Pull the image:
docker pull avelgornog/docker-sympa-ws
Add your specifics (cf. sample/):
FROM avelgornog/docker-sympa-ws
# Update the configuration
COPY ./etc/sympa /etc/sympa
RUN chown sympa.sympa -R /etc/sympa
# Copy id_rsa.pub (when using ssh between postfix and sympa)
RUN mkdir /var/lib/sympa/.ssh/ && chmod 700 /var/lib/sympa/.ssh/ && mkdir -p /var/spool/sympa/wwsbounce && mkdir -p /var/spool/sympa/bulk
COPY ./shared/id_rsa.pub /var/lib/sympa/.ssh/
# Update Locale
RUN locale-gen fr_FR.UTF-8 && export LANG=fr_FR.UTF-8