Monolith to Microservices

on YouTube ↗30m

" summary

ADP runs a huge HCM platform with ~490,000 cloud clients, ~35M active users and ~5M logins a day (peak ~19,000/s), and is converting a single organized monolith to microservices by incremental strangling the monolith and lift‑and‑shift extraction. Engineering moves to separate repos, client libraries, contract testing and CI that produces immutable containers. Tooling includes Docker, Nginx, Consul, Swagger, Vagrant, Jenkins, AWS/GCE/OpenStack and orchestration like Swarm/Mesos/Kubernetes. Outcome so far: ~20 services now, >60 planned; guiding principles are promises and tests.

AI-written summary · about

" chapters (14)

1. 0:00Introduction
2. 0:34Agenda
3. 2:02ATP at Scale
4. 4:56Organized Monolith
5. 6:14The Bad
6. 8:08Conways Law
7. 9:10Stangulation
8. 16:19Promises
9. 19:10Lift Shift
10. 21:38Microservice Quantification
11. 22:36Clients
12. 24:19Testing
13. 25:42Enabling Microservices
14. 28:39Conclusion

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