nova compute doesn't work

[Steven Dake]

/sys:/sys needs a host bindmount:

2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] Traceback (most recent call last):
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2132, in _build_resources
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] yield resources
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2002, in _build_and_run_instance
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] block_device_info=block_device_info)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 2455, in spawn
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] block_device_info=block_device_info)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4529, in _create_domain_and_network
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] xml, pause=pause, power_on=power_on)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4459, in _create_domain
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] guest.launch(pause=pause)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 141, in launch
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] self._encoded_xml, errors='ignore')
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 195, in __exit__
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] six.reraise(self.type_, self.value, self.tb)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 136, in launch
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] return self._domain.createWithFlags(flags)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 183, in doit
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] result = proxy_call(self._autowrap, f, *args, **kwargs)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 141, in proxy_call
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] rv = execute(f, *args, **kwargs)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 122, in execute
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] six.reraise(c, e, tb)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 80, in tworker
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] rv = meth(*args, **kwargs)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] File "/usr/lib64/python2.7/site-packages/libvirt.py", line 996, in createWithFlags
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde] libvirtError: Unable to read from '/sys/fs/cgroup/cpuset/system.slice/docker-3dfde50ad0353202f3340a387a762b17efbdac14918d3a720e3df1af98c8d04d.scope/cpuset.cpus': No such file or directory
2015-08-30 18:54:16.984 1 ERROR nova.compute.manager [instance: e33c7ff8-c823-420b-b9fe-36ade0f1efde]

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/218683

[Steven Dake (sdake)]

To reproduce:
run init-runonce
run neutron net-list
run nova boot cirros --image cirros --flavor m1.small --nic net-id=f2430fd9-d519-4dff-a071-6e31f9d38dbd

where f243... is equivalent to the demo-net's net id.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/218683
Committed: https://git.openstack.org/cgit/stackforge/kolla/commit/?id=e2d35ad054be6cfa395b04616c543e48d98e7e57
Submitter: Jenkins
Branch: master

commit e2d35ad054be6cfa395b04616c543e48d98e7e57
Author: Steven Dake <email address hidden>
Date: Sun Aug 30 12:46:30 2015 -0700

    nova-libvirt requires a /sys/fs/cgroup bindmount

    Nova-compute is curerntly generating a backtrace when trying to nova
    boot a VM. The backtrace is described in the bug log. Bind-mounting
    /sys/fs/cgroup:/sys/fs/cgroup in the libvirt container resolves the
    problem.

    Change-Id: I5a56b61fd260728fb76e19bcbdf403b80a4ec5a6
    Closes-Bug: #1490326