ARG DISTRO=alpine:3.10 FROM $DISTRO # python3 shared with most images RUN apk add --no-cache \ python3 py3-pip git bash \ && pip3 install --upgrade pip # Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, rainloop, roundcube RUN pip3 install socrate # Image specific layers under this line RUN apk add --no-cache certbot nginx nginx-mod-mail openssl curl \ && pip3 install watchdog COPY conf /conf COPY static /static COPY *.py / EXPOSE 80/tcp 443/tcp 110/tcp 143/tcp 465/tcp 587/tcp 993/tcp 995/tcp 25/tcp 10025/tcp 10143/tcp VOLUME ["/certs"] VOLUME ["/overrides"] CMD /start.py HEALTHCHECK CMD curl -k -f -L http://localhost/health || exit 1