anchor.diff:      && cd .. \
       && rm -rf "node-v${NODE_VERSION}" "node-v${NODE_VERSION}.tar.gz" \
       && echo 'export PATH=/usr/local/node/bin:$PATH' > /etc/profile.d/node.sh \
  -    && source /etc/profile.d/node.sh \
  -    \
  -    && git clone https://github.com/xiewulong/nginx.git /home/www/nginx \
  -    && cp /home/www/nginx/conf/nginx.conf.sample /home/www/nginx/conf/nginx.conf \
  -    && cp /home/www/nginx/vhost.conf.sample /home/www/nginx/vhost.conf \
  -    && mkdir /home/www/app \
  -    && chown www:www -R /home/www
  +    && source /etc/profile.d/node.sh
   
   ENV APP_PORT 3000
   EXPOSE 3000
   
  -VOLUME ["/home/www/app", "/home/www/nginx/conf/nginx.conf", "/home/www/nginx/vhost.conf"]
  +VOLUME ["/home/app"]
   ENTRYPOINT ["/usr/local/nginx/sbin/nginx"]
  -CMD ["-p", "/home/www/nginx"]
  +CMD ["-c", "/home/app/nginx.conf"]
  
positive.code:     # && apk del .build-deps \
      \
      && cd \
      && addgroup -S www \
      && adduser -D -S -s /sbin/nologin -G www www \
      \
      && wget -c "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR}/ruby-${RUBY_VERSION}.tar.gz" \
      && tar zxvf "ruby-${RUBY_VERSION}.tar.gz" \
  
negative.code:     && tar zxvf "nginx-${NGINX_VERSION}.tar.gz" \
      && cd "nginx-${NGINX_VERSION}" \
      && ./configure  --prefix=/usr/local/nginx \
                      --user=app \
                      --group=app \
                      --with-http_ssl_module \
                      --with-http_realip_module \
                      --with-http_addition_module \
  