# InProcessTestClusterBuilder.ConfigureSiloHost(Action<InProcessTestSiloSpecificOptions, IHostApplicationBuilder>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.testinghost/orleans.testinghost.inprocesstestclusterbuilder/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.testinghost/orleans.testinghost.inprocesstestclusterbuilder/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.TestingHost/InProcTestClusterBuilder.cs#L79-L80)

```csharp
public InProcessTestClusterBuilder ConfigureSiloHost(Action<InProcessTestSiloSpecificOptions, IHostApplicationBuilder> configureSiloHostDelegate)
```

Adds a delegate to configure silo hosts.

### Parameters

- `configureSiloHostDelegate` (`Action<InProcessTestSiloSpecificOptions, IHostApplicationBuilder>`)

### Returns

The builder.