https://bugs.launchpad.net/nova/+bug/1959899 The test times out verifying the tags in the metadata API after attaching a NIC and volume. This is happening almost 100% of the time, but I've seen at least a couple of passing runs as well. We have yet to determine what the exact failure mode is - is the metadata API timing out (unlikely, since every other test passes)? Or are the expected tags just not present (more likely)? I'm trying to figure some things out at [1], but other than that this is very much under investigation with no root cause identified yet. [1] https://review.opendev.org/c/openstack/nova/+/827549