mailcow dockerized

data/Dockerfiles/postfix/Dockerfile

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+From ubuntu:xenial
+MAINTAINER Andre Peters <andre.peters@servercow.de>
+
+# Set noninteractive mode for apt-get
+ENV DEBIAN_FRONTEND noninteractive
+
+# Update
+RUN apt-get update
+
+# Start editing
+# Install package here for cache
+RUN apt-get -y install supervisor \
+	postfix \
+	sasl2-bin \
+	postfix \
+	postfix-mysql \
+	postfix-pcre \
+	rsyslog \
+	ca-certificates
+
+COPY supervisord.conf /etc/supervisor/supervisord.conf
+COPY postfix.sh /opt/postfix.sh
+
+RUN groupadd -g 5000 vmail
+RUN useradd -g vmail -u 5000 vmail -d /var/vmail
+
+EXPOSE 588
+
+# Run
+CMD /usr/bin/supervisord -c /etc/supervisor/supervisord.conf

data/Dockerfiles/postfix/postfix.sh

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+#!/bin/bash
+
+# http://superuser.com/questions/168412/using-supervisord-to-control-the-postfix-mta
+
+trap "postfix stop" SIGINT
+trap "postfix stop" SIGTERM
+trap "postfix reload" SIGHUP
+
+# start postfix
+postfix -c /opt/postfix/conf start
+
+# lets give postfix some time to start
+sleep 3
+
+# wait until postfix is dead (triggered by trap)
+while kill -0 $(cat /var/spool/postfix/pid/master.pid); do
+  sleep 5
+done

data/Dockerfiles/postfix/supervisord.conf

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+[supervisord]
+nodaemon=true
+
+[program:rsyslog]
+command=/usr/sbin/rsyslogd -n
+autostart=true
+autorestart=true
+redirect_stderr=true
+
+[program:postfix]
+command=/opt/postfix.sh
+autorestart=true
+
+[program:postfix-maillog]
+command=/usr/bin/tail -f /var/log/mail.log
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0