Continues Integration
- 1. Continues Integration Johan Aludden Twitter: johanaludden Mail: me@johanaludden.com Blog: johanaludden.com/weblog
- 2. What is Continues Integration? • Compile continuously • Test continuously • Prepare installation continuously • Measure quality continuously • Create documentation continuously 2
- 3. Components • Developers • Version Control Repository • CI server • Build script • Feedback • Integration Build Machine 3
- 4. Developers • Makes Changes to code • Runs a private Build • Commits changes 4
- 5. Version Control Repository • Central point of truth • Good Practice • History • CVS, SVN, Perforce, Git 5
- 6. CI server • Checks for changes • Retrieves changes • Runs build script(s) • Dashboard 6
- 7. Build Script • Automated • Complete • Launched from Command line 7
- 8. Feedback • Email • Instant messaging • SMS • RSS • Sounds • Monitor 8
- 9. Integration Build Machine • Dedicated • The reference 9
- 10. Benefits • Risk reduction • Less repetition • Generate Deployable Software • Increase Visibility • More Confidence 10
- 11. Excuses • Increasing maintenance • Too much change • Frequently failed builds • Additional cost • Should already be made 11
- 12. First steps • Centralized repository • Compile code • Package binaries • Add testing • Add inspections 12
- 13. Common Problems • Long build time • Frequently failed builds • To much information • Many target platforms 13
- 14. Long build time • Make it faster • Split and run in Parallell • Split and run in Sequence 14
- 15. Frequently failed builds • Are all committed? • Can the devs run on local machine? • Code to fragile? • Tests to fragile? 15
- 16. To much information • Is all information necessary • What information can be removed • Multiple source of information • Pull not push • Visualize information 16
- 17. Many target platforms • One CI server per platform • Compile code • Package binaries 17
- 18. Pipelines • Jobs – Runs in Parallell • Stages – Runs in sequence – contains 1 or more jobs 18
- 19. Pipeline 19
- 20. Pipeline Stage 19
- 21. Pipeline Stage Job Job 19
- 22. Pipeline Stage Stage Job Job Job Job 19
- 23. Pipeline Stage Stage Stage Job Job Job Job Job 19
- 24. Pipeline Stage Stage Stage Job Job Job Job Job 19
- 25. Pipeline Stage Stage Stage Job Job Job Job Job 19
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- 29. Pipeline Stage Stage Stage Job Job Job Job Job 19
- 30. Pipeline Stage Stage Stage Job Job Job Job Job 19
- 31. Pipeline Stage Stage Stage Job Job Job Job Job 19
- 32. Pipeline Stage Stage Stage Job Job Job Job Job 19
- 33. Pipeline Stage Stage Stage Job Job Job Job Job 20
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- 39. Pipeline Stage Stage Stage Job Job Job Job Job 20
- 40. Pipeline Stage Stage Stage Job Job Job Job Job 20
- 41. Pipeline Stage Stage Stage Job Job Job Job Job 20
- 42. CI servers • CruiseControl • Hudson • Cruise • Bamboo 21
- 43. Links • Martin Fowler (http://martinfowler.com/articles/continuousIntegration.html) • Book (http://www.amazon.com/Continuous-Integration-Improving-Software- Reducing/dp/0321336380) • CruiseControl (http://cruisecontrol.sourceforge.net/) • Hudson (https://hudson.dev.java.net/) • WikiPedia (http://en.wikipedia.org/wiki/Continuous_integration/) 22
- 44. Questions? 23