anchor.diff:      rm -r /var/lib/apt/lists/* && \
       curl https://raw.githubusercontent.com/${SUPERSET_REPO}/${SUPERSET_VERSION}/requirements.txt -o requirements.txt && \
       pip install --no-cache-dir -r requirements.txt && \
  +    rm requirements.txt && \
       pip install --no-cache-dir \
  -        Werkzeug==0.14.1 \
           flask-cors==3.0.3 \
           flask-mail==0.9.1 \
           flask-oauth==0.12 \
  
positive.code:         mysqlclient==1.3.7 \
          psycopg2==2.6.1 \
          pyathena==1.2.5 \
          pyhive==0.5.1 \
          pyldap==2.4.28 \
          pymssql==2.1.3 \
          pybigquery==0.4.10 \
          redis==2.10.5 \
          sqlalchemy-clickhouse==0.1.5.post0 \
          sqlalchemy-redshift==0.7.1 \
          superset==${SUPERSET_VERSION} && \
      rm requirements.txt
  
  # Configure Filesystem
  COPY superset /usr/local/bin
  
negative.code:         build-essential \
          curl \
          default-libmysqlclient-dev \
          freetds-bin \
          freetds-dev \
          libffi-dev \
          libldap2-dev \
          libpq-dev \
  