Installing the Vagrant libvirt Provider on Ubuntu 22.04 LTS

Vagrant ships with VirtualBox as its default provider, but on Linux KVM/libvirt is the better fit: it’s the kernel’s native hypervisor, it’s faster, and it doesn’t require an out-of-tree kernel module. The bridge between the two is vagrant-libvirt, a Vagrant plugin that drives libvirt instead of VirtualBox.

This post walks through the full setup on Ubuntu 22.04 LTS (Desktop or Server). It is largely a distillation of Paul Neumann’s gist, which itself builds on Philippe Vanhaesendonck’s Oracle Linux write-up — kept here for my own reference and slightly reorganized.