The Canonical-developed Netplan has served for Linux network configuration on Ubuntu Server and Cloud versions for years. With the recent Ubuntu 23.10 release, Netplan is now being used by default on the desktop. Canonical is committing to fully leveraging Netplan for network configuration with the upcoming Ubuntu 24.04 LTS release and in turn also marking the Netplan 1.0 release.
Netplan is Canonical’s network configuration manager for Linux systems with network interfaces being described via YAML files. Netplan considers itself as a “network configuration abstraction renderer” that in turn interfaces with NetworkManager or systemd-networkd. Netplan finally made its way to the Ubuntu 23.10 desktop by default with having better integration for knowing when connections are created/modified through NetworkManager.
For Ubuntu 24.04 LTS, Canonical plans to polish the Netplan codebase and deliver a Netplan 1.0 release with API/ABI stability. They are also hoping other Linux distributions begin adopting Netplan. Debian so far has decided to go with Netplan for their nework stack on Debian Cloud images.
It’s not really worth it, honestly. All netplan does is generate a config for systemd-networkd. It’s better to just configure systemd-networkd directly and have a portable configuration, rather than use Canonical’s proprietary stuff. The documentation is quite good for systemd in general, and with more people using it directly for network config it’s easier to find examples when you need help.