anchor.diff:                          postgresql-plpython-${version} postgresql-${version}-plr postgresql-pltcl-${version} \
                           postgresql-${version}-plv8 postgresql-${version}-pllua postgresql-plperl-${version} \
                           libpq5=$version* libpq-dev=$version* postgresql-server-dev-${version} \
  +
  +            # Install bg_mon
  +            && make -C bg_mon-${BG_MON_COMMIT} USE_PGXS=1 clean install \
   
               # install 3rd party extensions
               && for extension in quantile trimmed_aggregates pg_repack; do \
  
positive.code: 
  ADD scm-source.json configure_spilo.py launch.sh postgres_backup.sh patroni_wait.sh post_init.sh _zmon_schema.dump callback_role.py basebackup.sh wale_restore_command.sh /
  ADD supervisor.d /etc/supervisor/conf.d/
  ADD stunnel.d /etc/stunnel
  ADD pgq_ticker.ini $PGHOME
  ADD motd /etc/
  RUN echo "source /etc/motd" >> /root/.bashrc
  
negative.code: # Install PostgreSQL
  ENV PGVERSION=9.6 PGOLDVERSIONS="9.3 9.4 9.5"
  RUN export DEBIAN_FRONTEND=noninteractive \
      && export BUILD_PACKAGES="gcc libc6-dev dpkg-dev make pgxnclient libedit-dev zlib1g-dev libssl-dev libselinux1-dev libkrb5-dev libxslt1-dev libxml2-dev libpam0g-dev libcurl4-openssl-dev libprotobuf-c-dev liblwgeom-dev pkg-config libproj-dev libevent-dev" \
  
      # Add PGDG repositories
      && export DISTRIB_CODENAME=$(sed -n 's/DISTRIB_CODENAME=//p' /etc/lsb-release) \
  