Comment 11 for bug 1942930

I Tested netplan.io 0.103-0ubuntu5~20.04.2 inside a fresh Focal LXD container:
$ lxc launch ubuntu-daily:focal ff
$ lxc exec ff bash

=> Enabled focal-proposed & installed/upgraded netplan.io

root@ff:~# dpkg -l | grep netplan
ii libnetplan0:amd64 0.103-0ubuntu5~20.04.2
ii netplan.io 0.103-0ubuntu5~20.04.2
root@ff:~# rm /etc/netplan/*
root@ff:~# cat /etc/netplan/00-ethernets.yaml
network:
  version: 2
  ethernets:
    all-en:
      dhcp4: true
      match:
        name: en*
    all-eth:
      dhcp4: true
      match:
        name: eth*
root@ff:~# netplan get
network:
  ethernets:
    all-en:
      dhcp4: true
      match:
        name: en*
    all-eth:
      dhcp4: true
      match:
        name: eth*
  version: 2
root@ff:~# netplan set network.ethernets=null
root@ff:~# netplan get
{}

In accordance with https://wiki.ubuntu.com/NetplanUpdates I'm also attaching the full autopkgtest logs for those builds:
https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_amd64.log
https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_arm64.log
https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_armhf.log
https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_ppc64el.log
https://git.launchpad.net/~slyon/+git/files/tree/LP1943120/focal_s390x.log