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Continuous Deployment Demystified
The document discusses the principles and benefits of continuous deployment (CD) in software development, highlighting its role in promoting continuous improvement, reducing stress during releases, and enhancing user satisfaction through regular updates. It emphasizes the importance of zero downtime during deployments and explores how CD can be applied in various contexts, including e-learning. The content also addresses the cultural shifts within teams that adopt CD practices, such as increased collaboration and shared ownership of the development process.
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Continuous Deployment Demystified
- 1. Continuous Deployment Embrace Continuous Improvement Naresh Jain @nashjain naresh@agilefaqs.com http://blogs.agilefaqs.com Licensed Under Creative Commons by Naresh Jain 1
- 2. Licensed Under CreativeCommons by Naresh Jain 2
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- 4. Continuous Deployment Licensed Under Creative Commons by Naresh Jain 3
- 5. But.... Licensed Under CreativeCommons by Naresh Jain 4
- 6. re nt! diffe re us? ? Too e a or W F h ere mu em ch probl Ch re a aos he Wh o? W ? Is t hen ? ROI? Pro duc tivit y? Licensed Under Creative Commons by Naresh Jain 4
- 7. Me Licensed Under CreativeCommons by Naresh Jain 5
- 8. Licensed Under CreativeCommons by Naresh Jain 6
- 9. Mumbai Licensed Under CreativeCommons by Naresh Jain 7
- 10. AgilePhilly Tech Talks! Licensed Under Creative Commons by Naresh Jain 8
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- 17. Licensed Under CreativeCommons by Naresh Jain 15
- 18. Back in theStone-age Licensed Under Creative Commons by Naresh Jain 16
- 19. Happiness/Excitement Time/Money/Opportunity Cost Licensed Under Creative Commons by Naresh Jain 17
- 20. Plan Happiness/Excitement Time/Money/Opportunity Cost Licensed Under Creative Commons by Naresh Jain 17
- 21. Plan Design Happiness/Excitement Time/Money/Opportunity Cost Licensed Under Creative Commons by Naresh Jain 17
- 22. Plan Design Happiness/Excitement Distribute Time/Money/Opportunity Cost Licensed Under Creative Commons by Naresh Jain 17
- 23. Plan Design Happiness/Excitement Distribute Work in Isolation Time/Money/Opportunity Cost Licensed Under Creative Commons by Naresh Jain 17
- 24. Plan Design Happiness/Excitement Distribute Work in Isolation Integrate Time/Money/Opportunity Cost Licensed Under Creative Commons by Naresh Jain 17
- 25. Last Minute IntegrationSurprises Licensed Under Creative Commons by Naresh Jain 18
- 26. BAD things werevisible too Late... Licensed Under Creative Commons by Naresh Jain 19
- 27. Birth of CI LicensedUnder Creative Commons by Naresh Jain 20
- 28. Licensed Under CreativeCommons by Naresh Jain 21
- 29. CI Helped UsLearn That... Life can Suck a lot Less! Licensed Under Creative Commons by Naresh Jain 22
- 30. CI Helped UsLearn That... Life can Suck a lot Less! Collaboration Feedback Quality Delivery Time Wastage Licensed Under Creative Commons by Naresh Jain 22
- 31. If people areafraid to check-in frequently... your CI process is NOT working. Licensed Under Creative Commons by Naresh Jain 23
- 32. We already doCI. What’s next? Licensed Under Creative Commons by Naresh Jain 24
- 33. Multi-Stage CI Process Scaling CI using Build Promotion Licensed Under Creative Commons by Naresh Jain 25
- 34. Licensed Under CreativeCommons by Naresh Jain 26
- 35. While the Lean-Start-up Community They tried something quite disruptive... Licensed Under Creative Commons by Naresh Jain 27
- 36. Continuous Deployment (CD) Licensed Under Creative Commons by Naresh Jain 28
- 37. CD is quitenatural for companies delivering content via Web Licensed Under Creative Commons by Naresh Jain 29
- 38. Freeset - InBusiness for Freedom Licensed Under Creative Commons by Naresh Jain 30
- 39. Stage 1 Static Files DB freesetglobal.com s Vie te da w Up Freeset - In Business for Freedom Licensed Under Creative Commons by Naresh Jain 30
- 40. Stage 1 Stage 2 Static Static Static Files Files Files DB DB DB Structural Changes Sync freesetglobal.com dev.freesetglobal.com freesetglobal.com s Updates Vie te View da w Up ck li -C oy le pl ng De Si Freeset - In Business for Freedom Licensed Under Creative Commons by Naresh Jain 30
- 41. Freeset Demo LicensedUnder Creative Commons by Naresh Jain 31
- 42. Benefits of CD Licensed Under Creative Commons by Naresh Jain 32
- 43. Automation removes Errors Licensed Under Creative Commons by Naresh Jain 33
- 44. Eliminates stressful release crunch Licensed Under Creative Commons by Naresh Jain 34
