DevOps, beyond agile

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DevOps, beyond AgileDevOps, beyond Agile

Julien PivottoJulien Pivotto

Agile Tour Louvain-la-Neuve 2013Agile Tour Louvain-la-Neuve 2013October 31, 2013October 31, 2013

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whoamiwhoami• sysadmin @ inuitssysadmin @ inuits• open-source defender for 7+ yearsopen-source defender for 7+ years• devops believerdevops believer• @roidelapluie on twitter/github@roidelapluie on twitter/github

Julien Pivotto DevOps 101

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What is DevOps?What is DevOps?


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A dev shopA dev shop• Friday 5 pm: put this tarball live, NOWFriday 5 pm: put this tarball live, NOW• It works on my machineIt works on my machine• We need this yesterdayWe need this yesterday• You must have the wrong versionYou must have the wrong version


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An ops shopAn ops shop

• What are the dependencies?What are the dependencies?• No machines available. . .No machines available. . .• Which database?Which database?• High availability?High availability?• Scalability?Scalability?


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DevDev• New releasesNew releases• New featuresNew features• Speed of changeSpeed of change

OpsOps• StabilityStability• AvailabilityAvailability• SecuritySecurity


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Dev vs OpsDev vs Ops

http://www.flickr.com/photos/lisadragon/3830252720/


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But. . .But. . .• Ops code tooOps code too

• Bash scripting, pythonBash scripting, python• I A CI A C

• Dev do sysadmin workDev do sysadmin work• TestingTesting• Database migrationsDatabase migrations


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But. . .But. . .

• IT evolvesIT evolves• More velocityMore velocity• More changesMore changes• Volative envVolative env• Large scale appsLarge scale apps• No space for old teamsNo space for old teams• No space for slow movesNo space for slow moves


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So, what is DevOps?So, what is DevOps?


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DevOps daysDevOps days• 200X-2009: World200X-2009: World

Patrick Debois, Gildas Le Nadan, Andrew Clay Shafer, Kris

Buytaert, Jezz Humble, Lindsay Holmwood, John Willis, Chris Read,

Julian Simpson, Luke Kanies, John Allspaw and lots of others. . .

• 2009: Ghent2009: Ghent• Dozens of others since thenDozens of others since then• Conferences and open-spacesConferences and open-spaces• A lot of backlog availableA lot of backlog available


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DevOps is a cultural andDevOps is a cultural andprofessional movementprofessional movement

Adam Jacob, OpsCodeAdam Jacob, OpsCode


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• CultureCulture• AutomationAutomation• MeasurementMeasurement• SharingSharing

John Willis and Damon EdwardsJohn Willis and Damon Edwards


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What it will bring youWhat it will bring you

• Faster time to marketFaster time to market• Deploy oftenDeploy often• A reliable wayA reliable way• AutomatedAutomated• Everyone is happyEveryone is happy


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CultureCultureAutomationAutomation

MeasurementMeasurementSharingSharing


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Burn the SilosBurn the Silos

http://www.flickr.com/photos/tinou/178796318/


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Build one teamBuild one team• People with different skillsPeople with different skills

• DevelopmentDevelopment• CI, CDCI, CD• TestingTesting• InfrastructureInfrastructure• MonitoringMonitoring

• One goal = help the businessOne goal = help the business


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Enable communicationEnable communication

http://www.flickr.com/photos/shelleygibb/3372412222/


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CommunicationCommunication• Sit togetherSit together• Standup (virtual, physical)Standup (virtual, physical)• Mails, XMPPMails, XMPP• Enable direct communicationEnable direct communication• One languageOne language


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Build TrustBuild Trust• ExperimentExperiment• Measure successMeasure success• Measure failureMeasure failure• Automate the thingsAutomate the things• Trust between peopleTrust between people


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Play togetherPlay together

http://www.flickr.com/photos/kona99/3987853510/


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Play togetherPlay together

• More ideasMore ideas• Sharing responsabilitySharing responsability• Different approachesDifferent approaches• More funMore fun


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Taking responsabilitiesTaking responsabilities

http://www.flickr.com/photos/pointshoot/1144799868/


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Give AccessGive Access

• Shared goal, problems, responsabilitiesShared goal, problems, responsabilities• Everyone is on callEveryone is on call• Full platform access: logs/metrics/toolsFull platform access: logs/metrics/tools• Do you let a blind paint your house?Do you let a blind paint your house?


