A presentation on continues integrations

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
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3. Components
• Developers
• Version Control Repository
• CI server
• Build script
• Feedback
• Integration Build Machine
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4. Developers
• Makes Changes to code
• Runs a private Build
• Commits changes
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5. Version Control Repository
• Central point of truth
• Good Practice
• History
• CVS, SVN, Perforce, Git
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6. CI server
• Checks for changes
• Retrieves changes
• Runs build script(s)
• Dashboard
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7. Build Script
• Automated
• Complete
• Launched from Command line
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8. Feedback
• Email
• Instant messaging
• SMS
• RSS
• Sounds
• Monitor
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9. Integration Build Machine
• Dedicated
• The reference
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10. Benefits
• Risk reduction
• Less repetition
• Generate Deployable Software
• Increase Visibility
• More Confidence
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11. Excuses
• Increasing maintenance
• Too much change
• Frequently failed builds
• Additional cost
• Should already be made
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12. First steps
• Centralized repository
• Compile code
• Package binaries
• Add testing
• Add inspections
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13. Common Problems
• Long build time
• Frequently failed builds
• To much information
• Many target platforms
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14. Long build time
• Make it faster
• Split and run in Parallell
• Split and run in Sequence
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15. Frequently failed builds
• Are all committed?
• Can the devs run on local machine?
• Code to fragile?
• Tests to fragile?
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16. To much information
• Is all information necessary
• What information can be removed
• Multiple source of information
• Pull not push
• Visualize information
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17. Many target platforms
• One CI server per platform
• Compile code
• Package binaries
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18. Pipelines
• Jobs
– Runs in Parallell
• Stages
– Runs in sequence
– contains 1 or more jobs
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19. Pipeline
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20. Pipeline
Stage
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21. Pipeline
Stage
Job
Job
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22. Pipeline
Stage Stage
Job Job
Job Job
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23. Pipeline
Stage Stage Stage
Job Job Job
Job Job
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24. Pipeline
Stage Stage Stage
Job Job Job
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25. Pipeline
Stage Stage Stage
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26. Pipeline
Stage Stage Stage
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27. Pipeline
Stage Stage Stage
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28. Pipeline
Stage Stage Stage
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29. Pipeline
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30. Pipeline
Stage Stage Stage
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31. Pipeline
Stage Stage Stage
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32. Pipeline
Stage Stage Stage
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33. Pipeline
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34. Pipeline
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35. Pipeline
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36. Pipeline
Stage Stage Stage
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37. Pipeline
Stage Stage Stage
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38. Pipeline
Stage Stage Stage
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39. Pipeline
Stage Stage Stage
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40. Pipeline
Stage Stage Stage
Job Job Job
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41. Pipeline
Stage Stage Stage
Job Job Job
Job Job
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42. CI servers
• CruiseControl
• Hudson
• Cruise
• Bamboo
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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/)
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44. Questions?
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