# addK3sCluster

- Module: [CommunityToolkit.Aspire.Hosting.K3s](/reference/api/typescript/communitytoolkit.aspire.hosting.k3s.md)
- Version: `13.5.0`
- Kind: `method`
- Source: [GitHub](https://github.com/CommunityToolkit/Aspire/tree/4ff8268fbd97ddd23cb73dc8eff9cc92718156d1)

Adds a k3s Kubernetes cluster to the distributed application.

## Definition

```typescript
interface IDistributedApplicationBuilder {
  // ... omitted for brevity
  addK3sCluster(
    name: string,
    apiServerPort?: number,
    agentCount?: number): K3sClusterResource
}
```

## Parameters

- `name` (`string`)
- `apiServerPort` (`number`) `optional`
- `agentCount` (`number`) `optional`

## Returns

[K3sClusterResource](/reference/api/typescript/communitytoolkit.aspire.hosting.k3s/k3sclusterresource.md) `builder`

## Applies to

- [IDistributedApplicationBuilder](/reference/api/typescript/communitytoolkit.aspire.hosting.k3s/idistributedapplicationbuilder.md)