Comment 6 for bug 1879933

It took about 12 deploys - I did nothing but release/deploy (focal) - and I managed to get one that had a functional network:

ubuntu@node-gengar:~$ ip route get 8.8.8.8
8.8.8.8 via 10.245.168.1 dev enP5p9s0f1 src 10.245.168.27 uid 1000
    cache

ubuntu@node-gengar:~$ ip route
default via 10.245.168.1 dev enP5p9s0f1 proto static
10.245.168.0/21 dev enP5p9s0f1 proto kernel scope link src 10.245.168.27
ubuntu@node-gengar:~$ ip route list table 1
Error: ipv4: FIB table does not exist.
Dump terminated
ubuntu@node-gengar:~$ ip rule list
0: from all lookup local
32766: from all lookup main
32767: from all lookup default

/etc/netplan/50-cloud-init.yaml
https://pastebin.ubuntu.com/p/qxFJCSkyfn/

/etc/cloud/cloud.cfg.d/50-curtin-networking.cfg
https://pastebin.ubuntu.com/p/zdDwgVbSJd/

cloud-init
https://pastebin.ubuntu.com/p/pySk8r6Cp3/

I'm going to leave this one up and a broken one in case anyone wants any other logs etc.