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Building a Scalable Multi-Tier Web Application on AWS

  • This post covers a detailed implementation of a multi-tier web application, hosted on AWS, designed for scalability and high availability.
  • The application architecture includes an autoscaling group of EC2 instances to serve web requests, with a dedicated backend infrastructure for queue, database storage, and caching management.
  • Main requirements include a web application server, load balancing, autoscaling, backend servers for queuing, caching, and database storage, domain and SSL, DNS management, AWS CLI & Maven.
  • The three-tier architecture consists of Presentation Layer (Web App Frontend), Application Layer (Service Backend), and Data Layer (Database and Caching)
  • The implementation includes steps like creating key pairs and security groups, launching EC2 instances with user data scripts, configuring Route 53 for DNS, building and deploying the application code, setting up the application load balancer, configuring auto-scaling for the web application EC2 instances.
  • User access to the app, backend processing, scaling, and availability are key features that were levered to provide efficient handling of fluctuating traffic.
  • The AWS application helped in gaining valuable insights into scalable architecture, automated deployment, and cloud security.
  • In conclusion, the AWS set up provides a strong foundation for future applications.

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