Public bug reported: With the migration to netplan/systemd-networkd/systemd-resolved, autopkgtest VMs now end up with multiple default routes. This causes miscellaneous autopkgtest failures of packages that assume a single record will be returned when grepping route -n output for 0.0.0.0.
These autopkgtests can be made more robust (it's not correct to assume that there will only be one default route on a system); but it's also a bug that there are duplicate routes. This problem is reproducible in other artful VMs using netplan+networkd. E.g.: $ gcloud compute instances create artful-test --image-project ubuntu-os-cloud-devel --image daily-ubuntu-1710-artful-v20170921a Created [https://www.googleapis.com/compute/v1/projects/ubuntu-foundations/zones/us-west1-a/instances/artful-test]. NAME ZONE MACHINE_TYPE PREEMPTIBLE INTERNAL_IP EXTERNAL_IP STATUS artful-test us-west1-a n1-standard-1 10.138.0.2 104.198.107.129 RUNNING $ gcloud compute ssh artful-test Warning: Permanently added 'compute.2478931335975611629' (ECDSA) to the list of known hosts. Welcome to Ubuntu Artful Aardvark (development branch) (GNU/Linux 4.13.0-11-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage Get cloud support with Ubuntu Advantage Cloud Guest: http://www.ubuntu.com/business/services/cloud 0 packages can be updated. 0 updates are security updates. The programs included with the Ubuntu system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. vorlon@artful-test:~$ ip route show default via 10.138.0.1 dev ens4 proto dhcp src 10.138.0.2 metric 100 default via 10.138.0.1 dev ens4 proto dhcp metric 100 10.138.0.1 dev ens4 proto dhcp scope link src 10.138.0.2 metric 100 10.138.0.1 dev ens4 proto dhcp scope link metric 100 vorlon@artful-test:~$ ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718842 Title: autopkgtest environments end up with duplicate default routes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1718842/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
