anchor.diff:  FROM python:3.6.6-slim-stretch
  +
  +# Project files
  +ARG PROJECT_DIR=/srv/scripts
  +RUN mkdir -p $PROJECT_DIR
  +WORKDIR $PROJECT_DIR
  +COPY ./init ./
   
   # Add dependencies for Python package pyodbc
   RUN apt-get update \
       && apt-get install -y g++ unixodbc-dev
  -
  -# Install Python dependencies
  -RUN pip install --upgrade pip \
  -    && pip install -r requirements.txt
   
   # Add FreeTDS ODBC driver for Microsoft SQL Server
   RUN apt-get install -y tdsodbc
  
positive.code:     && echo "host = $MAIL_HOST" >> ./scripts.cfg \
      && echo "port = $MAIL_PORT" >> ./scripts.cfg \
      && echo "sender = $MAIL_SENDER" >> ./scripts.cfg
  
negative.code: RUN dpkg -i ./tdodbc1620/tdodbc1620-16.20.00.36-1.noarch.deb
  RUN rm -R ./tdodbc1620
  
  # Install Python dependencies
  RUN pip install --upgrade pip \
      && pip install -r requirements.txt
  
  # Move ODBC configuration file
  RUN mv -f ./odbcinst.ini /etc
  