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[Bug 1124441] Re: config drive not created when booting from volume

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 20 Mar 2013 16:05:37 -0000
Reply-to: Bug 1124441 <1124441@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1124441

Title:
  config drive not created when booting from volume

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  When booting from volume with a config drive, libvirt fails to
  instantiate because the disk.config is never created in the instance
  directory.  This was recently broken.

  This could be related to bug 984996 (instance directory not created)
  but I'm not sure

  I boot a VM from volume using this:

  nova boot --config-drive=true --block-device-mapping vda=<VOLUME ID
  HERE>:::0 --flavor=1 --nic net-id=38278b90-9f80-44ec-b2a5-dac6a7066a5e
  autoBFV

  This will generate the following error:

  2013-02-13 14:29:20.831 DEBUG nova.utils [req-ab6b48d5-c2e6-43c4-970c-f65b16acfda5 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] Result was 0 execute /usr/lib/python2.7/dist-packages/nova/utils.py:231
  2013-02-13 14:29:20.833 DEBUG nova.utils [req-ab6b48d5-c2e6-43c4-970c-f65b16acfda5 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] Running cmd (subprocess): sudo nova-rootwrap /etc/nova/rootwrap.conf iptables-restore -c execute /usr/lib/python2.7/dist-packages/nova/utils.py:207
  2013-02-13 14:29:20.909 DEBUG nova.utils [req-ab6b48d5-c2e6-43c4-970c-f65b16acfda5 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] Result was 0 execute /usr/lib/python2.7/dist-packages/nova/utils.py:231
  2013-02-13 14:29:20.910 DEBUG nova.network.linux_net [req-ab6b48d5-c2e6-43c4-970c-f65b16acfda5 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] IPTablesManager.apply completed with success _apply /usr/lib/python2.7/dist-packages/nova/network/linux_net.py:391
  2013-02-13 14:29:20.911 DEBUG nova.openstack.common.lockutils [req-ab6b48d5-c2e6-43c4-970c-f65b16acfda5 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] Released file lock "iptables" at /var/lock/nova/nova-iptables for method "_apply"... inner /usr/lib/python2.7/dist-packages/nova/openstack/common/lockutils.py:235
  2013-02-13 14:29:22.607 ERROR nova.compute.manager [req-ab6b48d5-c2e6-43c4-970c-f65b16acfda5 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6] Instance failed to spawn
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6] Traceback (most recent call last):
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 985, in _spawn
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     block_device_info)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 1205, in spawn
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     block_device_info)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2087, in _create_domain_and_network
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     domain = self._create_domain(xml, instance=instance)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2048, in _create_domain
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     domain.createWithFlags(launch_flags)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 187, in doit
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     result = proxy_call(self._autowrap, f, *args, **kwargs)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 147, in proxy_call
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     rv = execute(f,*args,**kwargs)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 76, in tworker
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     rv = meth(*args,**kwargs)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 650, in createWithFlags
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6]     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
  2013-02-13 14:29:22.607 3204 TRACE nova.compute.manager [instance: ab87f0d0-15bf-4c23-b504-227ba274b5e6] libvirtError: Unable to allow access for disk path /var/lib/nova/instances/instance-0000002d/disk.config: No such file or directory

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