A company wants to containerize a multi-tier web application and move the application from an on-premises data center to AWS. The application includes web. application, and database tiers. The…

While ECS on Fargate and ElastiCache are good, Amazon S3 is object storage and not suitable for directly mounting and serving 'frequently accessed data available across application servers' as a file system.

Running ECS on Amazon EC2 requires managing the underlying EC2 instances and Auto Scaling groups, which entails higher operational overhead compared to the serverless AWS Fargate compute model.

Amazon S3 is not appropriate for direct shared file system access for application data. Also, while Amazon EKS is a powerful orchestrator, its management can be more complex than ECS unless Fargate profiles are explicitly used, and DynamoDB is a NoSQL database that may not be suitable for all multi-tier web applications.

Deploying the application on Amazon EKS with AWS Fargate profiles provides robust container orchestration with minimal operational overhead by offloading EC2 node management. Amazon ElastiCache for Redis is a highly scalable, managed service for session persistence, while Amazon EFS offers a resilient and shared file system across containers. Amazon Aurora provides a fully managed, scalable, and fault-tolerant relational database.