anchor.diff:  
   RUN apk upgrade --update \
       && apk add bash tzdata wget ca-certificates \
  -    && wget ${CRXDL_DOWNLOAD_URL} -O /crxdl \
  -    && chmod +x /crxdl \
  +    && wget ${CRXDL_DOWNLOAD_URL} -O /usr/bin/crxdl \
  +    && chmod +x /usr/bin/crxdl \
       && ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
       && echo ${TZ} > /etc/timezone \
       && apk del wget \
  
positive.code: FROM alpine:3.8
  
  LABEL maintainer="mritd <mritd1234@gmail.com>"
  
  
negative.code: 
  EXPOSE 8080
  
  CMD ["crxdl"]
  