Hi all,

We have a gate bug [1] where if a CI VM does not have an IPv4 default route configured, the job will fail with one of the following errors:

"[ERROR] /opt/stack/devstack/functions-common:230 Failure retrieving default route device" [2]

or

"[ERROR] /opt/stack/devstack/functions-common:104 Failure retrieving default IPv4 route devices" [3]

because the die_if_not_set is being triggered.

Most of the time, CI VMs come configured with an IPv4 default route but something changed recently (around Oct 23 or 24) to where we often get VMs that do not have an IPv4 default route configured and presumably only have an IPv6 default route.

According to this logstash query [4] we have:

58 hits in the last 7 days, check and gate, all failures, all on the limestone-regionone node provider, various projects, various jobs

Nate Johnson has proposed a fix here:

https://review.opendev.org/761178

Reviews appreciated.

Cheers, -melanie

[1] https://bugs.launchpad.net/devstack/+bug/1902002 [2] example: https://zuul.openstack.org/build/7543021732cc4886b608553da58e81f9/log/contro... [3] example: https://zuul.opendev.org/t/openstack/build/7fff839dd0bc4214ba6470ef40cf78fd/... [4] http://logstash.openstack.org/#/dashboard/file/logstash.json?query=message:%...