Post on 10-Apr-2017
RELEASE EARLY &
Reducing Deployment Friction
RELEASE OFTEN
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ANDY DELCAMBREIt rhymes with “Welcome”
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@adelcambre
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REDUCING DEPLOYMENTFRICTION
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REDUCING DEPLOYMENTFRICTION
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REDUCING DEVELOPMENTFRICTION
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STARTING A NEW TASK
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git checkout -b U-666
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git commit -m “[U-666] add unicorns”
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Finished in 10.809554 seconds
109 examples, 0 failures, 3 pending
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EyBot
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require 'ey/irc'
run EY::Irc::Receiver.new { |message| case message.body when /^ping$/ message.say(message.to, ”Hello World!”) endend
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CONTINUOUS INTEGRATION
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MASONSaturday, October 1, 11
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git checkout mastergit merge U-666
git push origin master
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MARK TICKET AS “MERGED”
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AUTO DEPLOY TO EDGE
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404 DEPLOYS IN SEPTEMBER
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~ 20 per week day
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2-9 Production Deploys per Day
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EyBot: release awsm production
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Ensure master is green
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Tag the release
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Assign all merged tickets to the version
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Push tag to the deploy branch
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Production automatically deploys from the deploy branch
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Mark all tickets in this release as resolved
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Send Notifications
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Hoptoad Airbrake
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New Relic
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The actual deploy
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Fairly Standard Deploy
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current/ releases/ shared/
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Unicorn
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bundle install --deployment
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Zero Downtime Migrations
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No Magic, Just a technique
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Adding a column
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Add a migration to add the column
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Ship code that needs the new column
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Deploy the codeRestart the serversThen run migrations
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More examples
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Removing a Column
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Renaming a column
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A work in progress
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Thanks!
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Questions?
twitter.com/adelcambre
engineyard.com
We’re hiring!
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