run

#!/bin/bash

# unclean container stop might leave pid files around and rsyslogd seems
# sometimes falsely think it's already running if some other process
# happens to have its old pid when starting.
rm -f \
  /run/opendkim/opendkim.pid \
  /run/rsyslogd.pid \
  /var/spool/postfix/pid/master.pid

# POSTFIX_var env -> postconf -e var=$POSTFIX_var
for e in ${!POSTFIX_*} ; do postconf -e "${e:8}=${!e}" ; done
chown -R postfix:postfix /var/lib/postfix /var/mail /var/spool/postfix

# DKIM config
if [ ! -z "$OPENDKIM_DOMAINS" ] ; then
  postconf -e milter_protocol=2
  postconf -e milter_default_action=accept
  postconf -e smtpd_milters=inet:localhost:12301

  rm -f /etc/opendkim/KeyTable
  rm -f /etc/opendkim/SigningTable

  for d in $OPENDKIM_DOMAINS ; do
    DIR="/etc/opendkim/keys/$d"
    if [ ! -d "$DIR" ] ; then
      mkdir -p "$DIR"
      (cd "$DIR" && opendkim-genkey --selector=mail --domain=$d && chown opendkim:opendkim mail.private)
    fi

    echo "mail._domainkey.$d $d:mail:/etc/opendkim/keys/$d/mail.private" >> /etc/opendkim/KeyTable
    echo "*@$d mail._domainkey.$d" >> /etc/opendkim/SigningTable
  done

  echo "DNS records:"
  for d in $OPENDKIM_DOMAINS ; do
    cat /etc/opendkim/keys/$d/mail.txt
  done
fi

trap "service postfix stop; service opendkim stop; pkill -TERM rsyslogd" SIGTERM SIGINT
if [ ! -z "$OPENDKIM_DOMAINS" ] ; then
  service opendkim start
fi
service postfix start
rsyslogd -n &
wait
exit 0