Deploy managed portal with Docker

Dockerfile

@@ -1,6 +1,7 @@
 FROM swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/library/golang:1.25.4-alpine AS builder
 
-ENV TZ=Asia/Shanghai
+ENV TZ=Asia/Shanghai \
+    GOPROXY=https://goproxy.cn,direct
 
 RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 RUN apk add --no-cache ca-certificates tzdata