Hi all, There probably aren't a lot of people in this situation nowadays, but for those that are, I wanted to report a successful nova-network to Neutron migration.
We used NeCTAR's migration scripts which can be found here: https://github.com/NeCTAR-RC/novanet2neutron These scripts allowed us to do an in-place upgrade with almost no downtime. There was probably an hour or two of network downtime, but all instances stayed up and running. There were also a handful of instances that needed a hard reboot and some that had to give up their Floating IP to Neutron. All acceptable, IMO. We modified them to suit our environment, specifically by adding support for IPv6 and Floating IPs. In addition, we leaned on our existing Puppet environment to deploy certain Nova and Neutron settings in phases. But we wouldn't have been able to do this migration without these scripts, so to Sam and the rest of the NeCTAR crew: thank you all very much! Joe
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