FROM ubuntu:14.04

ENV DEBIAN_FRONTEND noninteractive

RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty main' | tee /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty main' | tee -a /etc/apt/sources.list
RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-updates main' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates main' | tee -a /etc/apt/sources.list
RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty universe' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty universe' | tee -a /etc/apt/sources.list
RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-updates universe' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates universe' | tee -a /etc/apt/sources.list
RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-updates multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb http://security.ubuntu.com/ubuntu trusty-security main' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://security.ubuntu.com/ubuntu trusty-security main' | tee -a /etc/apt/sources.list
RUN echo 'deb http://security.ubuntu.com/ubuntu trusty-security universe' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://security.ubuntu.com/ubuntu trusty-security universe' | tee -a /etc/apt/sources.list
RUN echo 'deb http://security.ubuntu.com/ubuntu trusty-security multiverse' | tee -a /etc/apt/sources.list
RUN echo 'deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse' | tee -a /etc/apt/sources.list

RUN locale-gen en_GB en_GB.UTF-8 && dpkg-reconfigure locales

RUN apt-get update

RUN apt-get -y -q autoclean
RUN apt-get -y -q autoremove
RUN apt-get clean

# prerequisites
RUN apt-get update

# install self-signed ssl certs
RUN apt-get install -y --force-yes ssl-cert

# Install postfix as MTA
RUN apt-get install -y --force-yes postfix

# Install dovecot as IMAP server
RUN apt-get install -y --force-yes dovecot-imapd

# postfix configuration
RUN echo "mail.docker.container" > /etc/mailname
ADD ./postfix.main.cf /etc/postfix/main.cf
ADD ./postfix.master.cf.append /etc/postfix/master-additional.cf
RUN cat /etc/postfix/master-additional.cf >> /etc/postfix/master.cf

# configure settings script
VOLUME ["/mail_config"]
COPY process_settings /process_settings
RUN chmod 755 /process_settings

# add user vmail who own all mail folders
VOLUME ["/vmail"]
RUN groupadd -g 5000 vmail
RUN useradd -g vmail -u 5000 vmail -d /vmail -m

# dovecot configuration
ADD ./dovecot.mail /etc/dovecot/conf.d/10-mail.conf
ADD ./dovecot.ssl /etc/dovecot/conf.d/10-ssl.conf
ADD ./dovecot.auth /etc/dovecot/conf.d/10-auth.conf
ADD ./dovecot.master /etc/dovecot/conf.d/10-master.conf
ADD ./dovecot.lda /etc/dovecot/conf.d/15-lda.conf
ADD ./dovecot.imap /etc/dovecot/conf.d/20-imap.conf
# add verbose logging
#ADD ./internal/dovecot.logging /etc/dovecot/conf.d/10-logging.conf

# smtp port for incoming mail
EXPOSE 25 
# imap port
EXPOSE 143
# smtp port for outgoing
EXPOSE 587

# todo: enable port 587 for outgoing mail, separate ports 25 and 587
# http://www.synology-wiki.de/index.php/Zusaetzliche_Ports_fuer_Postfix

# start necessary services for operation (dovecot -F starts dovecot in the foreground to prevent container exit)
ENTRYPOINT /process_settings; service rsyslog start; service postfix start; dovecot -F