© 2012 about me doing agile since 1999 start ups / enterprises planigle - consulting and training...
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Deploying Often
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About MeDoing agile since 1999Start ups / EnterprisesPlanigle - Consulting and TrainingQcue – VP, Engineering
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Case Study: QcueSAASSmall team (DevQAOps)Deploy every weeknight (for 2 years)Automation and monitoring are keyLots of small issuesFew big issues
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AgendaWhy do it?PrerequisitesGetting Good At It
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Value Before Continuous DeployA lot of the literature focuses on going “all
the way”You get a lot of value before thatAnd it is much easier!
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Customer BenefitsCan turn around fixes / small features quicklyAble to give feedback incrementally
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Engineering BenefitsEasy to narrow down what caused the
problemEasy to fixKnown stability
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What if I don’t do SaaS?Deploy to an internal server insteadUse data typical of productionQA, Prod Mgmt, etc. can use itEverything else can still apply
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DownsidesEvery deploy can crash and burnHave to be vigilantIf done poorly, can spend all your time
recovering
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Prerequisites – TestingUnit testsIntegration testsAbility to see what it will look like in
production
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Prerequisites – DeploymentAutomated buildNotification on failurePromote last build that passes
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Prerequisites – MonitoringWeb site / User monitoringApplication / Guts monitoringLog monitoring
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Prerequisites – ProcessesWhat if deployment fails?What if your server crashes?What if data is corrupted?What if a critical error gets deployed?
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Getting Good At It / Tips and TricksDefects are the first priorityIdentify / fix the root causeIdentify / repair holes in testing / monitoringSmall stories helpCode reviews / pair programmingRetrospect often and changeDon’t be disruptiveCommunicate early and often!
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What if it is TOO BIG?Break into incrementsMake it admin onlyA few customers at a time
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What if it is too risky?Identify risky areasVary process by riskinessAnyone can block the deploy
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Messaging to CustomersRelease and Marketing can be distinctFine grained vs. large grained
communication
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ResourcesWalter Bodwell
Twitter: @wbodwellwww.planigle.com
www.walterbodwell.com