#!/bin/sh
set -e

NAME="SMTP"

function stop {
	echo "Stopping ${NAME}"
	kill $(cat /run/saslauthd/saslauthd.pid)
	kill $(cat /run/sendmail/mta/sendmail.pid|head -1)
}

trap 'stop' SIGTERM

if [ -z "$@" ]; then
	if [ -z `hostname -d` ]; then
		echo "You must start this container with --hostname= specifying a domain name"
		exit 1
	fi

	touch /etc/postfix/custom/relay_host
	touch /etc/postfix/custom/sasl_passwd
	postmap -o lmdb:/etc/postfix/custom/sasl_passwd
	touch /etc/postfix/custom/transport
	postmap -o lmdb:/etc/postfix/custom/transport
	/usr/sbin/saslauthd -m /run/saslauthd -ca shadow
	newaliases
	postfix start
	/usr/sbin/opendkim -P /run/opendkim.pid -u opendkim -f

	wait
else
	exec $@
fi