AWS Certified DevOps Engineer - Professional
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A company is transitioning its content sharing web application from an EC2-based architecture to a serverless model using Amazon API Gateway and AWS Lambda. They require a deployment strategy that allows them to update their application and conduct tests on a limited user base before a broader deployment. Which strategy should they adopt to meet these requirements?
A
Employ AWS CDK for deploying API Gateway and Lambda functions, updating the AWS CloudFormation stack for new code deployments, and utilizing a Route 53 failover routing policy for the canary release strategy.
B
Utilize AWS CloudFormation to deploy API Gateway and Lambda functions with Lambda function versions, updating the CloudFormation stack with new Lambda code, and employing a canary release strategy for API version updates, with promotion of the new version post-testing.
C
Deploy API Gateway and Lambda functions using AWS Elastic Beanstalk, deploying new API and Lambda function versions for code changes, and gradually shifting traffic with an Elastic Beanstalk blue/green deployment.
D
Deploy API Gateway in the service layer and Lambda functions in a custom layer using AWS OpsWorks, performing a blue/green deployment for code changes and gradually shifting traffic with OpsWorks.