77 lines
1.9 KiB
Bash
77 lines
1.9 KiB
Bash
#!/bin/bash
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#
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# Sysprep OS for vmware template creation.
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#
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# Shamelessly taken from https://oitibs.com/linux-vm-template-creation/
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echo "Removing openssh-server's host keys..."
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rm -vf /etc/ssh/ssh_host_*
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cat /dev/null > /etc/rc.local
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chmod +x /etc/rc.local
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cat << 'EOL' | sudo tee /etc/rc.local
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#!/bin/sh -e
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#
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# rc.local
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#
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# This script is executed at the end of each multiuser runlevel.
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# Make sure that the script will "" on success or any other
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# value on error.
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#
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# In order to enable or disable this script just change the execution
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# bits.
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#
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# By default this script does nothing.
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# dynamically create hostname (optional)
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if hostname | grep localhost; then
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hostnamectl set-hostname "$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 13 ; echo '')"
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fi
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test -f /etc/ssh/ssh_host_dsa_key || dpkg-reconfigure openssh-server
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if [ ! -f /etc/machine-id ]
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then
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/usr/bin/systemd-machine-id-setup
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fi
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exit 0
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EOL
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echo "Cleaning up /var/mail..."
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rm -vf /var/mail/*
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echo "Clean up apt cache..."
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find /var/cache/apt/archives -type f -exec rm -vf \{\} \;
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echo "Clean up ntp..."
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rm -vf /var/lib/ntp/ntp.drift
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rm -vf /var/lib/ntp/ntp.conf.dhcp
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echo "Clean up dhcp leases..."
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rm -vf /var/lib/dhcp/*.leases*
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rm -vf /var/lib/dhcp3/*.leases*
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echo "Clean up udev rules..."
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rm -vf /etc/udev/rules.d/70-persistent-cd.rules
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rm -vf /etc/udev/rules.d/70-persistent-net.rules
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echo "Clean up urandom seed..."
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rm -vf /var/lib/urandom/random-seed
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echo "Clean up backups..."
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rm -vrf /var/backups/*;
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rm -vf /etc/shadow- /etc/passwd- /etc/group- /etc/gshadow- /etc/subgid- /etc/subuid-
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echo "Cleaning up /var/log..."
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find /var/log -type f -name "*.gz" -exec rm -vf \{\} \;
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find /var/log -type f -name "*.1" -exec rm -vf \{\} \;
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find /var/log -type f -exec truncate -s0 \{\} \;
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echo "Compacting drive..."
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dd if=/dev/zero of=EMPTY bs=1M > /dev/null
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rm -vf /root/EMPTY
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fstrim -av
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echo "Clearing bash history..."
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cat /dev/null > /root/.bash_history
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history -c
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echo "Process complete..."
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poweroff |