anchor.diff:  # syntax=docker/dockerfile:1.0-experimental
  -ARG NGINX_VERSION=1.19.9
   ARG BUILD_OS=debian
   
   ############################################# Base image for Debian #############################################
  -FROM nginx:$NGINX_VERSION AS debian
  +FROM nginx:1.19.9 AS debian
   ARG IC_VERSION
   
   LABEL version=debian-nginx-$NGINX_VERSION-$IC_VERSION
  
positive.code: 	build-essential \
  	cmake \
  	git \
  	libcurl4-openssl-dev \
  	libcurl4-openssl-dev \
  	libgeoip-dev \
  	liblmdb-dev \
  
negative.code: 
  ############################################# Build image for Opentracing #############################################
  FROM debian as opentracing
  ARG OPENTRACING_VERSION=1.6.0
  ARG IC_VERSION
  
  LABEL version=debian-nginx-opentracing-$NGINX_VERSION-$IC_VERSION
  
  COPY --from=opentracing-builder /nginx-${NGINX_VERSION}/objs/ngx_http_opentracing_module.so /usr/lib/nginx/modules/ngx_http_opentracing_module.so
  COPY --from=opentracing-builder /usr/local/lib/libopentracing.so.${OPENTRACING_VERSION} /usr/local/lib/libopentracing.so.1
  