cacert-devsetup/mail.Dockerfile

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Docker
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FROM debian:buster
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive \
apt-get install -y --no-install-recommends \
ca-certificates \
curl \
dovecot-imapd \
dumb-init \
mutt \
psmisc \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
EXPOSE 143
RUN adduser --uid 1000 --gecos "catchall mailbox" --disabled-password catchall
COPY docker/imap_auth.conf /etc/dovecot/conf.d/10-auth.conf
COPY docker/imap_plain_userdb.conf /etc/dovecot/conf.d/auth-plain-userdb.conf.ext
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VOLUME /home/catchall/Maildir
COPY docker/run-dovecot /usr/local/bin/run-dovecot
CMD ["dumb-init", "/usr/local/bin/run-dovecot"]