Disable_cloudinit

How to disable cloud-init in Ubuntu
Prevent start
Create an empty file to prevent the service from starting

  sudo touch /etc/cloud/cloud-init.disabled
Uninstall
Disable all services (uncheck everything except "None"):

  dpkg-reconfigure cloud-init
Uninstall the package and delete the folders

  sudo dpkg-reconfigure cloud-init
  sudo apt-get purge cloud-init
  sudo rm -rf /etc/cloud/ && sudo rm -rf /var/lib/cloud/
Restart the computer

  sudo reboot
Sources
https://cloudinit.readthedocs.io/en/latest/topics/boot.html#generator
https://www.blackmoreops.com/2019/04/19/remove-cloud-init-from-ubuntu/