Insert a stage in the CodePipeline between the source and deploy stages. Utilize AWS CodeBuild to establish a runtime environment and execute test scripts via build commands in the buildspec file. If errors are detected, halt the deployment using the aws deploy stop-deployment command.

Insert a stage in the CodePipeline between the source and deploy stages. Invoke an AWS Lambda function in this stage to execute the test scripts. If errors are detected, halt the deployment using the aws deploy stop-deployment command.

Include a hooks section in the CodeDeploy AppSpec file. Use the AfterAllowTestTraffic lifecycle event to trigger an AWS Lambda function that runs the test scripts. If errors are detected, terminate the Lambda function with an error code to initiate a rollback.

Include a hooks section in the CodeDeploy AppSpec file. Use the AfterAllowTraffic lifecycle event to trigger the test scripts. If errors are detected, halt the deployment using the aws deploy stop-deployment CLI command.