creating cdk pipeline but it deletes itself

Question

hello,

I am trying to create a simple pipeline from udemy and at first its fine I even saw that the pipeline was being created and when it was almost complete i got a pipeline not found

here is my code

```
import * as cdk from 'aws-cdk-lib';
import { CodePipeline, CodePipelineSource, ShellStep } from 'aws-cdk-lib/pipelines';
import { Construct } from 'constructs';

export class CdkCicdStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

new CodePipeline(this, 'AwesomePipeline', {
      pipelineName: 'AwesomePipeline',
      synth: new ShellStep('Synth', {
        input: CodePipelineSource.gitHub('jameseraynor/cdk-cicd', 'main'),
        commands: [
          'npm ci',
          'npx cdk synth'
        ],
      })
    })
  }
}

```

and

```
#!/usr/bin/env node
import 'source-map-support/register';
import * as cdk from 'aws-cdk-lib';
import { CdkCicdStack } from '../lib/cdk-cicd-stack';

const app = new cdk.App();
new CdkCicdStack(app, 'CdkCicdStack', {
});

app.synth();
```
error while watching being created and deleted
![Enter image description here](/media/postImages/original/IMCDFIZTA0T-O_lFC8ve44FQ)

the unexpected actions of cleanup
![Enter image description here](/media/postImages/original/IMqjBWB-EoQ2ug37cyahIJJw)

Javier · Accepted Answer

for completeness. I asked in stackoverflow and the solution was to upload the code first to the repo and then run deploy.
the explanation given was that since the pipeline didn't see any code in the repo in the first place there was nothing for the pipeline to stay active.

re:Post Agent · Answer

The issue you're experiencing with your CDK pipeline deleting itself is likely due to the self-mutating nature of CDK pipelines. By default, CDK pipelines are designed to be self-mutating, which means they can update themselves. However, in some cases, this can lead to unexpected behavior like the pipeline deleting itself.

To resolve this issue, you need to make a few modifications to your code:

1. Add a `selfMutation` property to your pipeline configuration:

```typescript
new CodePipeline(this, 'AwesomePipeline', {
  pipelineName: 'AwesomePipeline',
  selfMutation: true,
  synth: new ShellStep('Synth', {
    input: CodePipelineSource.gitHub('jameseraynor/cdk-cicd', 'main'),
    commands: [
      'npm ci',
      'npx cdk synth'
    ],
  })
})
```

2. Ensure that you have the necessary permissions for the pipeline to update itself. You may need to add an IAM policy to allow the pipeline to modify its own resources.

3. If you're using Docker image assets in your pipeline, you should also enable Docker for self-mutation:

```typescript
new CodePipeline(this, 'AwesomePipeline', {
  pipelineName: 'AwesomePipeline',
  selfMutation: true,
  dockerEnabledForSelfMutation: true,
  synth: new ShellStep('Synth', {
    input: CodePipelineSource.gitHub('jameseraynor/cdk-cicd', 'main'),
    commands: [
      'npm ci',
      'npx cdk synth'
    ],
  })
})
```

4. Make sure your GitHub repository is properly connected and the pipeline has the necessary permissions to access it.

5. Double-check that your CDK version is up-to-date, as older versions might have issues with self-mutating pipelines.

By making these changes, you should be able to create a stable, self-mutating pipeline that doesn't delete itself unexpectedly. If you continue to experience issues, you may need to investigate your IAM permissions and ensure that the pipeline has the correct access to modify its own resources.  
**Sources**  
[interface CodeBuildStepProps · AWS CDK](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.pipelines.CodeBuildStepProps.html)  
[interface BuildEnvironment · AWS CDK](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_codebuild.BuildEnvironment.html)

creating cdk pipeline but it deletes itself

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