Adopting Continuous Delivery: Adjusting your Architecture
8 likes2,460 views
The document discusses the adoption of continuous delivery in software development and emphasizes the importance of architectural evolution, smaller teams, and effective communication within organizations. Key lessons include following Conway's Law, keeping components small and manageable, and evolving architectural designs to enhance adaptability. Various strategies and resources are provided to facilitate continuous delivery, including microservices and feature toggles.
Adopting Continuous Delivery: Adjusting your Architecture
- 1. Adopting Continuous Delivery Adjusting your Architecture RACHEL LAYCOCK http://thoughtworks.com @rachellaycock
- 2. Watch the video with slide synchronization on InfoQ.com! http://www.infoq.com/presentations /adopting-continuous-delivery InfoQ.com: News & Community Site • 750,000 unique visitors/month • Published in 4 languages (English, Chinese, Japanese and Brazilian Portuguese) • Post content from our QCon conferences • News 15-20 / week • Articles 3-4 / week • Presentations (videos) 12-15 / week • Interviews 2-3 / week • Books 1 / month
- 3. Presented at QCon San Francisco www.qconsf.com Purpose of QCon - to empower software development by facilitating the spread of knowledge and innovation Strategy - practitioner-driven conference designed for YOU: influencers of change and innovation in your teams - speakers and topics driving the evolution and innovation - connecting and catalyzing the influencers and innovators Highlights - attended by more than 12,000 delegates since 2007 - held in 9 cities worldwide
- 4. Continuous Delivery Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.
- 5. You can’t have Continuous Delivery
- 6. Once upon a time I was a happy developer...
- 7. I thought I knew what Continuous Delivery was
- 8. I was even doing it on my projects
- 10. ...a client wanted Continuous Delivery
- 11. ...and we said “sure”
- 12. ...but 3 months later they were still asking...
- 13. “Where is my Continuous Delivery?”
- 14. So what went wrong?
- 15. Their code base was huge and complex
- 16. I learned something from that...
- 17. ...something I will share with you
- 18. 1. Conway’s Law is THE LAW 2. Keep things small 3. Evolve your architecture
- 19. agile 101 "Agile" team Analysis + Design Centralized QA IT Operations Development Integration + QA Release and operation Testing + Showcase Customer Iteration 0 1 2 3 4 The "last mile"
- 20. continuous delivery Customer Delivery team Constant flow of new features into production software always production-ready releases tied to business needs, not operational constraints
- 21. releasing frequently feedback from users reduce risk of release John Allspaw: “Ops Metametrics” http://slidesha.re/dsSZIr
- 22. releasing frequently feedback from users reduce risk of release real project progress
- 23. CD is BIG! Organisational Alignment Release Management Architecture Quality Assurance Continuous Integration Configuration Management Data Management Environments & Deployment
- 24. Stuff that's hard to change
- 25. ?
- 26. 1. Conway’s Law is THE LAW
- 27. Conway's Law: "organisations which design systems ... are constrained to designs which are copies of the communication structures of these organisations"
- 28. Fred Brooks (mythical man-month): “Because the design that occurs first is almost never the best possible, the prevailing system concept may need to change. Therefore, flexibility of organisation is important to effective design.”
- 29. The wrong side of the law
- 31. Ball of Mud
- 32. Dependency Hell
- 33. dependencies Reports engine Framework Settlement engine CDS pricing library Pricing engine Portfolio management application
- 34. Brownfield
- 35. untangling
- 39. The law on your side
- 41. 2. Keep things small
- 42. What is a Micro Service? http://www.infoq.com/presentations/Micro-Services
- 45. Why we want them?
- 47. Communication
- 48. Monitoring
- 49. Testing
- 50. Scripting
- 52. 3. Evolve your architecture
- 53. Evolutionary Architecture & Emergent Design
- 54. Greenfield
- 55. Principles of Evolutionary Architecture 1. Last Responsible Moment 2. Architect for Evolvability 3. Postel’s Law 4. Architect for Testability 5. Conway’s Law
- 56. 1. Last Responsible Moment
- 57. 2. Architect for Evolvability
- 58. 3. Postel’s Law
- 59. 4. Architect for Testability
- 60. 5. Conway’s Law
- 61. 1. Conway’s Law is THE LAW 2. Keep things small 3. Evolve your architecture
- 63. Architect for Build, Run and Deploy
- 65. ?
- 66. Resources Books: • Continuous Delivery - Jez Humble, Dave Farley • Working Effectively with Legacy Code - Michael Feathers • Release It - Michael Nygard • Domain Driven Design - Eric Evans Articles/Blogs: • Branch by Abstraction - Jez Humble: http://continuousdelivery.com/2011/05/make-large-scale-changes-incrementally-with-branch-by-abstraction/ • Branch by Abstraction - Paul Hammant: http://paulhammant.com/blog/branch_by_abstraction.html/ • Feature Toggles - Martin Fowler: http://martinfowler.com/bliki/FeatureToggle.html • Evolutionary Architecture - Neal Ford: http://www.ibm.com/developerworks/views/java/libraryview.jsp? search_by=evolutionary+architecture+emergent+design: • Ball of Mud: http://www.laputan.org/mud/ • Deming - http://leanandkanban.wordpress.com/2011/07/15/demings-14-points/ • Coding Horror: http://www.codinghorror.com/blog/2007/11/the-big-ball-of-mud-and-other-architecturaldisasters.html • Who needs an architect: http://martinfowler.com/ieeeSoftware/whoNeedsArchitect.pdf • Evolutionary Architecture and Emergent Design: http://www.ibm.com/developerworks/java/library/j-eaed1/ index.html • Strangler Application: http://martinfowler.com/bliki/StranglerApplication.html • Micro services: http://www.infoq.com/presentations/Micro-Services
- 67. Watch the video with slide synchronization on InfoQ.com! http://www.infoq.com/presentations/adoptingcontinuous-delivery