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ARG DISTRO=alpine:3.12
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FROM $DISTRO
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# python3 shared with most images
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RUN apk add --no-cache \
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python3 py3-pip git bash py3-multidict py3-yarl \
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&& pip3 install --upgrade pip
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# Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, rainloop, roundcube
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RUN pip3 install socrate==0.2.0
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# Shared layer between dovecot and postfix
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RUN pip3 install "podop>0.2.5"
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# Image specific layers under this line
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RUN apk add --no-cache postfix postfix-pcre cyrus-sasl-plain
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COPY conf /conf
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COPY start.py /start.py
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EXPOSE 25/tcp 10025/tcp
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VOLUME ["/queue"]
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CMD /start.py
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HEALTHCHECK --start-period=350s CMD echo QUIT|nc localhost 25|grep "220 .* ESMTP Postfix"
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