Continuous Delivery

Transcript

1. Łukasz Szydło lukasz.szydlo@skillcraft.eu Continuous Delivery
2. Survey Quick survey
3. What is CD? Our highest priority is to satisfy the customer through early and
 continuous delivery
 of valuable software.
4. Technics - automated testing - continuous integration - continuous inspection - continuous deployment
5. Technics - automated testing - continuous integration - continuous inspection - continuous deployment
6. Definition Release = Deploy
7. Definition Release = Deploy Release - make feature accessible to users
8. Definition Release = Deploy Release - make feature accessible to users Deploy - put code artifact on server
9. Definition Release != Deploy Release - make feature accessible to users Deploy - put code artifact on server
10. How to release it? Release
11. Branches slow you down { “Source” : “http://www.whitewolfpack.com/2012/10/hapless-lion-cubs-clumsy-bid-to-climb.html”}
12. Branches slow you down { “Source” : “http://nvie.com/posts/a-successful-git-branching-model/”}
13. Branches slow you down { “Source” : “http://www.uni-2.co.uk/latest_news/7-best-things-to-get-your-hand-stuck-in/”}
14. Introducing changes Branches as Code
15. Introducing changes Feature Switches
16. Release
17. Introducing changes Branching by abstraction
18. Introducing changes class DefaultPurchaseService implements PurchaseService { public Money calculateRabat(OrderNumber orderNo){ Order order = ordersRepository.load(orderNo); RabatPolicy rabatPolicy = rabatPolicyFactory.get(); Money rabatValue = order.calculateRabat(rabatPolicy); return rabatValue; } public void addProduct(OrderNumber orderNo, ProductNumber productNo, Quantity quantity){ Product product = productsRepository.load(productNo); Order order = ordersRepository.load(orderNo); order.addProduct(product, quantity,); ordersRepo.save(order); } }
19. Introducing changes class DefaultRabatPolicyFactory implements RabatPolicyFactory { Map<Name, RabatPolicy> map = newMap() .put(“default”, new DefRP()) .put(“newShiny”, new NewRP()) public RabatPolicy create(){ if(featureSwitcher.isNewRabatPolicyActive()) { return map.get(newShiny); } else { return map.get(default); } } }
20. Definition Safety Net Automated tests Application monitoring
21. Automatic testing How much coverage is enought?
22. Automatic testing Bugs - user can’t complete some action - user can complete action wrong
23. Automatic testing Input Output Application Logic
24. Automatic testing Web DB Application Logic
25. Automatic testing Web DB Application Logic
26. Architecture Web DB Application Logic
27. Architecture Web DB Application Logic Security Config External … …
28. Architecture Do you remember PC? { “Source” : “https://st-julians-itgs.wikispaces.com/file/view/Ports.png/168851031/Ports.png”}
29. Architecture Web DB Application Logic Security Config External … …
30. Ports&Adapters/Hexagonal/Onion Architecture { “Source” : “http://www.natpryce.com/articles/000772.html”}
31. About me Programmer/Architect/Consultant Writes code mostly in Java Specializes in DDD, CD, BDD Trainer at Bottega IT Solutions Branch free since 2010 (with small break) lukasz.szydlo@skillcraft.eu
32. Q&A Q&A