install.sh

#!/bin/bash

#judgement
if [[ -a /etc/supervisor/conf.d/supervisord.conf ]]; then
  exit 0
fi

#supervisor
cat > /etc/supervisor/conf.d/supervisord.conf <<EOF
[supervisord]
nodaemon=true

[program:postfix]
process_name = master
command = /etc/init.d/postfix start
startsecs = 0
autorestart = false

[program:rsyslog]
command=/usr/sbin/rsyslogd -n
EOF

# put the same FQDN in /data/hostname and in reverse DNS
# for the public IP address on which this server will be
# receiving smtp traffic.
cp /data/hostname /etc/mailname
/usr/sbin/postconf -e "myhostname=`cat /data/hostname`"

# put all relevant domains in /data/destinations.
/usr/sbin/postconf -e "virtual_alias_domains=`cat /data/destinations`"

# put your forwarding addresses in /data/forwards.
cp /data/forwards /etc/postfix/virtual
/usr/sbin/postconf -e "virtual_alias_maps = hash:/etc/postfix/virtual"

# accept mails from docker networked machines:
/usr/sbin/postconf -e "mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 172.17.42.0/24"

# configure virtual
postmap /etc/postfix/virtual