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### 参考文档
* `Dockerfie` 官方文档：https://docs.docker.com/engine/reference/builder/
* `Dockerfile` 最佳实践文档：https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/
* `Docker` 官方镜像 `Dockerfile`：https://github.com/docker-library/docs