# IResource.withDockerfileBaseImage

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Defined on: [IResource](/reference/api/typescript/aspire.hosting/iresource.md)
- Version: `13.4.0`
- Kind: `method`

Configures custom base images for generated Dockerfiles.

## Definition

```typescript
interface IResource {
  // ... omitted for brevity
  withDockerfileBaseImage(
      buildImage?: string,
      runtimeImage?: string): IResource;
}
```

## Signature

```typescript
withDockerfileBaseImage(
    buildImage?: string,
    runtimeImage?: string): IResource
```

## Parameters

- `buildImage` (`string`) `optional`
- `runtimeImage` (`string`) `optional`

## Returns

[IResource](/reference/api/typescript/aspire.hosting/iresource.md) `builder`

## Defined on

- [IResource](/reference/api/typescript/aspire.hosting/iresource.md) -- `interface`