VictoriaMetrics/deployment/marketplace/digitialocean/one-click-droplet/scripts/90-cleanup.sh
Denys Holius d44cc14c6b
added packer build for DigitalOcean Droplets (#1917)
* added packer build for DigitalOcean Droplets

* fixed typo

* added packer RELEASE_GUIDE.md, Makefile

* Apply suggestions from code review

Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>

* added corrections amd improvements

* added packer link & templating for sed version

* fixed typo

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>
2021-12-21 12:09:14 +02:00

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#!/bin/bash
# Ensure /tmp exists and has the proper permissions before
# checking for security updates
# https://github.com/digitalocean/marketplace-partners/issues/94
if [[ ! -d /tmp ]]; then
mkdir /tmp
fi
chmod 1777 /tmp
apt-get -y update
apt-get -y upgrade
rm -rf /tmp/* /var/tmp/*
history -c
cat /dev/null > /root/.bash_history
unset HISTFILE
apt-get -y autoremove
apt-get -y autoclean
find /var/log -mtime -1 -type f -exec truncate -s 0 {} \;
rm -rf /var/log/*.gz /var/log/*.[0-9] /var/log/*-????????
rm -rf /var/lib/cloud/instances/*
rm -f /root/.ssh/authorized_keys /etc/ssh/*key*
touch /etc/ssh/revoked_keys
chmod 600 /etc/ssh/revoked_keys
# Securely erase the unused portion of the filesystem
GREEN='\033[0;32m'
NC='\033[0m'
printf "\n${GREEN}Writing zeros to the remaining disk space to securely
erase the unused portion of the file system.
Depending on your disk size this may take several minutes.
The secure erase will complete successfully when you see:${NC}
dd: writing to '/zerofile': No space left on device\n
Beginning secure erase now\n"
dd if=/dev/zero of=/zerofile &
PID=$!
while [ -d /proc/$PID ]
do
printf "."
sleep 5
done
sync; rm /zerofile; sync
cat /dev/null > /var/log/lastlog; cat /dev/null > /var/log/wtmp