Linux/Proxmox

Install Ubuntu to be used for cloning with cloud-init

# in case of apt-cacher-ng
touch /etc/apt/apt.conf.d/00aptproxy
echo 'Acquire::http::Proxy "http://192.168.111.11:3142";' > /etc/apt/apt.conf.d/00aptproxy

apt update
apt install -y cloud-init cloud-initramfs-growroot qemu-guest-agent