#!/bin/sh

set -eu

DEBIAN_FRONTEND=noninteractive apt-get -yq purge $(dpkg-query -W -f='${binary:Package}\n' 'linux-image-4*' 'linux-headers-4*' | grep -v $(uname -r))

DEBIAN_FRONTEND=noninteractive apt-get -yq clean

chsh --shell '/usr/sbin/nologin' packer