- 45. Users continuously see improvements Licensed Under Creative Commons by Naresh Jain 35
- 46. Reducing batch size helpsdrive out waste Licensed Under Creative Commons by Naresh Jain 36
- 47. Faster responses to customer issues Licensed Under Creative Commons by Naresh Jain 37
- 48. A/B testing iseasier due to less release overhead Licensed Under Creative Commons by Naresh Jain 38
- 49. Encourages experimenting with new ideas Licensed Under Creative Commons by Naresh Jain 39
- 50. Allows for fine-grained monitoringof changes Licensed Under Creative Commons by Naresh Jain 40
- 51. Provides satisfaction from seeingconstant progress Licensed Under Creative Commons by Naresh Jain 41
- 52. Can we embraceCD for eLearning? Rich Multi-Media Content Video, Screencasts, Quizzes, Images, Personas, etc. Programming Exercises Java, C#, C++, C & Python Mac OS, Windows, Linux, Solaris Different IDE Plugins Server side code analysis (Java, C#, C++, C & Python) Licensed Under Creative Commons by Naresh Jain 42
- 53. This is whatwe did... Licensed Under Creative Commons by Naresh Jain 43
- 54. Deploy build toinactive production servers Licensed Under Creative Commons by Naresh Jain 44
- 55. Inactive joins thecluster Licensed Under Creative Commons by Naresh Jain 45
- 56. Delivery tests verify inactive release Licensed Under Creative Commons by Naresh Jain 46
- 57. Reverse proxy swaps inactive with active Licensed Under Creative Commons by Naresh Jain 47
- 58. Licensed Under CreativeCommons by Naresh Jain 48
- 59. CD Requires ZeroDowntime Licensed Under Creative Commons by Naresh Jain 49
- 60. Zero Downtime Requires Performingupdates without interrupting users is essential for Zero Downtime deployments. • The application code • Database schema • Data files • Web Server • Application Server or Servlet Container • Database Server • OS upgrades and patches Licensed Under Creative Commons by Naresh Jain 50
- 61. What about DB Upgrades? Will Continuous Deployment work? Licensed Under Creative Commons by Naresh Jain 51
- 62. Hibernate • hbm2ddl.auto =update • Rarely we need to go in and update DB manually Licensed Under Creative Commons by Naresh Jain 52
- 63. Zero-downtime DB Updates 012_rename_login_id_to_user_name 012_add_user_name_column 02_remove_login_id_column expansion contraction Src: Owen Rogers http://exortech.com/blog/ Licensed Under Creative Commons by Naresh Jain 53
- 64. Zero-downtime DB Updates Src: Owen Rogers http://exortech.com/blog/ Licensed Under Creative Commons by Naresh Jain 54
- 65. Zero-downtime DB Updates • expansion Src: Owen Rogers http://exortech.com/blog/ Licensed Under Creative Commons by Naresh Jain 54
- 66. Zero-downtime DB Updates • expansion • preserves backwards compatibility Src: Owen Rogers http://exortech.com/blog/ Licensed Under Creative Commons by Naresh Jain 54
- 67. Zero-downtime DB Updates • expansion • preserves backwards compatibility • contract Src: Owen Rogers http://exortech.com/blog/ Licensed Under Creative Commons by Naresh Jain 54
- 68. Zero-downtime DB Updates • expansion • preserves backwards compatibility • contract • clean up Src: Owen Rogers http://exortech.com/blog/ Licensed Under Creative Commons by Naresh Jain 54
- 69. Industrial Logic’s eLearning CDDemo Licensed Under Creative Commons by Naresh Jain 55
- 70. Eventually... Licensed Under CreativeCommons by Naresh Jain 56
- 71. CD’s Impact on Team Culture Licensed Under Creative Commons by Naresh Jain 57
- 72. Encourage Evolutionary Designand Continuous Improvement culture Licensed Under Creative Commons by Naresh Jain 58
- 73. Breaks work intomicro-pieces, thereby enabling micro-deliveries Licensed Under Creative Commons by Naresh Jain 59
- 74. Limited Work InProgress Licensed Under Creative Commons by Naresh Jain 60
- 75. Knows when tohide or reveal work in progress Licensed Under Creative Commons by Naresh Jain 61
- 76. Team takes sharedownership of the entire software development lifecycle Licensed Under Creative Commons by Naresh Jain 62
- 77. The product isin a always-working-state No developer is blocked because they can't get stable code Licensed Under Creative Commons by Naresh Jain 63
- 78. Stop the LineCulture Team catches issues at the source and avoid last minute integration and deployment nightmares Licensed Under Creative Commons by Naresh Jain 64
- 79. Team crave forrapid feedback Licensed Under Creative Commons by Naresh Jain 65
- 80. Complete Traceability Version Control,Project & Requirements Managements tool, Bug Tracking and Build system are completely integrated Licensed Under Creative Commons by Naresh Jain 66
- 81. Questions? Naresh Jain @nashjain naresh@agilefaqs.com http://blogs.agilefaqs.com Licensed Under Creative Commons by Naresh Jain 67