39 lines
1.6 KiB
Docker
39 lines
1.6 KiB
Docker
# =============================================================================
|
|
# Postfix + PostgreSQL Relay/MTA Image
|
|
#
|
|
# A pure SMTP relay/MTA: receives inbound mail and forwards it based on
|
|
# PostgreSQL-backed relay_domains/transport_maps lookups, equivalent to the
|
|
# Postfix setup described in the SimpleLogin self-hosting documentation
|
|
# (https://github.com/simple-login/app). No domain, hostname, or database
|
|
# credentials are baked into the image; everything is templated from
|
|
# environment variables at container startup. This image has no knowledge
|
|
# of what consumes the relayed mail.
|
|
# =============================================================================
|
|
|
|
# POSTFIX_VERSION pins the Debian base image tag (e.g. "12-slim"), which in
|
|
# turn pins the postfix/postfix-pgsql package versions available via apt.
|
|
ARG POSTFIX_VERSION=12-slim
|
|
FROM debian:${POSTFIX_VERSION}
|
|
|
|
LABEL maintainer="Damien Arnodo"
|
|
LABEL description="Postfix SMTP relay/MTA with PostgreSQL-backed relay_domains and transport_maps lookups"
|
|
|
|
RUN echo "postfix postfix/main_mailer_type select No configuration" | debconf-set-selections \
|
|
&& echo "postfix postfix/mailname string localhost" | debconf-set-selections \
|
|
&& apt-get update \
|
|
&& apt-get install -y --no-install-recommends \
|
|
postfix \
|
|
postfix-pgsql \
|
|
gettext-base \
|
|
openssl \
|
|
ca-certificates \
|
|
&& rm -rf /var/lib/apt/lists/*
|
|
|
|
COPY templates/ /etc/postfix/templates/
|
|
COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
|
|
RUN chmod +x /usr/local/bin/docker-entrypoint.sh
|
|
|
|
EXPOSE 25
|
|
|
|
ENTRYPOINT ["docker-entrypoint.sh"]
|