# ContainerRegistryReferenceAnnotation Constructors

- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Type: [ContainerRegistryReferenceAnnotation](/reference/api/csharp/aspire.hosting/containerregistryreferenceannotation.md)
- Kind: `Constructors`
- Members: `1`

Annotation that indicates a resource is using a specific container registry.

## ContainerRegistryReferenceAnnotation(IContainerRegistry)

- Name: `Constructor(IContainerRegistry)`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ApplicationModel/ContainerRegistryReferenceAnnotation.cs#L13-L18)

Annotation that indicates a resource is using a specific container registry.

```csharp
public class ContainerRegistryReferenceAnnotation
{
    public ContainerRegistryReferenceAnnotation(
        IContainerRegistry registry)
    {
        // ...
    }
}
```

## Parameters

- `registry` ([IContainerRegistry](/reference/api/csharp/aspire.hosting/icontainerregistry.md))
  The container registry resource.

## Remarks

Initializes a new instance of the [ContainerRegistryReferenceAnnotation](/reference/api/csharp/aspire.hosting/containerregistryreferenceannotation.md) class.