Scripts to cleanup a Debian template

call_script.sh

curl -L https://cleanup.aph.im | sh -s
history -c
history -w
sudo poweroff

first_run.sh

#!/bin/sh

# run after creating a clone

this_file=${0##*/}

id

if [ `id -u` -ne 0 ]; then
	echo Need sudo
	exit 1
fi

# Change the VM name
echo -n "Set the name of this VM: "
read vm_name_input

new_vm_name=$(echo $vm_name_input | tr '[:upper:]' '[:lower:]' | tr -d [:space:])

current_vm_name=$(cat /etc/hostname)
hostnamectl set-hostname $new_vm_name
hostname $new_vm_name

sudo sed -i "s/$current_vm_name/$new_vm_name/g" /etc/hosts
sudo sed -i "s/$current_vm_name/$new_vm_name/g" /etc/hostname


# set time zone
timedatectl set-timezone America/Chicago

#update apt-cache
apt update

# update OS
apt -y full-upgrade

# regenerate ssh host keys
test -f /etc/ssh/ssh_host_rsa_key || dpkg-reconfigure openssh-server

dbus-uuidgen --ensure=/etc/machine-id
dbus-uuidgen --ensure


rm $this_file

echo "\nPlease reboot this VM now.\n"

template_cleanup.sh

#!/bin/bash

# prep ubuntu for cloning

this_file=${0##*/}
this_user=$SUDO_USER

id

if [ `id -u` -ne 0 ]; then
	echo Need sudo
	exit 1
fi

cd ~

wget https://gist.githubusercontent.com/apharp/d07f64f8df03b22ed2d4f8332aa49f6a/raw/first_run.sh
chmod +x first_run.sh

#update apt-cache
apt update

#install packages
#apt install -y qemu-guest-agent chrony

#flush the logs
logrotate -f /etc/logrotate.conf

#Stop services for cleanup
service rsyslog stop

#clear audit logs
if [ -f /var/log/audit/audit.log ]; then
    cat /dev/null > /var/log/audit/audit.log
fi
if [ -f /var/log/wtmp ]; then
    cat /dev/null > /var/log/wtmp
fi
if [ -f /var/log/lastlog ]; then
    cat /dev/null > /var/log/lastlog
fi

if [ -f /etc/machine-id ]; then
    cat /dev/null > /etc/machine-id
fi

if [ -f /var/lib/dbus/machine-id ]; then
    cat /dev/null > /var/lib/dbus/machine-id
fi

#cleanup persistent udev rules
if [ -f /etc/udev/rules.d/70-persistent-net.rules ]; then
    rm /etc/udev/rules.d/70-persistent-net.rules
fi

#cleanup /tmp directories
rm -rf /tmp/*
rm -rf /var/tmp/*

#cleanup current ssh keys
rm -f /etc/ssh/ssh_host_*

#cleanup apt
apt clean
apt autoremove

#rm ~/$this_file