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https://blitiri.com.ar/repos/chasquid
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68ba0d2600
This patch halves the Docker image layers by following the best practice of grouping some of the related commands together. https://github.com/albertito/chasquid/pull/68 Amended-by: Alberto Bertogli <albertito@blitiri.com.ar> Adjusted commit message, adjust comment location.
80 lines
2.6 KiB
Docker
80 lines
2.6 KiB
Docker
# Docker file for creating a container that will run chasquid and Dovecot.
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#
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# THIS IS EXPERIMENTAL AND LIKELY TO CHANGE.
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#
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# This is not recommended for serious installations, you're probably better
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# off following the documentation and setting the server up manually.
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#
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# See the README.md file for more details.
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# Build the binaries.
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FROM golang:latest AS build
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WORKDIR /go/src/blitiri.com.ar/go/chasquid
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COPY . .
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RUN go get -d ./... && \
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go install ./...
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# Create the image.
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FROM debian:stable
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# Make debconf/frontend non-interactive, to avoid distracting output about the
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# lack of $TERM.
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ENV DEBIAN_FRONTEND=noninteractive
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# Install the packages we need.
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# This includes chasquid, which sets up good defaults.
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RUN apt-get update -q && \
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apt-get install -y -q \
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chasquid \
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dovecot-lmtpd dovecot-imapd dovecot-pop3d \
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dovecot-sieve dovecot-managesieved \
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acl libcap2-bin sudo certbot
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# Copy the binaries. This overrides the debian packages with the ones we just
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# built above.
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COPY --from=build /go/bin/chasquid /go/bin/chasquid-util /go/bin/smtp-check /go/bin/mda-lmtp /usr/bin/
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# Let chasquid bind privileged ports, so we can run it as its own user.
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RUN setcap CAP_NET_BIND_SERVICE=+eip /usr/bin/chasquid
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# Copy docker-specific configurations.
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COPY docker/dovecot.conf /etc/dovecot/dovecot.conf
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COPY docker/chasquid.conf /etc/chasquid/chasquid.conf
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# Copy utility scripts.
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COPY docker/add-user.sh docker/entrypoint.sh /
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# chasquid: SMTP, submission, submission+tls.
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EXPOSE 25 465 587
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# dovecot: POP3s, IMAPs, managesieve.
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EXPOSE 993 995 4190
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# http for letsencrypt/certbot.
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EXPOSE 80 443
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# Store emails and chasquid databases in an external volume, to be mounted at
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# /data, so they're independent from the image itself.
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VOLUME /data
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# Put some directories where we expect persistent user data into /data.
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# Give the chasquid user access to the necessary configuration.
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RUN rmdir /etc/chasquid/domains/ && \
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ln -sf /data/chasquid/domains/ /etc/chasquid/domains && \
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rm -rf /etc/letsencrypt/ && \
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ln -sf /data/letsencrypt/ /etc/letsencrypt && \
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setfacl -R -m u:chasquid:rX /etc/chasquid/ && \
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mv /etc/chasquid/certs/ /etc/chasquid/certs-orig && \
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ln -s /etc/letsencrypt/live/ /etc/chasquid/certs
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# NOTE: Set AUTO_CERTS="example.com example.org" to automatically obtain and
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# renew certificates upon startup, via Letsencrypt. You're agreeing to their
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# ToS by setting this variable, so please review them carefully.
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# CERTS_EMAIL should be set to your email address so letsencrypt can send you
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# critical notifications.
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# Custom entry point that does some configuration checks and ensures
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# letsencrypt is properly set up.
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ENTRYPOINT ["/entrypoint.sh"]
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