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Add additional explanation of --mount=type=cache #10075

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Add additional explanation of --mount=type=cache #10075

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a28e84f
Add additional explanation of --mount=type=cache
mrob95 Dec 21, 2024
04b41fb
fix broken link to docker docs
mrob95 Dec 21, 2024
e7a7d47
fix prettier
mrob95 Dec 21, 2024
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6 changes: 5 additions & 1 deletion docs/guides/integration/docker.md
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Original file line number Diff line number Diff line change
Expand Up @@ -303,7 +303,7 @@ ENV UV_COMPILE_BYTECODE=1

### Caching

A [cache mount](https://docs.docker.com/build/guide/mounts/#add-a-cache-mount) can be used to
A [cache mount](https://docs.docker.com/build/cache/optimize/#use-cache-mounts) can be used to
improve performance across builds:

```dockerfile title="Dockerfile"
Expand All @@ -313,6 +313,10 @@ RUN --mount=type=cache,target=/root/.cache/uv \
uv sync
```

This will reuse downloaded packages across builds on the same machine, reducing the time taken to
install dependencies. The cache is only mounted for the duration of the `uv sync` command and is not
included in the final image, minimising the image size.

Changing the default [`UV_LINK_MODE`](../../reference/settings.md#link-mode) silences warnings about
not being able to use hard links since the cache and sync target are on separate file systems.

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