anchor.diff:  FROM alpine:3.3
  +MAINTAINER searx <https://github.com/asciimoo/searx>
  +LABEL description "A privacy-respecting, hackable metasearch engine."
   
   ENV BASE_URL=False IMAGE_PROXY=False
   EXPOSE 8888
   WORKDIR /usr/local/searx
  -CMD ["./run.sh"]
  +CMD ["/usr/bin/tini","--","/usr/local/searx/run.sh"]
   
   RUN adduser -D -h /usr/local/searx -s /bin/sh searx searx \
    && echo '#!/bin/sh' >> run.sh \
  
positive.code: 
  COPY requirements.txt ./requirements.txt
  
  RUN apk -U add \
      build-base \
      python \
      python-dev \
  
negative.code:     openssl \
      openssl-dev \
      ca-certificates \
      tini@commuedge \
   && pip install --no-cache -r requirements.txt \
   && apk del \
      build-base \
  