undercloud won't come up: seed metadata server 404s

[jan grant]

With a fresh update and a new deployment across the board, the undercloud won't boot. It has a route to 169.254.169.254, back to the seed IP (192.0.2.1). The nova-api metadata service is responding to requests to it, but attempting to fetch

http://169.254.169.254/latest/meta-data

return an HTTP 404.

On the seed node, the nova-api.log is full of these:

2014-04-14 10:21:16.346 3939 ERROR nova.api.metadata.handler [-] Failed to get metadata for ip: 192.0.2.3

[Michael Kerrin (michael-kerrin-w)]

I c an confirm that this a change made after this commit to nova 7fa9b7e0cccdedb4a4fbd12ed3db1dab30cb3ddc causes the problem. The time line from when I see internal failures matches this also.

[Derek Higgins (derekh)]

Also to double confirm, a ci run with https://review.openstack.org/#/c/86643/1 reverted
https://review.openstack.org/#/c/87245/1

looks like its going to pass CI (the undercloud job has passed which was previously failing)
https://jenkins02.openstack.org/job/check-tripleo-undercloud-precise/898/

[Ben Nemec (bnemec)]

Dropping severity because a revert was merged to Nova that fixes this for the moment.

https://review.openstack.org/87305

[Robert Collins (lifeless)]

Revert merged -> bug fixed.