# KubernetesHostingOptions.ServiceIdEnvironmentVariable

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.hosting.kubernetes/orleans.hosting.kubernetes.kuberneteshostingoptions/) | [Fields](/orleans/docs/api/csharp/microsoft.orleans.hosting.kubernetes/orleans.hosting.kubernetes.kuberneteshostingoptions/fields/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Hosting.Kubernetes/KubernetesHostingOptions.cs)

```csharp
public const string ServiceIdEnvironmentVariable
```

The environment variable for specifying [ClusterOptions](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.configuration.clusteroptions/).