A DevOps engineer manages an AWS CodePipeline pipeline that builds and deploys a web application on AWS. The pipeline has a source stage, a build stage, and a deploy stage. When deployed properly, the

Question

Options

• AConfigure the CheckURL stage to use an Amazon CloudWatch action. Configure the action to
• BCreate an AWS Lambda function to check the response code status of the URL and to report a
• CConfigure the CheckURL stage to use an AWS CodeDeploy action. Configure the action with an
• DDeploy an Amazon API Gateway HTTP API that checks the response code status of the URL and

• A
  8% (3)
• B
  73% (27)
• C
  3% (1)
• D
  16% (6)

Explanation

AWS Lambda allows you to write custom logic that can perform an HTTP request to check the status of the application's home page. It can issue a request to the URL and check for the desired 200 OK HTTP response. This is a straightforward and efficient way to programmatically verify the health of the application. After the deploy stage, the CheckURL stage can invoke the Lambda function as a CodePipeline action. The Lambda function can make the HTTP request, check the status code, and return success or failure. If the Lambda function detects any other response code (such as 503), it can return a failure status, which will cause the pipeline to fail. This solution minimizes complexity and leverages existing AWS services, such as Lambda and CodePipeline's built-in ability to invoke Lambda functions. It provides real-time feedback on the health of the deployment without requiring additional services like API Gateway or Device Farm.

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