# ContainerNetworkAliasAnnotation Constructors

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

Represents an annotation for a custom network alias for a container resource.

## ContainerNetworkAliasAnnotation(string)

- Name: `Constructor(string)`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ApplicationModel/ContainerNetworkAliasAnnotation.cs#L19-L28)

Creates a new instance of the [ContainerNetworkAliasAnnotation](/reference/api/csharp/aspire.hosting/containernetworkaliasannotation.md) class with the specified alias.

```csharp
public sealed class ContainerNetworkAliasAnnotation
{
    public ContainerNetworkAliasAnnotation(
        string alias)
    {
        // ...
    }
}
```

## Parameters

- `alias` (`string`)