Update .beagle/dockerfile

.beagle/dockerfile

@@ -10,7 +10,8 @@ ARG REDIS_DOWNLOAD_URL="http://download.redis.io/"
 
 ARG REDIS_VERSION="stable"
 
-RUN apk add --no-cache su-exec tzdata make curl build-base linux-headers bash openssl-dev
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories &&\
+apk add --no-cache su-exec tzdata make curl build-base linux-headers bash openssl-dev
 
 RUN curl -fL -Lo /tmp/redis-${REDIS_VERSION}.tar.gz ${REDIS_DOWNLOAD_URL}/redis-${REDIS_VERSION}.tar.gz && \
     cd /tmp && \