Scalable, Secure Infrastructure on AWS
Goal:
To design and implement a scalable, secure, and highly available infrastructure on AWS, leveraging best practices for VPC setup, application load balancing, auto scaling, monitoring, and security hardening.
Solution:
The solution involved creating a custom VPC with segregated public and private subnets, setting up an Application Load Balancer (ALB) with host-based routing, and configuring Auto Scaling Groups (ASG) for dynamic scaling based on demand. Security was enforced using security groups, NACLs, a Bastion host for SSH access, and a Web Application Firewall (WAF) with custom rules. Additionally, CloudWatch was used for monitoring and alerting, with CloudWatch Agent installed on EC2 instances for granular metrics collection. OS updates and Nginx hardening were also implemented to strengthen security.
Impact:
This implementation resulted in a highly resilient infrastructure that automatically scales based on demand, ensuring cost efficiency and optimal performance. Security was enhanced through network segmentation, firewalls, and continuous monitoring. The system’s reliability was improved with robust health checks and proactive scaling actions, while the infrastructure remained secure with up-to-date patches and hardened configurations. Overall, the solution provided a scalable, secure, and highly available environment for the application to thrive in production.
Project Overview:
This project aimed to build a robust AWS infrastructure for a web application with a focus on scalability, security, and high availability. Key deliverables included setting up a custom VPC, configuring Auto Scaling, consolidating ALBs, integrating monitoring tools like CloudWatch, and implementing security measures such as a WAF and regular patching. The solution ensures that the application can handle variable traffic loads while maintaining security and performance at all times.