# ContainerBuildOptionsCallbackContext Constructors

- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Type: [ContainerBuildOptionsCallbackContext](/reference/api/csharp/aspire.hosting/containerbuildoptionscallbackcontext.md)
- Kind: `Constructors`
- Members: `1`

Context for configuring container build options via a callback.

## ContainerBuildOptionsCallbackContext(IResource, IServiceProvider, ILogger, CancellationToken, DistributedApplicationExecutionContext)

- Name: `Constructor(IResource, IServiceProvider, ILogger, CancellationToken, DistributedApplicationExecutionContext)`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/a3766e994fd2cba86c8ac60b8a80268cab7e6383/src/Aspire.Hosting/ApplicationModel/ContainerBuildOptionsCallbackAnnotation.cs#L50-L62)

Initializes a new instance of [ContainerBuildOptionsCallbackContext](/reference/api/csharp/aspire.hosting/containerbuildoptionscallbackcontext.md).

```csharp
public sealed class ContainerBuildOptionsCallbackContext
{
    public ContainerBuildOptionsCallbackContext(
        IResource resource,
        IServiceProvider services,
        ILogger logger,
        CancellationToken cancellationToken,
        DistributedApplicationExecutionContext executionContext)
    {
        // ...
    }
}
```

## Parameters

- `resource` ([IResource](/reference/api/csharp/aspire.hosting/iresource.md))
  The resource being built.
- `services` (`IServiceProvider`)
  The service provider.
- `logger` (`ILogger`)
  The logger instance.
- `cancellationToken` (`CancellationToken`)
  The cancellation token.
- `executionContext` ([DistributedApplicationExecutionContext](/reference/api/csharp/aspire.hosting/distributedapplicationexecutioncontext.md))
  The distributed application execution context.