http://www.oscon.com/oscon2012/public/schedule/detail/23968

1. Open Source in
Google Corporate Engineering
Justin McWilliams

2. Corporate IT
Workstations & WiFi
Video Conferencing &
Telecommunication
VPN & Remote Access
Helpdesk / Tech Support
Calendar & Productivity
Servers & Networking Email
Mobile Devices

3. Google CorpEng Challenges

4. CorpEng not only runs, but develops most solutions!
● Video conferencing, complete with fleet management
● Mac OS X software deployment client and server
● Full disk encryption recovery key escrow solution
● Binary whitelist approval workflow system
● Employee performance review and promotion system
● Interview scheduling, feedback, and hiring decision solution
● Financial and expense reporting tools
● Compensation review/display
● International payroll calculation
● Much, much more
Most of the above are built on Google App Engine, and some are open sourced.

5. Why does CorpEng Open Source?
Why does Google Open Source?
Why does anyone Open Source?

6. "Open" more than just "Source"

7. OSS widely used within CorpEng
● Need a high-performance, distributed in-memory object caching system?
○ Memcached
● Java date and time classes causing pain?
○ JodaTime
● Want a library or framework to help with testing?
○ Mockito, EasyMock, Machinist, UnitRecord, FlexMock, pymox
● Developing a web application?
○ Django, GWT, Spring, Struts, Closure, jQuery, AngularJS, ...
● Can't write in binary?
○ Java, Python, Ruby (on Rails), Go, etc.

8. What's interesting about these?
Gin Keyczar
AngularJS
Guice ipaddr-py
Closure
GSON oauth2client
FlexMock
GWT pymox

9. Example OSS use within CorpEng
● AutoTest
○ Automated testing and releasing of our customized Ubuntu distribution
● CodeMirror (JavaScript)
○ Used to build an internal application dev tool for a browser-based IDE
■ Not Google Collide, which also uses CodeMirror
● FreeSWITCH
○ Used to build our custom call center telephony routing system
● Munki & Puppet
○ Mac OS X systems administration tools

11. + =
Simian

12. Cauliflower Vest

13. CorpEng Open Source Solutions
Simian
Software mgmt for one of the largest Mac deployments in the world
Cauliflower Vest
Enterprise-class FileVault 2 recovery key escrow solution
Ganeti
Cluster-based virtualization management software
CloudCourse
LMS for enterprise course scheduling and management

14. CorpEng OSS Releases / Contributions
GORD
Platform agnostic RPC daemon for interaction with Microsoft SMS/SCCM
Compliance Management
Automated maintenance, analytics and reporting of compliance data
AppReduce*
Enterprise software license tracking and employee transparency tool
Contributions to non-Google OSS:
Firebug, FreeJ, Objectify, PyActiveResource, PyCups, Rails, ..., Debian, Ubuntu, ...

15. CorpEng Open Source Release Process
Akin to Android, not Chromium; develop internally then release large dumps, because....

16. Links! Questions?
CorpEng Open Source Projects
● Simian http://code.google.com/p/simian
○ Munki http://code.google.com/p/munki
● Cauliflower Vest http://code.google.com/p/cauliflowervest
● Ganeti http://code.google.com/p/ganeti
● Compliance Management http://code.google.com/p/compliance-management
Misc
● Make Open Easy http://code.google.com/p/make-open-easy
CorpEng Videos & Presentations:
● Google on Google, I/O http://goo.gl/ovJ2D
● Coding For Cloud, I/O http://goo.gl/nt6Ox
● Corp Apps on AppEngine, I/O http://goo.gl/m1XzN
● Life@Google IT Teams http://goo.gl/7cYSf