Building Composable Services

Transcript

1. Building Composable Services Noah Kantrowitz
2. What? Why? How? Perils? Press Start
3. What? World 1-1
4. What is a Function?
5. f(x, y) = z
6. What is Idempotence?
7. f(x) = f(f(x))
8. What is Composable?
9. f(x) g(x) f(g(x))
10. req_user(x) user_id(x) user_id(req_user(x))
11. post('http://login') get('http://search')
12. Why? World 1-2
13. Availability
14. Scaling
15. Testing
16. Logistics
17. How? World 1-3
18. Frameworks Storage Rich Data Discovery Resilience Containers Level Up Select a Skill
19. µ-frameworks
20. Flask (Python) Sinatra (Ruby) Express (JavaScript)
21. ZeroMQ nanomsg ProtoBufs Cap'nProto
22. Data Storage (aka state)
23. AP Database
24. Cache is the enemy
25. Rich Data {id: me, cart: http...}
26. Hypermedia APIs
27. Service Discovery
28. Self-Organization
29. DNS nslookup('login')
30. ZooKeeper CP Database
31. Etcd Serf Consul Archaius
32. Resilience
33. Timeouts Idempotent Retries
34. post('chpw', nonce: 314)
35. Any service can be down
36. Async Messaging Queues
37. AMQP Kafka
38. Containers
39. Less RAM Less Problems
40. LXC Jails Zones Docker/Mesos
41. Security Isolation
42. Immutable Deployment
43. Logical Boundaries
44. Perils? World 1-4
45. Cascade Failures
46. Poor Visibility
47. Health & Metrics Central Logging Dashboards
48. Complex Deployments
49. Minimalist Self-organizing Fault-tolerant
50. Thank You
51. Noah Kantrowitz @kantrn coderanger.net Questions?