# PipelineStepAnnotation

- Kind: `class`
- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Version: `13.3.0`
- Namespace: `Aspire.Hosting.Pipelines`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/Pipelines/PipelineStepAnnotation.cs)
- Implements: [IResourceAnnotation](/reference/api/csharp/aspire.hosting/iresourceannotation.md)

An annotation that creates pipeline steps for a resource during deployment.

## Definition

```csharp
namespace Aspire.Hosting.Pipelines;

public class PipelineStepAnnotation
    : Aspire.Hosting.ApplicationModel.IResourceAnnotation
{
    // ...
}
```

## Constructors

- [PipelineStepAnnotation(Func<PipelineStepFactoryContext, PipelineStep>)](/reference/api/csharp/aspire.hosting/pipelinestepannotation/constructors.md#constructor-func-pipelinestepfactorycontext-pipelinestep) -- Initializes a new instance of the [PipelineStepAnnotation](/reference/api/csharp/aspire.hosting/pipelinestepannotation.md) class.
- [PipelineStepAnnotation(Func<PipelineStepFactoryContext, Task<PipelineStep>>)](/reference/api/csharp/aspire.hosting/pipelinestepannotation/constructors.md#constructor-func-pipelinestepfactorycontext-task-pipelinestep) -- Initializes a new instance of the [PipelineStepAnnotation](/reference/api/csharp/aspire.hosting/pipelinestepannotation.md) class.
- [PipelineStepAnnotation(Func<PipelineStepFactoryContext, IEnumerable<PipelineStep>>)](/reference/api/csharp/aspire.hosting/pipelinestepannotation/constructors.md#constructor-func-pipelinestepfactorycontext-ienumerable-pipelinestep) -- Initializes a new instance of the [PipelineStepAnnotation](/reference/api/csharp/aspire.hosting/pipelinestepannotation.md) class with a factory that creates multiple pipeline steps.
- [PipelineStepAnnotation(Func<PipelineStepFactoryContext, Task<IEnumerable<PipelineStep>>>)](/reference/api/csharp/aspire.hosting/pipelinestepannotation/constructors.md#constructor-func-pipelinestepfactorycontext-task-ienumerable-pipelinestep) -- Initializes a new instance of the [PipelineStepAnnotation](/reference/api/csharp/aspire.hosting/pipelinestepannotation.md) class with a factory that creates multiple pipeline steps.

## Methods

- [CreateStepsAsync(PipelineStepFactoryContext)](/reference/api/csharp/aspire.hosting/pipelinestepannotation/methods.md#createstepsasync-pipelinestepfactorycontext) : [Task<IEnumerable<PipelineStep>>](/reference/api/csharp/aspire.hosting/pipelinestep.md) -- Creates pipeline steps asynchronously.