About This Architecture

Multi-AZ Node.js web application on AWS using Application Load Balancer, Auto Scaling EC2 instances, and RDS MySQL with read replicas across two availability zones. Traffic flows from users through the Internet Gateway to the ALB, which distributes requests to Node.js EC2 instances in private subnets across AZ-1 and AZ-2, while database connections route to RDS with automatic failover. Secrets Manager secures database credentials via IAM roles, and NAT Gateway enables outbound internet access from private subnets without exposing instances. This architecture eliminates single points of failure, ensures automatic recovery from instance or AZ failures, and scales horizontally to handle traffic spikes. Fork this diagram on Diagrams.so to customize subnet ranges, instance types, or add additional services like CloudFront or ElastiCache. Cloud9 development environment is included for testing and load simulation within the VPC.

People also ask

How do I architect a highly available Node.js application on AWS across multiple availability zones?

This diagram shows a production-grade multi-AZ architecture with an Application Load Balancer distributing traffic to Auto Scaling EC2 instances running Node.js in private subnets across AZ-1 and AZ-2. RDS MySQL is configured with a primary instance and standby replica for automatic failover, while Secrets Manager stores database credentials accessed via IAM roles, eliminating hardcoded secrets.