Deploy Tomcat Apps to AWS

Short summary

This guide provides a production-ready walkthrough for deploying Tomcat applications to AWS ECS Fargate, covering security groups, RDS PostgreSQL, and ElastiCache Redis for session persistence across stateless tasks. It includes Docker containerization, Flyway database migrations, and Spring Session configuration with practical AWS CLI commands. Architecture uses least-privilege security principles with multi-AZ failover and encryption enabled.

• •End-to-end AWS infrastructure setup: ALB → ECS Fargate → RDS + ElastiCache with security group isolation
• •Externalized session store in Redis solves Fargate's stateless task restart problem for Java applications
• •Production-ready code examples: Dockerfile, Spring config, Flyway migrations, AWS CLI commands for automated setup

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