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[Lucian Petrut <lpetrut@xxxxxxxxxxxxxxxxxxxxxx>]

Public bug reported:

During cold migration, vhd config drive images are not copied over, on
the wrong assumption that the instance is already configured and does
not need the config drive.

There is an explicit check at the following location:
https://github.com/openstack/nova/blob/8f35bb321d26bd7d296c57f4188ec12fcde897c3/nova/virt/hyperv/migrationops.py#L75-L76

For this reason, migrating instances using vhd config drivers will fail, as there is a check ensuring that the config drive is present, if required:
https://github.com/openstack/nova/blob/8f35bb321d26bd7d296c57f4188ec12fcde897c3/nova/virt/hyperv/migrationops.py#L153-L163

The Hyper-V driver should not skip moving the config drive image.

** Affects: compute-hyperv
     Importance: Undecided
         Status: New

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: drivers hyper-v

** Project changed: os-win => nova

** Also affects: compute-hyperv
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1619602

Title:
  Hyper-V: vhd config drive images are not migrated

Status in compute-hyperv:
  New
Status in OpenStack Compute (nova):
  New

Bug description:
  During cold migration, vhd config drive images are not copied over, on
  the wrong assumption that the instance is already configured and does
  not need the config drive.

  There is an explicit check at the following location:
  https://github.com/openstack/nova/blob/8f35bb321d26bd7d296c57f4188ec12fcde897c3/nova/virt/hyperv/migrationops.py#L75-L76

  For this reason, migrating instances using vhd config drivers will fail, as there is a check ensuring that the config drive is present, if required:
  https://github.com/openstack/nova/blob/8f35bb321d26bd7d296c57f4188ec12fcde897c3/nova/virt/hyperv/migrationops.py#L153-L163

  The Hyper-V driver should not skip moving the config drive image.

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