dovecot Dockerfile

dovecot.conf

## You should mount /etc/dovecot if you want to
## manage this file

mail_home=/srv/mail/%Lu
mail_location=sdbox:~/Mail
mail_uid=1000
mail_gid=1000

protocols = imap pop3 submission sieve lmtp

first_valid_uid = 1000
last_valid_uid = 1000

passdb {
  driver = static
  args = password=pass
}

ssl=yes
ssl_cert=<cert.pem
ssl_key=<key.pem

namespace {
  inbox = yes
  separator = /
}

service lmtp {
  inet_listener {
    port = 24
  }
}

listen = *

log_path=/dev/stdout
info_log_path=/dev/stdout
debug_log_path=/dev/stdout

dovecot.list

deb http://repo.dovecot.org/ce-2.3.10.1/debian/buster buster main

gistfile1.txt

FROM debian:10
ADD dovecot.gpg /etc/apt/trusted.gpg.d
ADD dovecot.list /etc/apt/sources.list.d
ENV TINI_VERSION v0.18.0
ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini /sbin/tini
ENV container docker
ENV LC_ALL C
ENV DEBIAN_FRONTEND noninteractive

RUN apt-get -y update && apt-get -y install \
  dovecot-core \
  dovecot-coi \
  dovecot-gssapi \
  dovecot-imapd \
  dovecot-ldap \
  dovecot-lmtpd \
  dovecot-lua \
  dovecot-managesieved \
  dovecot-mysql \
  dovecot-pgsql \
  dovecot-pop3d \
  dovecot-sieve \
  dovecot-solr \
  dovecot-sqlite \
  dovecot-submissiond \
  ca-certificates \
  ssl-cert && \
  groupadd -g 1000 vmail && \
  useradd -u 1000 -g 1000 vmail -d /srv/vmail && \
  passwd -l vmail && \
  rm -rf /etc/dovecot && \
  chmod +x /sbin/tini && \
  mkdir /srv/mail && \
  chown vmail:vmail /srv/mail && \
  make-ssl-cert generate-default-snakeoil && \
  mkdir /etc/dovecot && \
  ln -s /etc/ssl/certs/ssl-cert-snakeoil.pem /etc/dovecot/cert.pem && \
  ln -s /etc/ssl/private/ssl-cert-snakeoil.key /etc/dovecot/key.pem
 
ADD dovecot.conf /etc/dovecot/dovecot.conf

VOLUME ["/etc/dovecot", "/srv/mail"]
ENTRYPOINT ["/sbin/tini", "--"]
CMD ["/usr/sbin/dovecot", "-F"]