26 lines
740 B
Docker
26 lines
740 B
Docker
# syntax=docker.io/docker/dockerfile:1.5.2
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FROM ubuntu:20.04
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# install apt packages
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ENV TZ Europe/Berlin
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RUN <<EOF
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apt-get update
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apt-get install -y postfix bind9-dnsutils
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apt-get install -y rsyslog
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# cleanup
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apt-get autoclean
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rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* ~/.cache ~/.npm
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EOF
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COPY etc-template /root/etc
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# https://github.com/moby/moby/issues/31243#issuecomment-406879017
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RUN <<EOF
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sed -i '/imklog/s/^/#/' /etc/rsyslog.conf
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sed -i 's|-/var/log/syslog|/dev/stdout|' /etc/rsyslog.d/50-default.conf
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usermod -G tty syslog
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# chown -R postfix /var/spool/postfix
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EOF
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COPY --chmod=0775 postfix/entrypoint.sh /entrypoint.sh
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EXPOSE 25
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EXPOSE 10026
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VOLUME /var/spool/postfix
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ENTRYPOINT ["/entrypoint.sh"]
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CMD ["postfix", "start-fg"] |