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CamSoper merged 2 commits into from
Apr 23, 2025
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Add documentation for ContainerImageFormat Container Publishing flag #45908

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Add documentation for `ContainerImageFormat` Container Publishing flag
CamSoper Apr 23, 2025
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CamSoper Apr 23, 2025
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14 changes: 13 additions & 1 deletion docs/core/containers/publish-configuration.md
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Expand Up @@ -154,7 +154,19 @@ The container repository is the name of the image itself, for example, `dotnet/r

Image names consist of one or more slash-delimited segments, each of which can only contain lowercase alphanumeric characters, periods, underscores, and dashes, and must start with a letter or number. Any other characters result in an error being thrown.

### `ContainerImageTag(s)`
### `ContainerImageFormat`

Starting with .NET 8.0.405, you can use the `ContainerImageFormat` MSBuild property to specify the image format as either `Docker` or `OCI`. By default, the .NET tooling infers the format from the base image. For example, .NET base images use the Docker-specific format `application/vnd.docker.distribution.manifest.v2+json`. However, many modern tools prefer the OCI format `application/vnd.oci.image.manifest.v1+json`. To force a specific format, set the property as shown:

```xml
<PropertyGroup>
<ContainerImageFormat>OCI</ContainerImageFormat>
</PropertyGroup>
```

Both formats are largely interchangeable without loss of information.

### `ContainerImageTag`

The container image tag property controls the tags that are generated for the image. To specify a single tag use `ContainerImageTag` and for multiple tags use `ContainerImageTags`.

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