Andy Delcambre's RubyConf 2011 presentation Presentation Description: At Engine Yard, we release the main Engine Yard Cloud code base at least once a day, many times more often than that. Yet we still have a fairly rigorous testing and release process. We have simply automated and connected as much of the process as possible. This talk covers how we handle deployments, how it ties in with our continuous integration service, and how we automate and tie it all together. Recorded presentation: http://confreaks.net/videos/667-rubyconf2011-release-early-and-release-often-reducing-deployment-friction

1. RELEASE EARLY &
RELEASE OFTEN
Reducing Deployment Friction
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2. ANDY DELCAMBRE
It rhymes with “Welcome”
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3. @adelcambre
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5. Saturday, October 1, 11

6. REDUCING DEPLOYMENT
FRICTION
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7. REDUCING DEPLOYMENT
FRICTION
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8. REDUCING DEVELOPMENT
FRICTION
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10. STARTING A NEW TASK
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13. git checkout -b U-666
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14. git commit -m “[U-666] add unicorns”
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16. .............................
..*......**..................
.............................
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Finished in 10.809554 seconds
109 examples, 0 failures, 3
pending
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19. EyBot
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20. require 'ey/irc'
run EY::Irc::Receiver.new { |message|
case message.body
when /^ping$/
message.say(message.to,
”Hello World!”)
end
end
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26. CONTINUOUS INTEGRATION
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28. MASON
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30. git checkout master
git merge U-666
git push origin master
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31. MARK TICKET AS “MERGED”
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32. AUTO DEPLOY TO EDGE
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34. 404 DEPLOYS IN SEPTEMBER
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35. ~ 20 per week day
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36. 2-9 Production Deploys per Day
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37. EyBot: release awsm production
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38. Ensure master is green
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39. Tag the release
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40. Assign all merged tickets to the
version
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41. Push tag to the deploy branch
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42. Production automatically deploys
from the deploy branch
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43. Mark all tickets in this release as
resolved
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44. Send Notifications
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45. Hoptoad Airbrake
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46. New Relic
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47. Email
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50. The actual deploy
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51. Fairly Standard Deploy
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52. current/ releases/ shared/
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53. Unicorn
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54. bundle install --deployment
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55. Zero Downtime Migrations
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56. No Magic, Just a technique
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57. Adding a column
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58. Add a migration to add the column
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59. Ship code that needs the new
column
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60. Deploy the code
Restart the servers
Then run migrations
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61. More examples
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62. Removing a Column
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63. Renaming a column
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64. A work in progress
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65. Thanks!
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66. Questions?
twitter.com/adelcambre
engineyard.com
We’re hiring!
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