postfix/Dockerfile

20 lines
522 B
Docker

#Dockerfile for a Postfix email relay service
FROM alpine:3.20.2
COPY run.sh /
# hadolint ignore=DL3018
RUN apk update --no-cache && \
apk add --no-cache curl bash gawk cyrus-sasl cyrus-sasl-login cyrus-sasl-crammd5 mailx postfix-pcre \
postfix && \
mkdir -p /var/log/supervisor/ /var/run/supervisor/ && \
chmod +x /run.sh && \
newaliases
EXPOSE 25
#ENTRYPOINT ["/run.sh"]
CMD ["/run.sh"]
# health check
HEALTHCHECK --interval=1m --timeout=3s \
CMD curl -s smtp://localhost:25 -v >/dev/null 2>&1