Comment 23 for bug 1006898

This is hitting a lot of openstack users who chose 12.04 due to the announcement of backporting openstack to precise for 3 years: https://wiki.ubuntu.com/ServerTeam/CloudArchive

We fall into that category. It's pretty much impossible to use stock versions of dnsmasq and openstack in 12.04. This adds a significant burden to our team. This is a pretty serious problem that needs to find its way into 12.04 (precise), sooner rather than later, especially since it affects the recommended openstack essex configuration (vlan). It's causing our Windows Server instances to fatally lose their IP address config. This essentially makes our cloud unpredictably unstable, with instances coming and going randomly. Yes, there are potential workarounds (at least for openstack), but they're ugly:

https://lists.launchpad.net/openstack/msg11696.html

nova.conf
# release leases immediately on terminate
force_dhcp_release=true
# one week lease time
dhcp_lease_time=604800
# two week disassociate timeout
fixed_ip_disassociate_timeout=1209600

Again, this needs to be fixed considering this is LTS, and considering that precise is supposed to be a solid foundation upon which to build an openstack cloud.