post_install() {
	getent group jasper &>/dev/null || groupadd -r jasper >/dev/null
	getent passwd jasper &>/dev/null || useradd -r -g jasper -d /var/lib/jasper -s /bin/false -c jasper jasper >/dev/null
	chown -R jasper:jasper /var/lib/jasper
}

post_upgrade() {
	post_install
}

post_remove() {
	getent passwd jasper &>/dev/null && userdel jasper >/dev/null
	getent group jasper &>/dev/null && groupdel jasper >/dev/null
	true
}