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Mailu/core/postfix/Dockerfile

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ARG DISTRO=alpine:3.14
FROM $DISTRO
# python3 shared with most images
RUN apk add --no-cache \
python3 py3-pip git bash py3-multidict py3-yarl \
&& pip3 install --upgrade pip
# Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, rainloop, roundcube
RUN pip3 install socrate==0.2.0
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# Shared layer between dovecot and postfix
RUN pip3 install "podop>0.2.5"
# Image specific layers under this line
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RUN apk add --no-cache postfix postfix-pcre cyrus-sasl-login
COPY conf /conf
COPY start.py /start.py
EXPOSE 25/tcp 10025/tcp
VOLUME ["/queue"]
CMD /start.py
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HEALTHCHECK --start-period=350s CMD echo QUIT|nc localhost 25|grep "220 .* ESMTP Postfix"