Modularise a Laravel Monolith Application

Transcript

1. MUHAMMAD ZESHAN KHATTAK https://pinkary.com/@zeshan77
2. Modularising the Monolith LaravelLive Pakistan 2024
3. SHIP THE PRODUCT TO THE MARKET
4. BENEFITS OF MONOLITH • Single repository • Single CI/CD pipeline • Single set of infrastructure • Easy to handle DB transactions
5. BIG BALL OF MUD • Tight coupling between functionalities • No domain boundaries • All code is globally accessible • Need to understand the entire codebase
6. MICROSERVICES User Interface Microservice Microservice Microservice HTTP HTTP
7. BENEFITS OF MICROSERVICES • Clear boundaries between services • Deployed independently • Can be scaled independently • Freedom of tech stack
8. CHALLENGES OF MICROSERVICES • Multiple repositories • Multiple CI/CD pipelines • Network overhead • Complex cross-service transactions
9. TECHNICAL DECISIONS ARE ALWAYS TRADE-OFF
10. OUR GOALS • Maximise teams’ productivity • Scalable architecture
11. OUR APPROACH • Modularise the monolith • De f ine domain boundaries
12. MODULAR MONOLITH Contracts Implementation Tests Contracts Implementation Tests Contracts Implementation Tests Inventory module Order module Payment module
13. INCREMENTAL MIGRATION MICROSERVICES Contracts Implementation Tests Contracts Implementation Tests Contracts Implementation Tests Inventory service Order module Payment module
14. MICROSERVICES ARE EXPENSIVE TO CHANGE User Interface Microservice Microservice Microservice HTTP HTTP
15. MODULAR MONOLITH IS EASIER TO CHANGE Contracts Implementation Tests Contracts Implementation Tests Contracts Implementation Tests Inventory module Order module Payment module
16. MODULES & TEAM STRUCTURE Inventory Module Order Module Payment Module Shipping Module Auth Module
17. DEFAULT STRUCTURE
18. MODULAR STRUCTURE
20. COMMUNICATION BETWEEN MODULE
21. COMMUNICATION THROUGH CONTRACT Module A Module B Downstream Upstream Contract Implementation
22. CROSS-MODULE FOREIGN KEY LEADS TO A TIGHT COUPLING Order module Inventory module Products Cart Items product_id id
23. HOW CAN WE ENFORCE DOMAIN BOUNDARIES?
24. STATIC ANALYSIS • Deptrac • De f ine layers based on PHP classes • De f ine rulesets on layers access • Detect violation of the rulesets • Visualize dependency graph
25. THANK YOU https://pinkary.com/@zeshan77