FROM alpine:3.8 # python3 shared with most images RUN apk add --no-cache \ python3 py3-pip git \ && pip3 install --upgrade pip # Shared layer between rspamd, postfix, dovecot, unbound and nginx RUN pip3 install jinja2 \ && pip3 install git+https://github.com/usrpro/MailuStart.git#egg=mailustart # Shared layer between rspamd, postfix, dovecot RUN pip3 install tenacity # Image specific layers under this line RUN apk add --no-cache \ dovecot dovecot-pigeonhole-plugin rspamd-client bash \ && pip3 install podop \ && mkdir /var/lib/dovecot COPY conf /conf COPY start.py /start.py EXPOSE 110/tcp 143/tcp 993/tcp 4190/tcp 2525/tcp VOLUME ["/data", "/mail"] CMD /start.py HEALTHCHECK --start-period=350s CMD echo QUIT|nc localhost 110|grep "Dovecot ready."