Comment 4 for bug 1706593

The fix for 1 (loopback device) and 2 (path for netctl config) are in
  https://code.launchpad.net/~smoser/cloud-init/+git/cloud-init/+merge/328114

You're right about 3. I'm not sure when that got fixed, looking at logs I dont see it quickly. But I dont think it is a problem now, and the test I've added verifies a simple nameserver field gets populated.

Please go ahead and comment in the merge proposal and I can pull that.
Thanks.
Scott