anchor.diff:  FROM ubuntu:18.04
   ENV OM_VER_MAJ='5'
   ENV OM_VER_MIN='0'
  -ENV OM_VER_MIC='0-M2'
  +ENV OM_VER_MIC='0-M3'
   ENV OM_VERSION="${OM_VER_MAJ}.${OM_VER_MIN}.${OM_VER_MIC}"
   LABEL vendor="Apache OpenMeetings dev team"
   LABEL version="${OM_VERSION}"
  
positive.code:                      hkp://pgp.mit.edu:80 \
                       hkp://keyserver.pgp.com:80 \
      ; do \
        gpg --keyserver "$server" --recv-keys C467526E && break || echo "Trying new server..." \
      ; done \
    && gpg --batch --verify ${work}/om.asc ${work}/om.tar.gz \
    && tar -xzf ${work}/om.tar.gz --strip-components=1 -C ${OM_HOME}/ \
    && rm -rf ${GNUPGHOME} ${work}/om.asc ${work}/om.tar.gz \
    && wget https://repo1.maven.org/maven2/mysql/mysql-connector-java/${MYSQL_J_VER}/mysql-connector-java-${MYSQL_J_VER}.jar -P ${OM_HOME}/webapps/openmeetings/WEB-INF/lib \
    && wget https://repo1.maven.org/maven2/com/ibm/db2/jcc/${DB2_J_VER}/jcc-${DB2_J_VER}.jar -P ${OM_HOME}/webapps/openmeetings/WEB-INF/lib \
    && sed -i 's|<policy domain="coder" rights="none" pattern="PS" />|<!--policy domain="coder" rights="none" pattern="PS" />|g; s|<policy domain="coder" rights="none" pattern="XPS" />|<policy domain="coder" rights="none" pattern="XPS" /-->|g' /etc/ImageMagick-6/policy.xml 
  
  WORKDIR ${work}
  COPY scripts/*.sh ./
  
negative.code: ENV OM_DATA_DIR="/opt/omdata"
  ENV work=/opt
  ENV OM_HOME=/opt/openmeetings
  ENV MYSQL_J_VER="8.0.18"
  ENV DB2_J_VER="11.5.0.0"
  ENV PORTS=5443
  
  WORKDIR ${OM_HOME}
  