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Update the gotcha in the proxy guide (#4164)

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Milos Gajdos 2023-12-15 18:20:52 +00:00 committed by GitHub
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docs/content/recipes/mirror.md
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@ -22,8 +22,7 @@ relying entirely on your local registry is the simplest scenario.
### Gotcha
It's currently not possible to mirror another private registry. Only the central
Hub can be mirrored.
It's currently possible to mirror only one upstream registry at a time.
The URL of a pull-through registry mirror must be the root of a domain.
No path components other than an optional trailing slash (`/`) are allowed.
@ -126,6 +125,11 @@ and add the `registry-mirrors` key and value, to make the change persistent.
>
> The mirror URL must be the root of the domain.
> **Note**
>
> Currently Docker daemon supports only mirrors of Docker Hub.
> It is not possible to run the Docker daemon against a pull through cache with another upstream registry.
Save the file and reload Docker for the change to take effect.
> Some log messages that appear to be errors are actually informational messages.