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manifest: Require unpackers to create a config.json from the referenced config #454

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2 changes: 2 additions & 0 deletions config.md
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Expand Up @@ -4,6 +4,7 @@ An OCI *Image* is an ordered collection of root filesystem changes and the corre
This specification outlines the JSON format describing images for use with a container runtime and execution tool and its relationship to filesystem changesets, described in [Layers](layer.md).

This section defines the `application/vnd.oci.image.config.v1+json` [media type](media-types.md).
Implementations unpacking this type MUST generate a [version 1.0.0-rc2 runtime-spec configuration][runtime-config].

## Terminology

Expand Down Expand Up @@ -232,4 +233,5 @@ Here is an example image configuration JSON document:
}
```

[runtime-config]: https://github.com/opencontainers/runtime-spec/blob/v1.0.0-rc2/config.md
[runtime-platform]: https://github.com/opencontainers/runtime-spec/blob/v1.0.0-rc2/config.md#platform
3 changes: 3 additions & 0 deletions manifest.md
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Expand Up @@ -28,6 +28,7 @@ Unlike the [Manifest List](manifest-list.md), which contains information about a
- **`config`** *[descriptor](descriptor.md)*

This REQUIRED property references a configuration object for a container, by digest.
Implementations unpacking manifests MUST generate a [`config.json`][bundle-format] from the referenced configuration.
Beyond the [descriptor requirements](descriptor.md#properties), the value has the following additional restrictions:

- **`mediaType`** *string*
Expand Down Expand Up @@ -118,3 +119,5 @@ This specification defines the following annotation keys, which MAY be used by m
* **org.opencontainers.authors** contact details of the people or organization responsible for the image (freeform string)
* **org.opencontainers.homepage** URL to find more information on the image (string, must be a URL with scheme HTTP or HTTPS)
* **org.opencontainers.documentation** URL to get documentation on the image (string, must be a URL with scheme HTTP or HTTPS)

[bundle-format]: https://github.com/opencontainers/runtime-spec/blob/v1.0.0-rc2/bundle.md#container-format