anchor.diff:  		--with-ipv6 \
   		--with-pcre \
   		--with-pcre-jit \
  +		--with-compat \
   		--add-module=/usr/src/ngx_brotli \
   		--add-dynamic-module=/usr/src/nginx-rtmp-module-$RTMP_VERSION \
   		--add-dynamic-module=/usr/src/headers-more-nginx-module-$HEADERS_MORE_VERSION \
   	" \
  -	&& addgroup -g 99 -S nginx \
  -	&& adduser -D -S -H -h /var/cache/nginx -u 99 -s /sbin/nologin -G nginx nginx \
  -	&& apk upgrade -U --no-cache \
  +	&& addgroup -g $NGINX_UID -S $NGINX_USER \
  +	&& adduser -D -S -H -h /var/cache/nginx -u $NGINX_UID -s /sbin/nologin -G $NGINX_USER $NGINX_USER \
   	&& apk add --no-cache --virtual .build-deps \
   	    build-base \
   	    file \
  
positive.code: 	&& apk del .gettext --purge \
  	&& mv /tmp/envsubst /usr/local/bin/ \
  	\
  	# fix path to html files in nginx.conf
  	&& sed -i "s/root   html;/root \/usr\/share\/nginx\/html;/" /etc/nginx/nginx.conf \
  	\
  
negative.code: FROM alpine:3.5
  
  RUN NGINX_GPG_KEYS=B0F4253373F8F6F510D42178520A9993A1C052F8 \
      NGINX_VERSION=1.11.8 \
      RTMP_VERSION=1.1.10 \
      HEADERS_MORE_VERSION=0.32 \
      NGINX_UID=99 \
      NGINX_USER=nginx \
  	&& NGINX_CONF="\
  		--prefix=/etc/nginx \
  		--sbin-path=/usr/sbin/nginx \
  