devops and agile methodology - lessons learned...devops and agile methodology - lessons learned...

DevOpsandAgileMethodology-LessonsLearnedSusanDuncan-@SusanDuncanOrSeniorPrincipalProductManagerOracleCloudDevelopmentToolsApril,2019

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DevOpsandAgileMethodology-LessonsLearnedSusanDuncan-@SusanDuncanOrSeniorPrincipalProductManagerOracleCloudDevelopmentToolsApril,2019


TheCloudChangedEverything• ReleaseFrequency• QualityofSoftware•  SpeedofFixingIssues• DevelopmentTechnologies• DevelopmentProcess

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AgileMethodologyatOracle•  Shortdeliverycycles• Deliveryofincrementalsolutions•  Focusonhighestprioritytasks• Adaptconstantly

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Plan

Code

Build

Test

Release

Deploy

Operate

Monitor

DevOps–EnablerforAgile•  DevOpsisaculture,movementorpracticethatemphasizesthecollaborationandcommunicationofbothsoftwaredevelopersandotherinformation-technology(IT)professionalswhileautomatingtheprocessofsoftwaredeliveryandinfrastructurechanges.Itaimsatestablishingacultureandenvironmentwherebuilding,testing,andreleasingsoftware,canhappenrapidly,frequently,andmorereliably.– Wikipedia

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HowWeDoIt


OracleDevelopmentTeamsOverview

~280DevelopmentOrganisations

Sprints

OracleDeveloperCloudService

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~23,250Users

~6250Projects

~18000GitRepositories


•  Code/CIManagement–  VersionManagement–Git–  BuildAutomation

•  Ant,Maven,Gradle,npm,Grunt,Bower,Gulp,SQLcl,Shell

–  TestAutomation•  Selenium,JUnit,Findbugs,Sonar,utPLSQL,others

–  Deployment&ProvisioningAutomation•  Docker,K8S,Terraform,PSM,OCICLI

–  ContinuousIntegrationEnginewithPipelines

•  Team/AgileManagement–  IssuesTracking–  AgileProcessManagement–  PeerCodeReview–  Wiki–  Activitystream

OracleDeveloperCloudService–What’sInside


OneTeamOverview

~200ProjectMembers

1000sLOCs

2WeekSprints

OracleDeveloperCloudService

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SourceManagement

40GitRepositories

ComponentPerRepositoryTask&Issue

Tracker

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OneProject–DeveloperCloudServiceTeam


TaskWork~200commitsaweek

Master

Newfeature/bugfixes

CompletecodeMergerequest

totarget

Codereview

Iterate,fix&review

Codeapproved Automatebuild

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PreparingforRelease

Master

ReleaseBranch

CriticalBugFix Automatebuild

Release

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CodeManagementTips

•  It’soktohavemorethanonegitrepository•  Leveragegitflowprocess–provideagility• UnitTests,unittests,unittests• Automatecodereviewprocess• Defaultcodereviewerperarea• Branchmainforarelease– Lockbranchtorequireapprovalforshowstoppersonly

• Databasescriptsarepartofyourcodebase

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• Commit/pushbuilds– ~50buildsaday•  +2timesaday– Allgitrepositories– DeploytodevVM– Automatedtests– QAtests

• Masterbranchedevery2weeks– Allgitrepositories– DeploytostageVM– Automatedtests– ManualQA– Candidateforproductiondeploy

– ~Candidateforcustomers

BuildProcess

Development Production

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BuildTips• Automatenotificationfrombuilds(prevent“Ididn’tknowitbroke”)– Email,Slack,PagerDuty,etc

• Requireatestscriptinabuildfornewcapabilities• Regularbuildsleadtoregulartestingleadtoearlyissuedetection•  Thereisnosuchthingasbuildsoverload– Buildexecutorsdon’tneedarest

• Buildsformonitoringproductionenvironmentsruntime

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• Getemailaboutnew/updatedtask• CheckSprintforopenissues• Gitbranchforfeaturework• Workoncode– IDEofchoiceorinthecloud

• Commitandpushchanges– Commitassociatedwithspecifictask

TheDeveloper’sDay

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• Runslocalbuildoncode•  SubmitMergeRequest– Initiatecodereviewcycle– Reviewersnotified

• Receivereviewcomments• Modifycode,automaticallystartingbuilds• Whenapprovedmerge• Closetask

TheDeveloper’sDay

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•  Trackactivitystream•  Issuemanagement–assign,tracknewissues,• Mergerequests• Managesprint– Trackreportsandprogress

• Promotestagingtoproduction– Createreleasebranches(protected)– Manageshow-stopperscheck-ins

DevelopmentManager’sDay

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• Mergetriggersabuild• Unittestsareexecuted• BuildproducesbinariesanddeploystoMavenrepo•  Ifbuildfails–developerisnotified

OpsAutomation’sDay

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•  Scheduledbuildpromoteslatestsuccessfulartifactstostagearea•  SuccessfuldeploynotifiesQAteam• QAverifyclosedissues•  SeleniumUItestrunautomatically

OpsAutomation’sDay

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ü DefineBuildProcessesü Monitorruntimeenvironments– Oraclemanagementtools


AdditionalLessonsLearned•  IntegratedAgile+DevOpsiskey• Cloudbasedenvironmentissomuchsimpler•  Teamcollaborationiskey–everyoneisacommittedowneroftheproduct

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Demo–ADayInTheLifeOfADevelopmentTeam


Metrics:DeveloperCloudServiceTeam• OneDeveloperCloudServiceProject•  50gitrepositories,1binaryrepository•  170projectmembers,50activecontributors•  200commitsaweek•  50buildsaday•  23Kissues•  3Kmergerequests•  250wikipages

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•  Fulltraceability–issue->codechange->build->deploy•  Fasterfeedbackoncodecommits•  Improvedteamcollaboration• OnestopshopforAgile+DevOps• Accessibilityofprojectartifacts•  Easyprovisioningandscaling

SummaryofDevCSBenefits

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Questions?

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devops and agile methodology - lessons learned...devops and agile methodology - lessons learned...

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