anchor.diff: -FROM easypi/alpine-arm:3.7
  +FROM easypi/alpine-arm:3.8
   
   # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
   RUN addgroup -S redis && adduser -S -G redis redis
   
   # grab su-exec for easy step-down from root
  -RUN apk add --no-cache libgcc 'su-exec>=0.2'
  +RUN apk add --no-cache 'su-exec>=0.2'
   
  -ENV REDIS_VERSION 4.0.6
  -ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-4.0.6.tar.gz
  -ENV REDIS_DOWNLOAD_SHA 769b5d69ec237c3e0481a262ff5306ce30db9b5c8ceb14d1023491ca7be5f6fa
  +ENV REDIS_VERSION 4.0.10
  +ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-4.0.10.tar.gz
  +ENV REDIS_DOWNLOAD_SHA 1db67435a704f8d18aec9b9637b373c34aa233d65b6e174bdac4c1b161f38ca4
   
   # for redis-sentinel see: http://redis.io/topics/sentinel
   RUN set -ex; \
  
positive.code: 	\
  	rm -r /usr/src/redis; \
  	\
  	apk del .build-deps
  
  RUN mkdir /data && chown redis:redis /data
  VOLUME /data
  
negative.code: 	apk add --no-cache --virtual .build-deps \
  		coreutils \
  		gcc \
  		jemalloc-dev \
  		linux-headers \
  		make \
  		musl-dev \
  