A company is using AWS CodePipeline to automate its release pipeline. AWS CodeDeploy is being used in the pipeline to deploy an application to Amazon ECS using the blue/green deployment model. The company wants to implement scripts to shifting traffic. These scripts will complete in 5 minutes or less If errors are discovered during these tests, the application must be rolled back.
Which strategy will meet these requirements?
A . Add a stage to the CodePipeline pipeline between the source and deploy stages Use AWS CodeBuild to create an execution environment and build commands in the buildspec file to invoke test scripts If errors are found, use the aws deploy stop-deployment command to stop the deployment
B. Add a stage to the CodePipeline pipeline between the source and deploy stages Use this stage to execute an AWS Lambda function that will run the test scripts If errors are found, use the aws deploy stop-deployment command to stop the deployment.
C. Add a hooks section to the CodeDeploy AppSpec file Use the AfterAllowTestTraffic lifecycle event to invoke an AWS Lambda function to run the test scripts. If errors are found, exit the Lambda function with an error to trigger rollback.
D. Add a hooks section to the CodeDeploy AppSpec file Use the AfterAllowTraffic lifecycle event to invoke the test scripts. If errors are found, use the aws deploy stop-deployment CLI command to stop the deployment.
Answer: A
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