[Bug 1426324] Re: VFS blkid calls need to handle 0 or 2 return codes

[Alan Pevec]

** Changed in: nova/kilo
       Status: New => Fix Committed

** Changed in: nova/kilo
    Milestone: None => 2015.1.1

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Title:
  VFS blkid calls need to handle 0 or 2 return codes

Status in ubuntu-cloud-archive:
  Fix Released
Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) kilo series:
  Fix Committed
Status in nova package in Ubuntu:
  Fix Released

Bug description:
  kilo-2 introduce blkid calls for fs detection on all new instances; if
  the specified key is not found on the block device, blkid will return
  2 instead of 0 - nova needs to deal with this:

  2015-02-27 10:48:51.270 3062 INFO nova.virt.disk.vfs.api [-] Unable to import guestfs, falling back to VFSLocalFS
  2015-02-27 10:48:51.476 3062 ERROR nova.compute.manager [-] [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] Instance failed to spawn
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] Traceback (most recent call last):
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2328, in _build_resources
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     yield resources
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2198, in _build_and_run_instance
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     flavor=flavor)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2329, in spawn
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     admin_pass=admin_password)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2728, in _create_image
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     project_id=instance['project_id'])
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/imagebackend.py", line 230, in cache
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     *args, **kwargs)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/imagebackend.py", line 507, in create_image
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     copy_qcow2_image(base, self.path, size)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 431, in inner
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     return f(*args, **kwargs)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/imagebackend.py", line 473, in copy_qcow2_image
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     disk.extend(target, size, use_cow=True)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/disk/api.py", line 183, in extend
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     if not is_image_extendable(image, use_cow):
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/disk/api.py", line 235, in is_image_extendable
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     if fs.get_image_fs() in SUPPORTED_FS_TO_EXTEND:
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/virt/disk/vfs/localfs.py", line 167, in get_image_fs
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     run_as_root=True)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/nova/utils.py", line 190, in execute
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     return processutils.execute(*cmd, **kwargs)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]   File "/usr/lib/python2.7/dist-packages/oslo_concurrency/processutils.py", line 228, in execute
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]     cmd=sanitized_cmd)
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] ProcessExecutionError: Unexpected error while running command.
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] Command: sudo nova-rootwrap /etc/nova/rootwrap.conf blkid -o value -s TYPE /dev/nbd2
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] Exit code: 2
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] Stdout: u''
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b] Stderr: u''
  2015-02-27 10:48:51.476 3062 TRACE nova.compute.manager [instance: 1aa12a52-c91b-49b4-9636-63c39f7ba72b]

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: python-nova 1:2015.1~b2-0ubuntu5~cloud0 [modified: usr/lib/python2.7/dist-packages/nova/virt/disk/vfs/localfs.py] [origin: Canonical]
  ProcVersionSignature: User Name 3.16.0-31.41~14.04.1-generic 3.16.7-ckt5
  Uname: Linux 3.16.0-31-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CrashDB:
   {
                  "impl": "launchpad",
                  "project": "cloud-archive",
                  "bug_pattern_url": "http://people.canonical.com/~ubuntu-archive/bugpatterns/bugpatterns.xml",
               }
  Date: Fri Feb 27 11:13:43 2015
  NovaConf: Error: [Errno 13] Permission denied: '/etc/nova/nova.conf'
  PackageArchitecture: all
  SourcePackage: nova
  UpgradeStatus: No upgrade log present (probably fresh install)

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