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# 注释: Dockerfile CMD指令
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FROM busybox
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WORKDIR /app
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# 注意：只执行最后一个CMD
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# CMD /bin/sh -c 'echo 我是CMD指令shell方式执行后写入的内容'
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# CMD ["/bin/sh", "-c", "read -p 输入任意键退出容器 "]
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# eCMD ["-c", "read -p 输入任意键退出容器 "]
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ENTRYPOINT ["read", "-p xxxxxxxx"]
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# ENTRYPOINT ["/bin/sh", "-c", "read -p 'Enter any key to exit the container' "]
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# 提供默认参数，与 ENTRYPOINT 指令配合使用
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# CMD ["-c", "echo 为 ENTRYPOINT 提供默认参数"]
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# ENTRYPOINT [ "/bin/sh" ]
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# 注意：后台运行的话，因为执行完成cmd命令后，进程结束。容器就自动退出了。
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# 可以使用阻塞命令：如等待用户输入等，来阻止容器自动退出
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# docker build --rm -f Dockerfile.CMD -t study:buildcmd1 .
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# docker run --rm -it --name cmd.study study:buildcmd1
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