OpenStack Infrastructure Team

Our job is to make sure the OpenStack developers can do their job.

OpenStack Code Review (and CI) Challenges

• Lots of individual projects
• All projects must work together
• Changes should never break the master
• Code should be syntactically clean
• Testing should be completely automated

What we're using

• Launchpad
• Git
• Gerrit
• Zuul*
• Gearman
• Jenkins (with jenkins-job-builder*, devstack-gate*)
• Nodepool*

* Started by the OpenStack Infrastructure team

Workflow

What we use it for

• All core OpenStack projects
• StackForge projects
• Documentation
• Systems Administration!

What we do

What we do (redux)

• Continuous Integration systems
• Cacti
• Logstash
• IRC Bots
• Etherpad
• Paste
• Planet
• Puppet Board
• Mailing Lists
• Various smaller web services
• Wiki

Everything we do is in public

• Anyone on the internet can look at our changes
• Anyone can sign up for a code review account
• Anyone can write code reviews

What Systems Adminstrators Check

• flake8 (pep 8 and pyflakes)
• puppet parser validate
• puppet-lint
• XML
• Alphabetized project files

Peer Review

• Multiple eyes on changes prior to merging
• Good infrastructure for developing new solutions (particularly for a distributed team)
• No special process to go through for commit access
• Trains us to be collaborative by default

Automated deployment!

• Change gets checked in
• ...Either puppet master gets updated and applies change
• ...Or vcsrepo module in puppet pulls in latest version of project

Can you really manage via git commits?

• Cacti to keep an eye on server usage
• Puppet board so you can watch your changes get applied (or not!)
• Thorough, specific documentation at http://ci.openstack.org

Limitations

• Sometimes you just need to log into a server
• More difficult for complicated migrations, upgrades
• Passwords need to be more privately managed

Questions

Contact

• Elizabeth Krumbach Joseph <lyz@princessleia.com>
• @pleia2 on Twitter

Openstack CI Resources

• http://ci.openstack.org

Slides linked on http://docs.openstack.org/infra/publications/