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Merge pull request #10084 from ShivangGoswami/patch-1 

Update dockerfile best practices
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Usha Mandya 2019-12-27 10:55:04 +00:00 committed by GitHub
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develop/develop-images/dockerfile_best-practices.md
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@ -654,7 +654,7 @@ auto-magically bump the version of the software in your container.
Each `ENV` line creates a new intermediate layer, just like `RUN` commands. This Each `ENV` line creates a new intermediate layer, just like `RUN` commands. This
means that even if you unset the environment variable in a future layer, it means that even if you unset the environment variable in a future layer, it
still persists in this layer and its value can be dumped. You can test this by still persists in this layer and its value can't be dumped. You can test this by
creating a Dockerfile like the following, and then building it. creating a Dockerfile like the following, and then building it.
```Dockerfile ```Dockerfile