feat(dev): add devcontainer config to test and dev on sogo

.devcontainer/conf/dovecot/Dockerfile

@@ -0,0 +1,72 @@
+# From https://github.com/dovecot/docker/blob/main/2.3.21.1/
+FROM debian:11-slim
+
+LABEL org.opencontainers.image.authors="dovecot@dovecot.org"
+
+ENV container=docker \
+    LC_ALL=C
+ARG DEBIAN_FRONTEND=noninteractive
+
+ADD dovecot.gpg /etc/apt/keyrings/dovecot.gpg
+ADD dovecot.list /etc/apt/sources.list.d
+
+RUN apt-get -y update && apt-get -y install \
+    tini \
+    dovecot-core \
+    dovecot-gssapi \
+    dovecot-imapd \
+    dovecot-ldap \
+    dovecot-lmtpd \
+    dovecot-managesieved \
+    dovecot-mysql \
+    dovecot-pgsql \
+    dovecot-pop3d \
+    dovecot-sieve \
+    dovecot-solr \
+    dovecot-sqlite \
+    dovecot-submissiond \
+    ca-certificates \
+    ssl-cert && \
+    rm -rf /var/lib/apt/lists && \
+    groupadd -g 1000 vmail && \
+    useradd -u 1000 -g 1000 vmail -d /srv/vmail && \
+    passwd -l vmail && \
+    rm -rf /etc/dovecot && \
+    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
+
+# Add for SOGo env
+RUN apt-get update  --allow-insecure-repositories && \
+    apt-get install --allow-unauthenticated -y dovecot-ldap dovecot-sieve dovecot-managesieved dovecot-lmtpd
+
+RUN chown -R dovecot:dovecot /var/mail
+RUN mkdir /var/sieve && \
+    chmod -R 755 /var/sieve && \
+    chown -R vmail:vmail /var/sieve
+
+ADD dovecot.conf /etc/dovecot/dovecot.conf
+ADD conf.d /etc/dovecot/conf.d
+ADD dovecot-ldap.conf.ext /etc/dovecot/dovecot-ldap.conf.ext
+# Clean
+RUN apt-get clean && rm -rf /var/lib/apt/lists/* 
+# End add for SOGo env
+
+ADD wait-for-it.sh /wait-for-it.sh
+
+EXPOSE 24
+EXPOSE 110
+EXPOSE 143
+EXPOSE 587
+EXPOSE 990
+EXPOSE 993
+EXPOSE 4190
+
+VOLUME ["/etc/dovecot", "/srv/mail"]
+ENTRYPOINT ["/usr/bin/tini", "--"]
+CMD ["./wait-for-it.sh", "openldap:389", "--", "/usr/sbin/dovecot", "-F"]