: Undecided
     Assignee: Dan Watkins (daniel-thewatkins)
         Status: In Progress

** Changed in: cloud-init
     Assignee: (unassigned) => Dan Watkins (daniel-thewatkins)

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https://bugs.launchpad.net/bugs/1872813

Title:
  cloud-init fails to detect iSCSI root on focal Oracle instances

Status in cloud-init:
  In Progress

Bug description:
  Currently focal images on Oracle are failing to get data from the
  Oracle DS with this traceback:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 772, in find_source
      if s.update_metadata([EventType.BOOT_NEW_INSTANCE]):
    File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 661, in update_metadata
      result = self.get_data()
    File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 279, in get_data
      return_value = self._get_data()
    File "/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOracle.py", line 195, in _get_data
      with dhcp.EphemeralDHCPv4(net.find_fallback_nic()):
    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 109, in obtain_lease
      ephipv4.__enter__()
    File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1019, in __enter__
      self._bringup_static_routes()
    File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1071, in _bringup_static_routes
      util.subp(
    File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 2084, in subp
      raise ProcessExecutionError(stdout=out, stderr=err,
  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

  
  In https://github.com/canonical/cloud-init/blob/46cf23c28812d3e3ba0c570defd9a05628af5556/cloudinit/sources/DataSourceOracle.py#L194-L198, we can see that this path is only taken if _is_iscsi_root returns False.

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