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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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| # 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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