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Agile?Agile?

• DevOps is not against agileDevOps is not against agile• Not a reaction to agileNot a reaction to agile• Pushing Agile to its limitsPushing Agile to its limits• Definition of doneDefinition of done

• TestedTested• In prodIn prod• Monitored and in prodMonitored and in prod• . . .. . .


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A software project is NOT doneA software project is NOT doneuntil your last user is deaduntil your last user is dead

Kris BuytaertKris Buytaert


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Automate all the thingsAutomate all the things• Reproducable buildReproducable build

• Build on a prod-like environmentBuild on a prod-like environment• No more "works on my machine"No more "works on my machine"

• TestTest• Testing reduces riskTesting reduces risk• Make you more confidentMake you more confident

• DeployDeploy


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Continuous integrationContinuous integration

• Build each commitBuild each commit• Nightly, weeklyNightly, weekly• Integrate, deploy and deliverIntegrate, deploy and deliver• Git push and get feedbackGit push and get feedback


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Test automationTest automation

• Unit testsUnit tests• Regression testsRegression tests• Compatibility testsCompatibility tests• Selenium, cucumber, . . .Selenium, cucumber, . . .• TTDTTD


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CI CD CDCI CD CD

• Continuous integration (>dev)Continuous integration (>dev)• Continuous deployment (>uat)Continuous deployment (>uat)• Continuous delivery (>prod)Continuous delivery (>prod)• Deploying to prod = business decisionDeploying to prod = business decision


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IACIAC

• Infrastructure as CodeInfrastructure as Code• Put infra under version controlPut infra under version control• History, amend, modelize your infraHistory, amend, modelize your infra• Deploy monitoring, backups, appsDeploy monitoring, backups, apps• It is NOT scriptingIt is NOT scripting• Think puppet, chef, . . .Think puppet, chef, . . .


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OrchestrationOrchestration

• Restart all httpdRestart all httpd• Which servers have php 53 installed?Which servers have php 53 installed?• Configure db, trigger commands..Configure db, trigger commands..• On multiple server at the same timeOn multiple server at the same time• Think mcollective, ansible, . . .Think mcollective, ansible, . . .


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FeedbackFeedbackFeedbackFeedbackFeedbackFeedback


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MetricsMetrics

• Easily create new metricsEasily create new metrics• Build dashboardsBuild dashboards• Learn from logsLearn from logs• Learn from *Learn from *


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Monitor every platformMonitor every platform

• DevDev• UatUat• ProdProd• See the troubles earlySee the troubles early


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Start with developmentStart with development


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Then runtimeThen runtime• OSOS

• disk, cpu, i/o, memorydisk, cpu, i/o, memory

• MiddlewareMiddleware• queuesqueues• API callsAPI calls• connectionsconnections

• ApplicationApplication• response timeresponse time• usersusers• objectsobjects• usageusage


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Measure everythingMeasure everything

• DeploymentsDeployments• CommitsCommits• TicketsTickets• . . .. . .


;Julien Pivotto DevOps 101

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Read metricsRead metrics

• Get business keysGet business keys• Share dashboards with dev ops mgmtShare dashboards with dev ops mgmt• Find metrics that matterFind metrics that matter• Learn from metricsLearn from metrics


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ShareShare• Open SourceOpen Source• Talk about experienceTalk about experience• Publsh codePublsh code• BacklogBacklog• Avoid lock-insAvoid lock-ins


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DevOps is NOT about toolsDevOps is NOT about tools


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DevOps is NOT adding a new teamDevOps is NOT adding a new team


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DevOps is NOT a job titleDevOps is NOT a job title


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You need to make it work for youYou need to make it work for you


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Backlog and participateBacklog and participate

• http://www.devopsdays.org/http://www.devopsdays.org/• http://devopscafe.org/http://devopscafe.org/• http://jedi.be/blog/http://jedi.be/blog/• http://codeascraft.com/http://codeascraft.com/• http://krisbuytaert.be/http://krisbuytaert.be/


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Thank youThank youAny question?Any question?


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ContactContactJulien PivottoJulien [email protected]@inuits.eu@roidelapluie@roidelapluie

INUITS bvbaINUITS bvbaBelgiumBelgium+32 473 441 636+32 473 441 636https://inuits.euhttps://inuits.eu


DevOps, beyond agile

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