18 lines
498 B
Docker
18 lines
498 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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# 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/postfix/ /etc/postfix/
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RUN cp /etc/resolv.conf /var/spool/postfix/etc/resolv.conf
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COPY --chmod=0775 entrypoint.sh /entrypoint.sh
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EXPOSE 25
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VOLUME /var/spool/postfix
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ENTRYPOINT ["/entrypoint.sh"]
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CMD ["postfix", "start-fg"] |