Which solution will meet these requirements with the LEAST development effort?
Use API Gateway stage variables and create Lambda aliases to reference environment-specific resources.
Use Amazon Elastic Container Service (Amazon ECS) to deploy the application to the environments.
Duplicate the code for each environment. Deploy the code to a separate API Gateway stage.
Use AWS Elastic Beanstalk to deploy the application to the environments.
Explanations:
This option uses API Gateway stage variables and Lambda aliases, allowing the same codebase to reference different resources for each environment. This approach minimizes development effort by avoiding code duplication and simplifies management across environments.
Using Amazon ECS requires containerization of the application, which adds complexity and overhead compared to serverless deployment. It also involves more development effort to manage container orchestration, scaling, and infrastructure.
Duplicating the code for each environment leads to increased maintenance overhead and the risk of inconsistencies between environments. This option requires more development effort due to the need for managing separate codebases.
AWS Elastic Beanstalk is more suited for applications that require traditional server management. It involves additional configuration and management effort compared to using serverless components like API Gateway and Lambda.
I surmise that the answer is:
Use API Gateway stage variables and create Lambda aliases to reference environment-specific resources.