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Understanding the CloudStack
Release Process
David Nalley
@ke4qqq
ke4qqq@apache.org
#whoami
• Director, The Apache Software Foundation
• VP Infra, The Apache Software Foundation
• PMC Member, Apache CloudStack
• Employed by Citrix
– Work in the Open Source Business Office
– Originally at Cloud.com
Releases
• Releases provide end users with usable
software
• Releases are official actions of the Foundation
• Aside from a vote, the release process is left
up to the project.
Releases – what we’ve done
• We ‘strive’ for a 4 months release cycle.
– We’ve never maintained schedule
• We have multiple ‘phases’ for the release
cycle.
Phase 1: Feature Development
• Features developed on branches and merged
when ready in this phase.
Phase 2: Feature Freeze
• No new functionality
• Only bugfixes committed
Phase 3: Code freeze
• When all testing is supposed to occur
• Stabilize the code base in preparation for
release
Phase 4: Release candidates
• This is when most testing seems to occur
• We end up with many release candidates
– The churn causes much frustration
The result
• We ‘generally’ have acceptable releases, but
sometimes they are delayed many months.
• We exhaust our community with repeated test
cycles.
Where we want to move
(Disclaimer: I am only one person – my views
may not be what we end up with. I do not have
fiat authority)
Where we want to move
• Reliance on automated testing.
• Much more rigid acceptance standards for
code
– Require automated test coverage for new features
– Require that problems be fixed and have tests
Where we want to move
• Gated commits – based on automated testing.
(passing tests as a requirement for each
commit)
Faster
• We want to release more frequently
• Smaller changesets – minimize the effect of
change on quality
Questions?
Join us
• dev@cloudstack.apache.org
• @cloudstack on Twitter
• #cloudstack on irc.freenode.net

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Understanding the CloudStack Release Process

  • 1. Understanding the CloudStack Release Process David Nalley @ke4qqq ke4qqq@apache.org
  • 2. #whoami • Director, The Apache Software Foundation • VP Infra, The Apache Software Foundation • PMC Member, Apache CloudStack • Employed by Citrix – Work in the Open Source Business Office – Originally at Cloud.com
  • 3. Releases • Releases provide end users with usable software • Releases are official actions of the Foundation • Aside from a vote, the release process is left up to the project.
  • 4. Releases – what we’ve done • We ‘strive’ for a 4 months release cycle. – We’ve never maintained schedule • We have multiple ‘phases’ for the release cycle.
  • 5. Phase 1: Feature Development • Features developed on branches and merged when ready in this phase.
  • 6. Phase 2: Feature Freeze • No new functionality • Only bugfixes committed
  • 7. Phase 3: Code freeze • When all testing is supposed to occur • Stabilize the code base in preparation for release
  • 8. Phase 4: Release candidates • This is when most testing seems to occur • We end up with many release candidates – The churn causes much frustration
  • 9. The result • We ‘generally’ have acceptable releases, but sometimes they are delayed many months. • We exhaust our community with repeated test cycles.
  • 10. Where we want to move (Disclaimer: I am only one person – my views may not be what we end up with. I do not have fiat authority)
  • 11. Where we want to move • Reliance on automated testing. • Much more rigid acceptance standards for code – Require automated test coverage for new features – Require that problems be fixed and have tests
  • 12. Where we want to move • Gated commits – based on automated testing. (passing tests as a requirement for each commit)
  • 13. Faster • We want to release more frequently • Smaller changesets – minimize the effect of change on quality
  • 15. Join us • dev@cloudstack.apache.org • @cloudstack on Twitter • #cloudstack on irc.freenode.net