Run it as root, then capture the image from the powered-off VM. When you deploy from this image, pass cloud-init user-data:
On Linux, there is no sysprep command. There is no single magic incantation. And that leads to a dangerous misconception: "Linux doesn't need sysprep. Just clone the disk." linux sysprep
echo "=== Sysprep complete. Shutting down for imaging. ===" shutdown -h now Run it as root, then capture the image
