增加新文件

+FROM golang:latest
+MAINTAINER  <>
+ENV APP_DIR $GOPATH/src/project
+RUN mkdir -p $APP_DIR
+WORKDIR $APP_DIR/
+COPY ./pkg pkg
+COPY ./go.mod go.mod
+COPY ./go.sum go.sum
+COPY ./main.go main.go
+RUN ["ln","-sf","/usr/share/zoneinfo/Asia/Shanghai","/etc/localtime"]
+ENV GO111MODULE on
+ENV GOPROXY https://goproxy.io
+RUN ["go","mod","tidy"]
+RUN ["ls"]
+RUN ["go","build"]
+ENTRYPOINT ["./project"]