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[Launchpad Bug Tracker <2065451@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/2065451

Title:
  Updated image property did not synced to instance

Status in OpenStack Compute (nova):
  Expired

Bug description:
  We created an instance and then rebooted it, but the instance xml is
  changed after we reboot it, the following lines were added to the xml:

      <input type='keyboard' bus='usb'>
        <alias name='input1'/>
        <address type='usb' bus='0' port='2'/>
      </input>

  We read the nova code, find that the input device info was refreshed
  into nova db using the following line:
  nova.virt.libvirt.driver.LibvirtDriver.spawn#self._register_undefined_instance_details(context,
  instance),

  but when the instance is booting,
  nova.virt.libvirt.driver.LibvirtDriver.spawn#xml =
  self._get_guest_xml(context, instance, network_info, disk_info,
  image_meta, block_device_info=block_device_info, mdevs=mdevs,
  accel_info=accel_info). This line records the xml without the usb
  keyboard setting. When the instance is hard rebooted, nova will use
  the setting set by the previous line and regenerate the xml, this may
  be the trick.

  Thank you for looking into it.

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