anchor.diff:  
   # Install dependencies, GOSU & zammad
   RUN BUILD_DEPENDENCIES="git build-essential libffi-dev libpq5 libpq-dev" \
  -    GOSU_DEPENDENCIES="ca-certificates wget" \
       set -ex \
   	  && apt-get -y update \
       && /container/tool/add-multiple-process-stack \
       && /container/tool/add-service-available :nginx :ssl-tools \
  -    && apt-get install -y --force-yes --no-install-recommends ${BUILD_DEPENDENCIES} ${GOSU_DEPENDENCIES} mariadb-client-$MARIADB_MAJOR libmariadbclient-dev && rm -rf /var/lib/apt/lists/* \
  -	  && wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
  -	  && wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
  +    && apt-get install -y --force-yes --no-install-recommends ${BUILD_DEPENDENCIES} mariadb-client-$MARIADB_MAJOR libmariadbclient-dev && rm -rf /var/lib/apt/lists/* \
  +	  && curl -L -o /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
  +	  && curl -L -o /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
   	  && export GNUPGHOME="$(mktemp -d)" \
   	  && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
   	  && gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
  
positive.code:     && LC_ALL=C DEBIAN_FRONTEND=noninteractive apt install -y --no-install-recommends \
        ca-certificates \
        curl  \
      && curl -L -o light-baseimage.tar.gz https://github.com/osixia/docker-light-baseimage/archive/${LIGHT_BASEIMAGE_VERSION}.tar.gz \
      && mkdir -p container \
      && tar -xf light-baseimage.tar.gz -C container --strip-components 2 docker-light-baseimage-${LIGHT_BASEIMAGE_VERSION}/image \
      && cd container \
  
negative.code: 
  # Add MariaDB repository
  RUN apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xF1656F24C74CD1D8 \
      && echo "deb http://ftp.igh.cnrs.fr/pub/mariadb/repo/$MARIADB_MAJOR/debian stretch main" > /etc/apt/sources.list.d/mariadb.list \
      && { \
  		     echo 'Package: *'; \
  		     echo 'Pin: release o=MariaDB'; \
  