Use exherbo as base image

Dockerfile

@@ -0,0 +1,108 @@
+FROM        hasufell/exherbo
+MAINTAINER  Julian Ospald "hasufell@posteo.de"
+
+
+# copy paludis config
+COPY ./config/paludis /etc/paludis
+
+
+##### PACKAGE INSTALLATION #####
+
+# update world with our options
+RUN chgrp paludisbuild /dev/tty && \
+	eclectic env update && \
+	source /etc/profile && \
+	cave sync && \
+	cave resolve -z -1 repository/net -x && \
+	cave resolve -z -1 repository/hasufell -x && \
+	cave resolve -z -1 repository/python -x && \
+	cave resolve -z -1 repository/perl -x && \
+	cave resolve -z -1 repository/nicoo -x && \
+	cave update-world -s mail && \
+	cave resolve -ks -Sa -sa -B world -x -f --permit-old-version '*/*' && \
+	cave resolve -ks -Sa -sa -B world -x --permit-old-version '*/*' && \
+	cave purge -x && \
+	cave fix-linkage -x && \
+	rm -rf /usr/portage/distfiles/*
+
+RUN eclectic config accept-all
+
+################################
+
+
+##### APPLICATION CONFIG #####
+
+# create dovecot certificates
+RUN mkdir -p /var/tmp/dovecot-cert
+RUN cp /usr/share/doc/dovecot-*/mkcert.sh /var/tmp/dovecot-cert/ ; \
+	cp /usr/share/doc/dovecot-*/dovecot-openssl.cnf /var/tmp/dovecot-cert/
+RUN chmod +x /var/tmp/dovecot-cert/mkcert.sh
+WORKDIR /var/tmp/dovecot-cert
+RUN mkdir /etc/ssl/private
+RUN ./mkcert.sh
+RUN chown root:dovecot /etc/ssl/certs/dovecot.pem ; \
+	chmod 0644 /etc/ssl/certs/dovecot.pem ; \
+	chown root:dovecot /etc/ssl/private/dovecot.pem ; \
+	chmod 0600 /etc/ssl/private/dovecot.pem
+WORKDIR /
+RUN rm -r /var/tmp/dovecot-cert
+
+# create postfix certificates
+RUN openssl req -new -x509 -nodes -out /etc/ssl/certs/postfix.pem -keyout \
+	/etc/ssl/private/postfix.key -days 3650 -subj '/CN=www.example.com'
+
+# Postfix configuration
+ADD ./config/postfix/postfix.main.cf /etc/postfix/main.cf
+ADD ./config/postfix/postfix.master.cf.append /etc/postfix/master-additional.cf
+RUN cat /etc/postfix/master-additional.cf >> /etc/postfix/master.cf
+RUN sed -r -i -e \
+	'/^smtp[[:space:]]+inet[[:space:]]+/a\ -o content_filter=spamassassin' \
+	/etc/postfix/master.cf
+RUN newaliases -oA/etc/mail/aliases
+
+# Dovecot configuration
+COPY ./config/dovecot/dovecot.mail /etc/dovecot/conf.d/10-mail.conf
+COPY ./config/dovecot/dovecot.ssl /etc/dovecot/conf.d/10-ssl.conf
+COPY ./config/dovecot/dovecot.auth /etc/dovecot/conf.d/10-auth.conf
+COPY ./config/dovecot/dovecot.master /etc/dovecot/conf.d/10-master.conf
+
+COPY ./config/dovecot/dovecot.lda /etc/dovecot/conf.d/15-lda.conf
+COPY ./config/dovecot/dovecot.imap /etc/dovecot/conf.d/20-imap.conf
+COPY ./config/dovecot/dovecot.sieve /etc/dovecot/conf.d/90-sieve.conf
+COPY ./config/dovecot/dovecot.managesieve \
+	/etc/dovecot/conf.d/20-managesieve.conf
+# Uncomment to add verbose logging
+COPY ./config/dovecot/dovecot.logging /etc/dovecot/conf.d/10-logging.conf
+
+# spamassasin configuration
+COPY ./config/spamassasin/spamassasin.local.append \
+	/etc/spamassassin/local.cf.append
+RUN mkdir /etc/spamassassin/.pyzor /etc/spamassassin/.razor
+COPY ./config/spamassasin/pyzor.servers /etc/spamassassin/.pyzor/servers
+RUN cat /etc/spamassassin/local.cf.append >> /etc/spamassassin/local.cf
+
+# supervisord configuration
+COPY ./config/supervisord.conf /etc/supervisord.conf
+
+##############################
+
+
+# Nice place for your settings
+VOLUME ["/mail_settings"]
+
+# Copy boot scripts
+COPY boot /
+RUN chmod 755 /boot
+COPY boot.d /boot.d
+RUN chmod -R 755 /boot.d
+
+# Add user vmail that owns mail
+RUN groupadd -g 5000 vmail
+RUN useradd -g vmail -u 5000 vmail -d /vmail -m
+
+# Volume to store email
+VOLUME ["/vmail"]
+
+EXPOSE 25 465 993 4190
+
+CMD /boot && exec /usr/bin/supervisord -n -c /etc/supervisord.conf