dockerfiles/postfix/Dockerfile

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FROM alpine:latest
RUN apk add --no-cache \
bash \
ca-certificates \
libsasl \
mailx \
postfix \
rsyslog \
runit \
--repository http://dl-cdn.alpinelinux.org/alpine/edge/main
COPY service /etc/service
COPY runit_bootstrap /usr/sbin/runit_bootstrap
COPY rsyslog.conf /etc/rsyslog.conf
RUN ln -sf /dev/stdout /var/log/mail.log
STOPSIGNAL SIGKILL
ENTRYPOINT ["/usr/sbin/runit_bootstrap"]