FROM registry.hub.docker.com/library/debian:buster-slim
# hadolint ignore=DL3008
RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        apt-transport-https \
        ca-certificates \
        gnupg \
    && \
    apt-key adv --keyserver hkp://keys.gnupg.net --recv-key 0x810273C4 && \
    echo 'deb https://packages.inverse.ca/SOGo/nightly/5/debian/ buster buster' > /etc/apt/sources.list.d/sogo.list && \
    apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        sogo-activesync \
        sogo \
    && \
    rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/* /var/cache/apt/archives/*
EXPOSE 20000
USER "www-data"
WORKDIR /var/www
CMD [ "apache2", "-DFOREGROUND" ]
HEALTHCHECK CMD wget --spider --quiet http://localhost:20000/ --user-agent 'Healthcheck' || exit 1
