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Merge pull request #2192 from mdkalish/patch-1

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Update dead link and add missing info on COPY
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Sebastiaan van Stijn 2020-05-01 18:37:02 +02:00 committed by GitHub
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1 changed files with 11 additions and 3 deletions
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docs/reference/builder.md
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@ -743,8 +743,7 @@ flag, for example `docker build --no-cache`.
See the [`Dockerfile` Best Practices
guide](https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/) for more information.
The cache for `RUN` instructions can be invalidated by `ADD` instructions. See
[below](#add) for details.
The cache for `RUN` instructions can be invalidated by [`ADD`](#add) and [`COPY`](#copy) instructions.
### Known issues (RUN)
@ -1114,7 +1113,7 @@ does not support authentication.
> following instructions from the Dockerfile if the contents of `<src>` have
> changed. This includes invalidating the cache for `RUN` instructions.
> See the [`Dockerfile` Best Practices
guide](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/)
guide – Leverage build cache](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#leverage-build-cache)
> for more information.
@ -1303,6 +1302,15 @@ image with the same name is attempted to be used instead.
- If `<dest>` doesn't exist, it is created along with all missing directories
in its path.
> **Note**
>
> The first encountered `COPY` instruction will invalidate the cache for all
> following instructions from the Dockerfile if the contents of `<src>` have
> changed. This includes invalidating the cache for `RUN` instructions.
> See the [`Dockerfile` Best Practices
guide – Leverage build cache](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#leverage-build-cache)
> for more information.
## ENTRYPOINT