GitHub Flow — AWS Summit Tokyo 2015

by Coby Chapple

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cobyism

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5,000,000 10,000,000 15,000,000 20,000,000 25,000,000 2008 2009 2010 2011 2012 2013 2014 2015 (YTD) DEVELOPERS ARE COLLABORATING ON PROJECTS ON GITHUB RIGHT NOW 9.7 MILLION 23.3 MILLION

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293 Employees 65% Remote !

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COMPANY PRODUCT WORKFLOW VALUES

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⁉

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Use the simplest possible system that will work for your team. Scott Chacon @schacon // GitHub Co-founder http://scottchacon.com/2011/08/31/github-ﬂow.html

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SIMPLE KEEP IT

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FLOW GITHUB

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" #

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" $ $ $ # $

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" % $ $ $ # $

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MASTER FEATURE BRANCH PULL REQUEST

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DEPLOY BUILD REVIEW

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Build, review, deploy. All good development goes through these phases, but GitHub turns it into ﬂow. Chris Wanstrath @defunkt // GitHub Co-founder, CEO

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#★ Approachable ★ Lightweight ★ Scalable

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NOT JUST FOR SOFTWARE ✨&

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github / ! github

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github support blog-posts product docs github sales projects training community / ! github

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COMPANY-WIDE CONTINUOUS IMPROVEMENT

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KAIZEN վળ

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FEATURE DEVELOPMENT AT GITHUB & SHIP IT!

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& & &

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& & &

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& & & New Issue

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& & &

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& & &

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& & &

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& & & QUICK PULL REQUEST

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& & &

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& & &

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& & &

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& & & HUBOT github / hubot '

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& & &

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& & &

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& & &

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& & &

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& & & % Merge Pull Request

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& & &

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& & & ✨)

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& & &

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& & & MASTER FEATURE BRANCH PULL REQUEST LOCAL  DEVELOPMENT

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& & &

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& & &

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& & &

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& & &

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& & &

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& & &

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WHY SO MANY OPTIONS?

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& & &

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& & & PULL REQUEST DISCUSS BRANCH DEPLOY

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& & & $ $ " # %

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" % & & & $ $ $ # $ $ $ -

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& & & #⚡ % Merge Pull Request ✨)

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& & &

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& & & FEATURE FLAGS

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& & & def new_feature_enabled? … end

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& & & if new_feature_enabled? // New functionality else // Current functionality end

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& & & def new_feature_enabled? preview_features? end

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& & & def new_feature_enabled? preview_features? && team_access?(:some_team) end

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& & & def new_feature_enabled? true end

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& & & jnunemaker / ﬂipper '

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& & &

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& & & DARK SHIPPING

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& & &

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& & & #★ Realistic load ★ Minimal impact ★ Allows iteration

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& & & PRR PRODUCTION READINESS REVIEW

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& & & QUESTIONS ★ General ★ Dependencies ★ Fallbacks ★ Performance ★ Documentation ★ Security

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& & & PSHC POST-SHIP  HEALTH  CHECK

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& & & PRR PSHC

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& & & PRR PSHC ★ 1 month ★ 3 months ★ 6 months

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& & & PRR PSHC ★ 1 month ★ 3 months ★ 6 months FEEDBACK

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& & & PRR PSHC ★ 1 month ★ 3 months ★ 6 months FEEDBACK

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& & & LEARN FROM  THE PAST.

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COMMON QUESTIONS ?

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LARGE TEAMS?

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TOO SIMPLE TO BE TRUE?

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IF THINGS GO WRONG?

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WHAT ABOUT CLEAN HISTORY?

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TRUST IS HARD!

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WHEN TO USE GITHUB FLOW?

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TRY IT. PICK WHAT WORKS

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IT WORK !MAKING

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WRITE  GOOD DOCS.

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INVEST IN  AUTOMATION.

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BUILD  TRUST.

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DISCUSS  EARLY.

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QUESTION COMPLEXITY.

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EMBRACE FLOW.

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Thank you! cobyism 0 cobyism.com (

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