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ARG DISTRO=alpine:3.14.5
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FROM $DISTRO
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ARG VERSION
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ENV TZ Etc/UTC
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LABEL version=$VERSION
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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 tzdata \
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&& pip3 install --upgrade pip
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# Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, snappymail, 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 apk add --no-cache --virtual .build-deps gcc musl-dev python3-dev \
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&& pip3 install "podop>0.2.5" \
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&& apk del .build-deps
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# Image specific layers under this line
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# Building pycares from source requires py3-wheel and libffi-dev packages
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RUN pip install --no-cache-dir --extra-index-url=https://www.piwheels.org/simple --only-binary=:all: postfix-mta-sts-resolver==1.0.1 || (apk add --no-cache --virtual .build-deps gcc musl-dev python3-dev py3-wheel libffi-dev \
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&& pip3 install postfix-mta-sts-resolver==1.0.1 \
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&& apk del .build-deps )
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RUN apk add --no-cache postfix postfix-pcre cyrus-sasl-login rsyslog logrotate
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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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RUN echo $VERSION >> /version
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