| 1 | Deploy the RDS DB Subnet Group and RDS PostgreSQL in private subnets to provide the database layer for the application. | 06/22/2026 | 06/22/2026 | |
| 2 | Deploy the EC2 Application Servers in the application layer and configure connectivity to the PostgreSQL database. | 06/23/2026 | 06/23/2026 | |
| 3 | Deploy the Application Load Balancer to distribute requests across the application servers and monitor the health of the target instances. | 06/24/2026 | 06/24/2026 | |
| 4 | Create an SQS Queue and Dead-Letter Queue (DLQ) to support asynchronous message processing and store messages that cannot be processed successfully. | 06/25/2026 | 06/25/2026 | |
| 5 | Configure S3 Event Notification to send events from the S3 Bucket to the SQS Queue when file upload activities occur. | 06/26/2026 | 06/26/2026 | |