55 lines
1.2 KiB
Docker
55 lines
1.2 KiB
Docker
FROM debian:buster-slim
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ENV DEBIAN_FRONTEND=noninteractive
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# Install packages
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RUN \
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apt-get update \
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&& apt-get upgrade -y \
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&& apt-get install -y --no-install-recommends \
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dovecot-core \
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dovecot-imapd \
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dovecot-lmtpd \
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dovecot-pop3d \
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opendkim \
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opendkim-tools \
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openssl \
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postfix \
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procps \
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rsyslog \
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s6 \
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&& apt-get autoclean \
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&& apt-get autoremove
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# Setup folders and users
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RUN \
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groupadd -g 2222 vmail \
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&& mkdir -p -m 751 "/var/mail/" \
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&& mkdir -p -m 755 "/etc/mail/" \
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&& useradd -d "/var/mail" -M -s "/usr/sbin/nologin" -u 2222 -g 2222 vmail \
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&& usermod -aG vmail postfix \
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&& usermod -aG vmail dovecot \
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&& usermod -aG vmail opendkim\
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&& chown vmail:vmail "/var/mail"
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# Copy config files
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COPY rootfs/ /
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RUN \
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chmod +x "/etc/service/postfix/run" \
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&& chmod +x "/etc/service/dovecot/run" \
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&& chmod +x "/etc/service/opendkim/run" \
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&& chmod +x "/etc/service/rsyslog/run"
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# Prepare user
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RUN mkdir -p "/var/mail/${DOMAINNAME}" \
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&& mkdir -p "/var/mail/${DOMAINPART}/${USER%@*}" \
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&& chown vmail:vmail "/var/mail/${DOMAINNAME}" \
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&& chown vmail:vmail "/var/mail/${DOMAINPART}/${USER%@*}"
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# Expose ports
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EXPOSE 25 110 143 587 993 995
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# Run start script
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ENTRYPOINT /usr/bin/start.sh
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