Comment 118 for bug 1770082

Clarifying what worked for me across all the servers where I need this config:

cat <<EOF | tee /etc/systemd/network/10-netplan-ceph.link
[Match]
OriginalName=eth1

[Link]
Name=ceph
WakeOnLan=off
EOF

# Manual: ensure /etc/netplan/NN-FOO.yaml refers to desired name, no set-name:
# network:
# ethernets:
# ...
# ceph:
# addresses:
# - 10.5.12.2/16
#

update-initramfs -u
reboot now