ubuntu_minify.sh

#!/bin/bash -ex

### More info: https://coderwall.com/p/a56j3w/memory-efficient-ubuntu-vms

### configuration

PKGS_TO_ADD="$PKGS_TO_ADD curl git etckeeper python-software-properties"
PKGS_TO_REMOVE="$PKGS_TO_REMOVE geoip-database popularity-contest"
PKGS_TO_REMOVE="$PKGS_TO_REMOVE pppoeconf pppconfig ppp"
PKGS_TO_REMOVE="$PKGS_TO_REMOVE ubuntu-standard memtest86+" # warning: be careful about what you remove after this
KERNEL_MODULES_TO_BLACKLIST="$KERNEL_MODULES_TO_BLACKLIST joydev gameport"
KERNEL_MODULES_TO_BLACKLIST="$KERNEL_MODULES_TO_BLACKLIST btusb bluetooth"
KERNEL_MODULES_TO_BLACKLIST="$KERNEL_MODULES_TO_BLACKLIST shpchp"
MINIFY_SETUP_ETCKEEPER='sed -i '\''s/^#\(VCS="git"\)/&/;s/^VCS="bzr"/#&/'\'' /etc/etckeeper/etckeeper.conf && etckeeper init && etckeeper commit "initial"'

### configuration

# rerun as sudo
if [ $UID != 0 ]; then
  sudo sh -c "exec $0 \"$@\""
fi

if [ -n "$PKGS_TO_ADD" ]; then
  echo Installing $PKGS_TO_ADD
  apt-get install -y $PKGS_TO_ADD
fi

if [ -n "$PKGS_TO_REMOVE" ]; then
  echo Removing $PKGS_TO_REMOVE
  dpkg -P $PKGS_TO_REMOVE >/dev/null 2>&1
fi

if [ -n "$KERNEL_MODULES_TO_BLACKLIST" ]; then
  BLACKLIST=/etc/modprobe.d/blacklist-minify.conf

  echo "# Automatically generated by ubuntu_minify.sh" > $BLACKLIST
  for MODULE in $KERNEL_MODULES_TO_BLACKLIST; do
    echo Blacklisted kernel module $MODULE
    echo blacklist $MODULE >> $BLACKLIST
  done
fi

for SETUP in `env | grep '^MINIFY_SETUP_'`; do
  $SETUP
done

apt-get autoremove -y

echo 'Type "reboot" to complete the process'