Cheatsheet

Static IP

lxc stop acmeauth
lxc network attach lxd0 acmeauth eth0 eth0
lxc config device set acmeauth eth0 ipv4.address 10.27.27.20
lxc start acmeauth

mkdir -p /etc/systemd/system/systemd-networkd.service.d/
tee /etc/systemd/system/systemd-networkd.service.d/lxc.conf <<'EOF'
[Service]
BindReadOnlyPaths=/sys
EOF

tee /etc/systemd/network/eth0.network  <<'EOF'
[Match]
Name=eth0

[Network]
DHCP=ipv4
LinkLocalAddressing=no
IPv6AcceptRA=no
IPv6PrivacyExtensions=no

[DHCPv4]
UseDomains=true
UseMTU=true

[DHCP]
ClientIdentifier=mac
EOF