I think i solved the Static ip problem of a lxc container:
“/etc/netplan/50-cloud-init.yaml”
ethernets:
eth0:
dhcp4: no
dhcp6: no
addresses:
- 192.168.20.111/24
gateway4: 192.168.20.1
nameservers:
addresses:
- 192.168.20.1
- 8.8.8.8
and then:
netplan --debug apply
works like a charm (found here Lxd + Netplan + Static IP's in same subnet HOW-TO - #7 by sdurnov)