更新 'Dockerfile'

Dockerfile

@@ -1,4 +1,5 @@
-FROM golang:1.9.2
+#FROM golang:1.9.2
+FROM registry-vpc.cn-beijing.aliyuncs.com/xinyue/alpine-cst:1
 RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 RUN echo 'Asia/Shanghai' > /etc/timezone