# addDockerfileBuilder

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Version: `13.3.0`
- Kind: `method`
- Source: [GitHub](https://github.com/microsoft/aspire)

Adds a container resource built from a programmatically generated Dockerfile

## Definition

```typescript
interface IDistributedApplicationBuilder {
  // ... omitted for brevity
  addDockerfileBuilder(name: string, contextPath: string, callback: (arg: DockerfileBuilderCallbackContext) => Promise<void>, stage?: string): ContainerResource
}
```

## Parameters

- `name` (`string`)
- `contextPath` (`string`)
- `callback` (`(arg: DockerfileBuilderCallbackContext) => Promise<void>`)
- `stage` (`string`) `optional`

## Returns

[ContainerResource](/reference/api/typescript/aspire.hosting/containerresource.md) `builder`

## Applies to

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