openstack-nova-compute doen't restart if packstack is installed with ironic support

[Yoann Colin]

I install packstack with the ironic support in seperate compute configuration through :
packstack \
      --install-hosts=$HOSTS \
      --novanetwork-pubif=eno1 \
      --novacompute-privif=eno2 \
      --os-neutron-lbaas-install=y \
      --os-neutron-ovs-tunnel-if=eno2 \
      --cinder-volumes-size=120G \
      --os-swift-install=y \
      --os-heat-install=y \
      --os-heat-cfn-install=y \
      --os-heat-cloudwatch-install=y \
      --os-trove-install=y \
      --os-ironic-install=y \
      --provision-demo=n \
      --use-epel=y

On my compute nodes, openstack-nova-compute fail to restart with this message :
openstack-nova-compute.service start request repeated too quickly, refusing to start.

In /var/log/nova/nova-compute.log :

2015-03-10 15:23:45.257 26835 CRITICAL nova [-] ImportError: No module named ironic.nova.compute.manager
2015-03-10 15:23:45.257 26835 TRACE nova Traceback (most recent call last):
2015-03-10 15:23:45.257 26835 TRACE nova File "/usr/bin/nova-compute", line 10, in <module>
2015-03-10 15:23:45.257 26835 TRACE nova sys.exit(main())
2015-03-10 15:23:45.257 26835 TRACE nova File "/usr/lib/python2.7/site-packages/nova/cmd/compute.py", line 72, in main
2015-03-10 15:23:45.257 26835 TRACE nova db_allowed=CONF.conductor.use_local)
2015-03-10 15:23:45.257 26835 TRACE nova File "/usr/lib/python2.7/site-packages/nova/service.py", line 275, in create
2015-03-10 15:23:45.257 26835 TRACE nova db_allowed=db_allowed)
2015-03-10 15:23:45.257 26835 TRACE nova File "/usr/lib/python2.7/site-packages/nova/service.py", line 147, in __init__
2015-03-10 15:23:45.257 26835 TRACE nova manager_class = importutils.import_class(self.manager_class_name)
2015-03-10 15:23:45.257 26835 TRACE nova File "/usr/lib/python2.7/site-packages/nova/openstack/common/importutils.py", line 27, in import_class
2015-03-10 15:23:45.257 26835 TRACE nova __import__(mod_str)
2015-03-10 15:23:45.257 26835 TRACE nova ImportError: No module named ironic.nova.compute.manager
2015-03-10 15:23:45.257 26835 TRACE nova

Install openstack-ironic-common jump to another missing dependency trouble :

2015-03-10 15:34:21.034 27578 INFO nova.virt.driver [-] Loading compute driver 'nova.virt.ironic.IronicDriver'
2015-03-10 15:34:21.036 27578 ERROR nova.virt.driver [-] Unable to load the virtualization driver
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver Traceback (most recent call last):
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver File "/usr/lib/python2.7/site-packages/nova/virt/driver.py", line 1402, in load_compute_driver
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver virtapi)
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver File "/usr/lib/python2.7/site-packages/nova/openstack/common/importutils.py", line 52, in import_object_ns
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver return import_class(import_str)(*args, **kwargs)
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver File "/usr/lib/python2.7/site-packages/nova/virt/ironic/driver.py", line 163, in __init__
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver ironic = importutils.import_module('ironicclient')
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver File "/usr/lib/python2.7/site-packages/nova/openstack/common/importutils.py", line 57, in import_module
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver __import__(import_str)
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver ImportError: No module named ironicclient
2015-03-10 15:34:21.036 27578 TRACE nova.virt.driver

Install python-ironicclient solve the trouble and permit to openstack-nova-compute to restart properly.

[Lukas Bezdicka (social-b)]

Hi, temporary workaround would be installing openstack-ironic-common and python-ironicclient on nova compute.