Comment 15 for bug 1737630

Note that when this was discovered many times over, we have cargo culted shipping things like:

0 ./live-build/ubuntu-cpc/includes.chroot/etc/systemd/system/network-online.target.wants/systemd-networkd-wait-online.service
0 ./live-build/ubuntu-cpc/includes.chroot/etc/systemd/system/multi-user.target.wants/systemd-networkd.service
0 ./live-build/ubuntu-cpc/includes.chroot/etc/systemd/system/sockets.target.wants/systemd-networkd.socket

In the cloud images, then in the ubuntu-server live images, and probably many other places too.

I'm not sure if it's cloud-init generator that should be poking netplan to "activate backend" or if netplan generator should "notice" that "we are cloud-initing, generate backend dependencies only" or some such.