Hosts file needed for instance migration
Received the following error when attempting a live-migration: /var/log/nova/nova-compute.log:2017-05-12 07:46:29.017 44465 ERROR nova.virt.libvirt.driver [req-39bda2e3-fb5d-4244-8a2c-253cc21cafec 1f100cc819fc479d9ed1ccf826e9f0ad c7e0cb0a22904f979eeb5d502796e038 - - -] [instance: 2cbff7c6-9ccf-4aaf-991f-3ec9092de749] Live Migration failure: operation failed: Failed to connect to remote libvirt URI qemu+tcp://compute012/system: Unable to resolve address 'compute012' service '16509': Name or service not known