/etc/hosts information about cloud hsots lost on reboot

[Michael Kerrin]

Some services use this information as they are configured to talk to the server name e.g. overcloud-controller2-bs3ewjxohoxb

For example I see the following issue in the nova-scheduler log.

2014-07-23 17:33:13.603 3522 INFO oslo.messaging._drivers.impl_rabbit [req-f71ef2e5-8510-4aca-8aef-7a0f5938306c ] Reconnecting to AMQP server on overcloud-controller2-bs3ewjxohoxb:5672
2014-07-23 17:33:13.604 3522 INFO oslo.messaging._drivers.impl_rabbit [req-f71ef2e5-8510-4aca-8aef-7a0f5938306c ] Delaying reconnect for 1.0 seconds...
2014-07-23 17:33:14.640 3522 ERROR oslo.messaging._drivers.impl_rabbit [req-f71ef2e5-8510-4aca-8aef-7a0f5938306c ] AMQP server on overcloud-controller2-bs3ewjxohoxb:5672 is unreachable: [E\
rrno -2] Name or service not known. Trying again in 5 seconds.
2014-07-23 17:33:19.645 3522 INFO oslo.messaging._drivers.impl_rabbit [req-f71ef2e5-8510-4aca-8aef-7a0f5938306c ] Reconnecting to AMQP server on overcloud-controller0-jg4n4563nrsa:5672
2014-07-23 17:33:19.646 3522 INFO oslo.messaging._drivers.impl_rabbit [req-f71ef2e5-8510-4aca-8aef-7a0f5938306c ] Delaying reconnect for 1.0 seconds...
2014-07-23 17:33:20.660 3522 INFO oslo.messaging._drivers.impl_rabbit [req-f71ef2e5-8510-4aca-8aef-7a0f5938306c ] Connected to AMQP server on overcloud-controller0-jg4n4563nrsa:5672

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/109072

[OpenStack Infra (hudson-openstack)]

Change abandoned by Michael Kerrin (<email address hidden>) on branch: master
Review: https://review.openstack.org/109072
Reason: https://review.openstack.org/#/c/102198/15