While looking for reference here is a Typical 3-tier Web application architecture on AWS. This is the orchestration of how it utilizes AWS cloud-native technologies and infrastructure.
There are additional considerations not showing in the classic diagram but covering below-
User requests are routed through a DNS service, Amazon Route 53, to resolve domain names and route traffic to the appropriate endpoints.
Load Balancers, like Elastic Load Balancer (ELB) to distribute incoming traffic across multiple application instances. Integrate reverse proxies like Nginx or AWS ALB to improve routing, caching, and SSL termination.
Secure and scalable Network Architecture
Use Amazon VPC with public and private subnets, enforce Security Groups(SG) and NACLs to control traffic flow.
High Availability
Deploy across multiple Availability Zones (AZs) with Elastic Load Balancers (ELB) and auto-scaling groups for redundancy and scalability.
Content Delivery Network (CDN)
Speed up content delivery by caching assets closer to users using a CDN like Amazon CloudFront. This reduces latency and improves global performance for static and dynamic web content.
APIs for Communication
Implement RESTful API such as Amazon API Gateway for seamless communication between the front end and backend services. Ensure APIs are designed for scalability and monitored for performance.
Backend and Databases
Choose a database solution that fits your use case, such as Amazon RDS for relational databases or Amazon DynamoDB for NoSQL. Use distributed caching like Amazon ElastiCache to optimize query response times.
Job Queues for Background Tasks
Offload time-consuming processes like batch jobs or video processing to a queue service such as Amazon SQS (Simple Queue Service), and use AWS Lambda or EC2 instances as workers.
Monitoring and Logging
Use tools like Amazon CloudWatch for metrics, logs, and alerts. Combine it with services like AWS X-Ray for distributed tracing to identify bottlenecks and latency issues.
Alerting Systems
Configure automated alerts with Amazon CloudWatch Alarms or integrate with tools like Datadog, Splunk or Slack to quickly notify sysadmins, engineers of issues such as performance, database latency, utilization threshold, network and server failures etc.
Security and Data protection
Consider leveraging AWS security services, prioritize robust and secure design for your AWS environment. You can utilize services such as AWS Shield, GuardDuty, Security Hub, KMS, S3 Encryption, and Secrets Manager. Ensure data is encrypted both at rest and in transit, and adhere to security best practices.
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