_svc="apparmor"
_rlvl="boot"

post_install() {
        _cmd="rc-update add ${_svc} ${_rlvl}"
        echo "  ==> run '${_cmd}'"
}

post_remove() {
        _cmd="rc-update del ${_svc} ${_rlvl}"
        echo "  ==> run '${_cmd}'"
}