apt update && apt full-upgrade -y
apt install -y vim curl wget git htop net-tools qemu-guest-agent
systemctl enable qemu-guest-agent
timedatectl set-timezone UTC
apt install -y unattended-upgrades
dpkg-reconfigure -plow unattended-upgrades

# Anonymize the VM or Sysprep Windows: C:\Windows\System32\Sysprep\sysprep.exe /oobe /generalize /shutdown

truncate -s 0 /etc/machine-id
rm -f /var/lib/dbus/machine-id
# rm -f /etc/ssh/ssh_host_*
hostnamectl set-hostname localhost
rm -f /etc/udev/rules.d/70-persistent-net.rules
history -c
cat /dev/null > ~/.bash_history
find /var/log -type f -exec truncate -s 0 {} \;
rm -rf /tmp/* /var/tmp/*
rm -f /var/lib/dhcp/*.leases
apt clean
shutdown -h now

# # Via command line clone VM or below (VM # in Proxmox)
qm template 100