Journey from monolith to microservices on AWS
summary
Demonstrates a working migration: a Spring Boot Java monolith on EC2 with MySQL gets the basket functionality extracted, routed by a proxy to serverless microservices built with Lambda + DynamoDB, using AWS Migration Hub Refactor Spaces to create the API Gateway VPC link, transit gateway and NLB fabric. Applies the strangler fig pattern iteratively, keeps existing REST contracts, follows a multi-account isolation strategy to minimize blast radius, and shows live routing of basket URIs to the new services.
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chapters (19)
- 0:00Introduction
- 1:28Move from monolith to microservices
- 3:37Overgrown monolith challenges
- 5:02Microservices and benefits
- 6:44Refactoring for business value
- 7:47Demo setup: Unicorn Shop monolith
- 9:36Strangler fig pattern
- 11:46Seamlessly chipping away at the monolith
- 14:11AWS Migration Hub Refactor Spaces
- 16:20Multi-account strategy benefits
- 18:31Shopping cart with Lambda & DynamoDB
- 21:18App modernization workshop
- 22:44Refactor Spaces environment setup
- 24:29Monolith service configuration
- 25:53Add shopping cart microservice
- 27:14URI and HTTP routing
- 28:38Iterative refactoring future
- 29:00Live demo: Unicorn Shop
- 29:43Summary
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