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postfix-cloudflare (sha256:085e50f15c51f2fa69dc6c11d60c0523c7a39e4fa4f766dadfa29524bd0dc0a9)

Published 2025-09-12 06:22:05 +00:00 by tilian

Installation

docker pull git.tburg.net/tilian/postfix-cloudflare@sha256:085e50f15c51f2fa69dc6c11d60c0523c7a39e4fa4f766dadfa29524bd0dc0a9
sha256:085e50f15c51f2fa69dc6c11d60c0523c7a39e4fa4f766dadfa29524bd0dc0a9

Image layers

ADD alpine-minirootfs-3.20.7-x86_64.tar.gz / # buildkit
CMD ["/bin/sh"]
LABEL AUTHOR=Tilian Burger <me@tilian.au>
LABEL DESCRIPTION=A Docker image for running Postfix with SSL/TLS and Cloudflare DNS for ACME challenges.
RUN /bin/sh -c apk add --no-cache postfix certbot certbot-dns-cloudflare ca-certificates libcap mailcap opendkim opendkim-utils gettext # buildkit
VOLUME [/etc/letsencrypt]
VOLUME [/var/db/dkim]
COPY /usr/bin/caddy /usr/bin/caddy # buildkit
COPY Caddyfile /etc/caddy/Caddyfile # buildkit
COPY opendkim.conf.template /etc/opendkim/opendkim.conf.template # buildkit
COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh # buildkit
RUN /bin/sh -c chmod +x /usr/local/bin/docker-entrypoint.sh # buildkit
ENV POSTFIX_MYNETWORKS=10.0.0.0/8
ENV RELAY_PORT=25
ENV DKIM_SELECTOR=default
ENV DKIM_KEY_SIZE=2048
EXPOSE &{[{{27 0} {27 0}}] 0xc000676ac0}
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]

Labels

Key Value
AUTHOR Tilian Burger <me@tilian.au>
DESCRIPTION A Docker image for running Postfix with SSL/TLS and Cloudflare DNS for ACME challenges.
Details
Container
2025-09-12 06:22:05 +00:00
1
OCI / Docker
linux/amd64
58 MiB
Versions (37) View all
main-01f80fd 2025-09-12
latest 2025-09-12
main 2025-09-12
dev-opendkim 2025-09-12
dev-opendkim-3213a3a 2025-09-12