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Note that "FROM scratch" is now a special case

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Tianon Gravi
2015-04-21 10:30:38 -06:00
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# `FROM scratch`
This image is most useful in the context of building base images or super minimal images (such as images that contain only a single binary; see [`hello-world`](https://github.com/docker-library/hello-world) for an example).
As of Docker 1.5.0 (specifically, [`docker/docker#8827`](https://github.com/docker/docker/pull/8827)), `FROM scratch` is a no-op in the `Dockerfile`, and will not create an extra layer in your image (so a previously 2-layer image will now be a 1-layer image instead).