anchor.diff:      ttf-dejavu-core \
       ca-certificates \
       wget \
  +    python-pip \
           && rm -rf /var/lib/apt/lists/*
   # add gosu for easy step-down from root
   ENV GOSU_VERSION 1.7
  
positive.code:         && rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
          && chmod +x /usr/local/bin/gosu \
          && gosu nobody true 
  # clone from github latest crawl version
  RUN git clone https://github.com/crawl/crawl.git \
          && cd /crawl \
          && git submodule update --init \
          && chown -R crawluser:crawluser /crawl \
          && cd /crawl/crawl-ref/source \
          && make TILES=y
  
  WORKDIR /crawl/crawl-ref/source
  
  
negative.code: ENTRYPOINT ["/entrypoint.sh"]
  
  #USER builduser
  CMD ["python ./webserver/server.py"]
  