将docker镜像从一台机器复制到另一台机器
docker save -o <path for generated tar file> <image name>
dockerfile示例
FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py
dockerfile复制特定文件
COPY ["__BUILD_NUMBER", "README.md", "gulpfile", "another_file", "./"]
All the files and folders, the last is destination
dockerfile运行应用程序cmd
RUN apt-get install python3
CMD echo "Hello world"
ENTRYPOINT echo "Hello world"