Releasing the Monolith On a Daily Basis
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Vincent Kok, a Development Manager at Atlassian, discusses the challenges and solutions in transitioning from a monolithic architecture to a microservices approach. Key issues addressed include complexity, ownership, testing, and release processes, alongside strategies to improve team culture and efficiency. The focus is on creating a sustainable development environment that fosters quick wins and data-driven decision-making.
Releasing the Monolith On a Daily Basis
- 1. VINCENT KOK • DEVELOPMENT MANAGER • ATLASSIAN • @VINCENTKOK Releasing the Monolith On a Daily Basis
- 2. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Monolith https://flic.kr/p/nA4S49
- 3. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Cool stories
- 5. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Got issues? https://flic.kr/p/fSopv4
- 6. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Journey https://flic.kr/p/8WQutt
- 7. CONFLUENCE PIPELINE MICROSERVICE ENVY 4 PROBLEMS Agenda CULTURE
- 8. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Confluence Pipeline https://flic.kr/p/jus4Bt
- 9. Nr of daily master builds 286
- 11. Nr of build agents 800
- 12. Flakes NaN
- 13. Size of Pipeline team 3
- 14. Confluence Pipeline ReleaseInner Outer Publish DeployA1 A2
- 15. True story Publish Deploy ReleaseInner Outer A1 A2 A1 A2 Manual release branch Development Env
- 16. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Not Great https://flic.kr/p/7D1D1N
- 17. < 1 hour
- 18. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Culture https://flic.kr/p/DsetEn
- 20. GreenDex
- 21. GreenDex
- 22. ResultsBeliefsExperience Actions The Oz Principle The way you’ve been shaped Beliefs are based on your experience You take actions based on your beliefs The outcome of our actions
- 23. Clear goal Early results Momentum Theory in real life
- 24. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Microservice Envy https://flic.kr/p/b7ak8e
- 25. Smaller Clear ownership Independent Lifecycle Microservice traits
- 26. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Monolith https://flic.kr/p/nA4S49
- 27. < 1 hour
- 28. < 1 day
- 30. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace #1: Complexity https://flic.kr/p/cFM3cd
- 31. Show me complexity Outer A1 A2 A1 A2 Manual release branch Development Env
- 32. Manual tasks Hard to understand Inconsistent feedback Impact
- 33. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Fix the model https://flic.kr/p/8ykpkW
- 36. Inner loop Build times Build stability Iterate
- 37. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace #2: Ownership https://flic.kr/p/bfRuoX
- 38. Getting the model wrong
- 39. Fire fighting Broken windows No improvements Impact
- 40. Dev Speed Feedback loop MTTR Impact
- 41. Ownership Development Teams Sustainable environment Site Reliability Engineering Pipeline
- 42. Early result Move the needle Measure everything Visibility Create awareness in the wider team Gather data to allow data driven decisions and prioritisation Focus on quick wins to move the needle
- 43. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Sustainable System https://flic.kr/p/awVLLs
- 44. Define rules Shared Ownership Enforce by automation Iterate
- 45. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace #3: Testing https://flic.kr/p/cBbxuQ
- 46. Unit Service UI
- 47. Unit Service UI
- 49. The impact of flakes Broken windows Culture Build times Due to restarts build times get out of control really quickly Builds will go red people will start to ignore this; Culture of green out of the window It starts with one, many will follow soon
- 50. Retries as a pain killer Automatic retries to relieve some pain. Remember this is a workaround Early result
- 51. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Fix the root cause https://flic.kr/p/J44Nm
- 52. Iterate Test strategy Flake policy
- 55. Fix or RemoveIssueDetect Ignore Flake policy
- 56. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Deleting tests, seriously? https://flic.kr/p/8BYXV4
- 57. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace #4: Releases https://flic.kr/p/91MFkh
- 58. Release cycle
- 59. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Congestion https://flic.kr/p/bRgBZP
- 60. Dogfooding becomes hard Big bangEnds at master Cancellations Impact
- 61. For once a free lunch Fork and Join solved most of our problems already Early result
- 62. Iterate Reduce build times Fix dogfooding
- 63. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Dogfooding https://flic.kr/p/dxpLTm
- 64. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Feedback https://flic.kr/p/dxaAdk
- 65. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Soak time https://flic.kr/p/fmfG2q
- 66. Decouple code and features Merge often One process Feature flags
- 67. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace How did the journey end? https://flic.kr/p/8WQutt
- 69. Clear goal Early results Momentum Changing beliefs
- 70. • Big cool statistic • 2,56 9 • Add-Ons in Marketplace Sustainable System https://flic.kr/p/awVLLs
- 72. Thank you! VINCENT KOK • DEVELOPMENT MANAGER • ATLASSIAN • @VINCENTKOK