anchor.diff:  ENV NGINX_VERSION 1.9.12
   
   RUN \
  -  build_pkgs="build-base linux-headers openssl-dev pcre-dev wget zlib-dev" \
  +  build_pkgs="build-base linux-headers openssl-dev pcre-dev wget zlib-dev gnupg" \
     && runtime_pkgs="ca-certificates openssl pcre zlib" \
     && apk --no-cache add ${build_pkgs} ${runtime_pkgs} \
     && mkdir -p /tmp/src \
  
positive.code:     --prefix=/etc/nginx \
      --http-log-path=/var/log/nginx/access.log \
      --error-log-path=/var/log/nginx/error.log \
      --sbin-path=/usr/local/sbin/nginx \
    && make \
    && make install \
    && make clean \
    && apk del build-base \
    && rm -rf /tmp/src \
    && strip -s /usr/sbin/nginx \
    && apk del ${build_pkgs} \
  
negative.code:   && ./configure \
      --user=www-data \
      --group=www-data \
      --sbin-path=/usr/sbin/nginx \
      --with-http_ssl_module \
      --with-http_realip_module \
      --with-http_addition_module \
  