root@ena:~# cat /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  ethernets:
    ens33:
      link-local: [ipv4]
      dhcp4: false
      addresses:
      - 192.168.$X.247/24
      nameservers:
        addresses:
        - 192.168.$Y.$A
        - 192.168.$Y.$B
        search:
        - $SOMEDOMAIN
      routes:
      - to: default
        via: 192.168.$X.1
  version: 2

root@ena:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:3c:96:fc brd ff:ff:ff:ff:ff:ff
    altname enp2s1
    inet 169.254.159.116/16 metric 2048 brd 169.254.255.255 scope link ens33
       valid_lft forever preferred_lft forever
    inet 192.168.$X.247/24 brd 192.168.$X.255 scope global ens33
       valid_lft forever preferred_lft forever