FROM ubuntu:14.10

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

# Prerequisites
RUN echo "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d && \
    apt-get update && apt-get install -y \
    opendkim && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# Nice place for your settings
VOLUME ["/mail_settings"]

# Configure boot script
COPY boot /
RUN chmod 755 /boot

ENV OPEN_DKIM=true

EXPOSE 8891

ENTRYPOINT /boot; service rsyslog start; opendkim -f -p inet:8891@0.0.0.0