edit redis volume

Author: Mahmoudz

redis/Dockerfile

@@ -4,6 +4,8 @@ MAINTAINER Mahmoud Zalt <mahmoud@zalt.me>
 
 #COPY redis.conf /usr/local/etc/redis/redis.conf
 
+VOLUME /var/lib/redis
+
 CMD [ "redis-server" ]
 
 EXPOSE 6379