mirror of
https://github.com/jbowdre/vsphere-k8s.git
synced 2024-11-22 16:02:19 +00:00
52 lines
1.4 KiB
Bash
52 lines
1.4 KiB
Bash
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#!/bin/bash -eu
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# Prepare a VM to become a template.
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echo '>> Clearing audit logs...'
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sudo sh -c 'if [ -f /var/log/audit/audit.log ]; then
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cat /dev/null > /var/log/audit/audit.log
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fi'
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sudo sh -c 'if [ -f /var/log/wtmp ]; then
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cat /dev/null > /var/log/wtmp
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fi'
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sudo sh -c 'if [ -f /var/log/lastlog ]; then
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cat /dev/null > /var/log/lastlog
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fi'
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sudo sh -c 'if [ -f /etc/logrotate.conf ]; then
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logrotate -f /etc/logrotate.conf 2>/dev/null
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fi'
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sudo rm -rf /var/log/journal/*
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sudo rm -f /var/lib/dhcp/*
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sudo find /var/log -type f -delete
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echo '>> Clearing persistent udev rules...'
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sudo sh -c 'if [ -f /etc/udev/rules.d/70-persistent-net.rules ]; then
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rm /etc/udev/rules.d/70-persistent-net.rules
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fi'
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# check for only RHEL releases
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if [[ $(awk -F= '/^ID=/{print $2}' /etc/os-release | grep rhel) ]]; then
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echo '>> Clearing RHSM subscription...'
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sudo subscription-manager unregister
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sudo subscription-manager clean
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fi
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echo '>> Clearing temp dirs...'
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sudo rm -rf /tmp/*
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sudo rm -rf /var/tmp/*
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echo '>> Clearing host keys...'
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sudo rm -f /etc/ssh/ssh_host_*
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echo '>> Clearing machine-id...'
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sudo truncate -s 0 /etc/machine-id
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if [ -f /var/lib/dbus/machine-id ]; then
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sudo rm -f /var/lib/dbus/machine-id
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sudo ln -s /etc/machine-id /var/lib/dbus/machine-id
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fi
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echo '>> Clearing shell history...'
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unset HISTFILE
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history -cw
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echo > ~/.bash_history
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sudo rm -f /root/.bash_history
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