User-defined IPv4 routing tables are not created when using DHCP and setting use-routes to false

[Lars Erik Pedersen]

Using netplan.io 0.97-0ubuntu1~18.04.1 with this configuration:

network:
    ethernets:
        eth0:
            dhcp4: true
            dhcp4-overrides:
                    use-routes: false
            routes:
                    - to: 0.0.0.0/0
                      via: 192.168.0.1
                      table: 1
                    - to: 192.168.0.1/24
                      via: 192.168.0.1
                      table: 1
            routing-policy:
                    - to: 0.0.0.0/0
                      from: 192.168.0.1/24
                      table: 1

        eth1:
            dhcp4: true
            dhcp4-overrides:
                    use-routes: false
            routes:
                    - to: 0.0.0.0/0
                      via: 192.168.30.1
                      table: 2
                    - to: 192.168.30.1/24
                      via: 192.168.30.1
                      table: 2
            routing-policy:
                    - to: 0.0.0.0/0
                      from: 192.168.30.1/24
                      table: 2
    version: 2

I understand from the documentation that netplan should discard the routes recived from DHCP, and add my defined routes. In my configuration I want to setup source routing, and I expect netplan to create table 1 and table 2 from this configuration.

But, with this config. None of the tables is actually created:
root@bunt:~# ip -4 rule list
0: from all lookup local
0: from 192.168.30.1/24 lookup 2
0: from 192.168.0.1/24 lookup 1
32766: from all lookup main
32767: from all lookup default

root@bunt:~# ip -4 route show table 1
root@bunt:~# ip -4 route show table 2

The rules are in place, but the routing tables are empty/non-existing.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.