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andrewfraley/ubuntu_template_cleanup.sh

Last active January 17, 2022 23:52
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Used to do final cleanup on a Ubuntu 20.04 image template
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ubuntu_template_cleanup.sh
# Apply updates and clear apt cache
echo "Applying updates and clearing apt cache"
apt update && apt -y upgrade && apt -y autoremove && apt clean
# Clear this to regen this file (you can't delete it). Otherwise DHCP will give the same IP to every system built with this
echo "Clearing /etc/machine-id"
truncate -s0 /etc/machine-id
echo "Running cloud-init clean"
cloud-init clean
echo "Shutting down!"
shutdown -h "now"
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