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[Alan Pevec <1247526@xxxxxxxxxxxxxxxxxx>]

** Changed in: nova/havana
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1247526

Title:
  libvirt evacuate(shared storage) fails w/ Permission denied on
  disk.config

Status in OpenStack Compute (Nova):
  Fix Released
Status in OpenStack Compute (nova) grizzly series:
  In Progress
Status in OpenStack Compute (nova) havana series:
  Fix Released

Bug description:
  when doing a evacuate for an instance on shared storage, the following
  error occurs

  2013-10-25 01:20:49.843 INFO nova.compute.manager [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] disk on shared storage, recreating using existing disk
  2013-10-25 01:20:53.325 INFO nova.virt.libvirt.driver [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] [instance: dc2c583c-7488-4a32-81f1-2282097eb358] Creating image
  2013-10-25 01:20:53.413 INFO nova.virt.libvirt.driver [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] [instance: dc2c583c-7488-4a32-81f1-2282097eb358] Using config drive
  2013-10-25 01:20:57.812 INFO nova.virt.libvirt.driver [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] [instance: dc2c583c-7488-4a32-81f1-2282097eb358] Creating config drive at /var/lib/nova/instances/dc2c583c-7488-4a32-81f1-2282097eb358/disk.config
  2013-10-25 01:20:57.835 ERROR nova.virt.libvirt.driver [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] [instance: dc2c583c-7488-4a32-81f1-2282097eb358] Creating config drive failed with error: Unexpected error while running command.
  Command: genisoimage -o /var/lib/nova/instances/dc2c583c-7488-4a32-81f1-2282097eb358/disk.config -ldots -allow-lowercase -allow-multidot -l -publisher OpenStack Nova 2013.1.3 -quiet -J -r -V config-2 /tmp/cd_gen_I3EQUN
  Exit code: 13
  Stdout: ''
  Stderr: "Warning: creating filesystem that does not conform to ISO-9660.\ngenisoimage: Permission denied. Unable to open disc image file '/var/lib/nova/instances/dc2c583c-7488-4a32-81f1-2282097eb358/disk.config'.\n"
  2013-10-25 01:20:57.837 ERROR nova.compute.manager [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] [instance: dc2c583c-7488-4a32-81f1-2282097eb358] Unexpected error while running command.
  Command: genisoimage -o /var/lib/nova/instances/dc2c583c-7488-4a32-81f1-2282097eb358/disk.config -ldots -allow-lowercase -allow-multidot -l -publisher OpenStack Nova 2013.1.3 -quiet -J -r -V config-2 /tmp/cd_gen_I3EQUN
  Exit code: 13
  Stdout: ''
  Stderr: "Warning: creating filesystem that does not conform to ISO-9660.\ngenisoimage: Permission denied. Unable to open disc image file '/var/lib/nova/instances/dc2c583c-7488-4a32-81f1-2282097eb358/disk.config'.\n". Setting instance vm_state to ERROR
  2013-10-25 01:20:58.693 ERROR nova.openstack.common.rpc.amqp [req-3ecfa138-b688-447c-b352-18cca32b1a1d 8394996e48204a8d878bac7bf6a88db0 d05694d82d984dd495d25bfdf08ba049] Exception during message handling

  
  the nova version it 2013.1 but after looking the code, it should also affect the latest trunk

  Allowing the nova user to read/write disk.config should fix this
  issue....

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