Comment 2 for bug 1749717

Hi,
I modified the subject of this bug.

Openstack provides network configuration data in its metadata service
  http://169.254.169.254/openstack/latest/network_data.json

currently, cloud-init reads that data, but does not use it in the
openstack metadata datasource.

We would like to make cloud-init able to read this data and apply
the configuration at first boot. There is a fairly straight forward
path to doing this, but it just is not done yet.

At this point, then the options you have to make it "just work" is
to use the config drive datasource in openstack. That provides the
same network_data.json but is read earlier in cloud-init so that
it affects the network configuration of the system.