Dockerfile fix

-FROM golang:1.14
+FROM golang:1.14 as builder
 ENV APP_DIR $GOPATH/src/godevp
 RUN mkdir -p $APP_DIR
 WORKDIR $APP_DIR/
@@ -6,10 +6,15 @@ COPY ./pkg pkg
 COPY ./conf conf
 COPY ./go.mod go.mod
 COPY ./main.go main.go
-RUN ["ln","-sf","/usr/share/zoneinfo/Asia/Shanghai","/etc/localtime"]
+# RUN ["ln","-sf","/usr/share/zoneinfo/Asia/Shanghai","/etc/localtime"]
 ENV GO111MODULE on
 ENV GOPROXY https://goproxy.cn,direct
 RUN ["go","mod","tidy"]
 RUN ["go","build"]
+
+FROM alpine:latest
+RUN ["ln","-sf","/usr/share/zoneinfo/Asia/Shanghai","/etc/localtime"]
+WORKDIR /root/
+COPY --from=builder /go/src/godevp .
 EXPOSE 8082
 ENTRYPOINT ["./godevp"]
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