A default 22.10 installation configures netplan with gateway4 which is reported as deprecated

[Frank Heimes]

I just noticed that a standard 22.10 installation produces a netplan yaml like this:

$ cat /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  ethernets:
    enc600:
      addresses:
      - 10.123.123.123/24
      gateway4: 10.123.123.1
      nameservers:
        addresses:
        - 10.123.123.1
  version: 2

But netplan already reports the usage of 'gateway4' as deprecated:

$ sudo netplan apply --dry-run

** (generate:35929): WARNING **: 07:51:52.369: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.662: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.677: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.797: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

** (process:35927): WARNING **: 07:51:52.797: `gateway4` has been deprecated, use default routes instead.
See the 'Default routes' section of the documentation for more details.

[Frank Heimes (fheimes)]

Looks like this is the same on a 22.04.1 installation.

[Dan Bungert (dbungert)]

I thought we fixed this, I wonder if this missed being merged properly.

[XSpielinbox (xspielinbox)]

I can reproduce the issue with Ubuntu Server 22.04.1 LTS Installer when not updating the installer (Subiquity Version 22.07.2).
When Updating the Installer to Subiquity Version 22.10.1 or using the Ubuntu Server 22.10 Installer (it does not prompt for a installer update wherefore I assume it also uses Subiquity Version 22.10.1) it always generates the "routes:" and not a "gateway4/6" anymore. This therefore seems fixed to me.
However it is very unfortunate that one has to manually update the installer to receive this fix.

[Frank Heimes (fheimes)]

Looks like this is still the case with subiquity 22.12.1 (build 4222, currently in beta channel).

[Frank Heimes (fheimes)]

This still happens with 23.04: LP#2022030