Pre-Con Ed: Webhooks & Continuous Feedback with CA Application Lifecycle Conductor

World®’16

Webhooks &ContinuousFeedbackwithCAApplicationLifecycleConductorVaughnMarshallSr.PrincipalProductOwner

MFX57E

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Abstract

Today'sapplicationdevelopmentlandscapefrequentlyincludesaheterogeneoustoolsetwithsolutionsvaryingacrossvendorsandevendifferingbetweenteams.Insuchanenvironment,howdoyouensurethecriticaleventsoccurringinonesystemcantriggereventsinanother,creatingaseamlessSDLCoutofthemanyparticipatingtools?Joinusforatechnicaldeep-divetoseehowCAApplicationLifecycleConductorcanbothconsumeandproducewebhooks andothereventsforbothdistributed&mainframeproductstoproduceafullyintegratedSDLC.

VaughnMarshallCATechnologiesSr.PrincipalProductOwner


MainframeDevOpsStrategy


Development Deployment&OperationalTesting

ChallengestoDeliveringInnovations…Continuously

Developers ReleaseTeam

Operations

TESTBUILD DEPLOY

Testers

OPERATE

DeploytoProduction

CulturalBarriers,

LargeCodeMonoliths

ConstrainedEnvironments

TestEnvironmentProvisioningChallenges

ManualTestingandScripting

IncompleteTestCasesandData

Cross-EnterpriseDelivery,

CoordinationandVisibility

LackofIntegratedToolsets

IDLETIME DELAYS

Code/Integrate/Build

Functional&UATesting

PerformanceTestingdefect

RE-WORK

defect defect

DELAYS DELAYS

RE-WORK


IntroducingMainframeDevOpsSolutionCAoffersSolutionsin4keyareastofosterprinciplesofAgileandDevOps

ContinuousMonitoringContinuousTestingAgileDevelopment ContinuousDeliveryDevelopandmaintainmainframeapplicationswithagileandmodernmethodologies,toolsetsandcodinglanguages

TESTEarly&Often

DEVELOPSwiftly

DEPLOYReliably

OPERATEEfficiently

ContinuousFeedbackLoop

Reducetestcycletimesandcostsofmainframetestingforbettertimetomarketandmainframeeconomics

Removethebarrierstobusinessagilityonthemainframe,withautomationtoreducetimetomarketandmanageskillsgaps

UnifymonitoringandperformancemanagementacrossmobileandmainframeteamsforbetterMTTRandlowerskillscosts


WebhooksandContinuousFeedback


WhatareWebhooks?

§ Termcoinedin2007fromtheprogrammingterm“hook”

§ Webhooksareuser-definedcallbackswhichrunusingHttpinfrastructure

§ Theyaregenerallytriggeredbyanapplicationeventsuchasupdatingaformfieldorperformingsomeapplication-specificoperation


WhatareWebhooks?(Continued)

§ AdministratorsdefineaHttpendpointthatcan“receive”notificationoftheevent

§ Whentheeventoccurs,aPOSTisdonetothedefinedend-point

§ Webhooks haveevolvedasanindustrystandardwayofintegratingapplicationsviaevents


ConsumingWebhooks– Challenges

§ TheonlythingwebhookshaveincommonacrossdifferenttoolsandapplicationsisthatanHttpPOSTisperformedtoaURL

§ ExactlywhatisPOST’disunspecified– itcouldbeanything:– XMLdata– JSONdata– Rawtext– Nothing!


ConsumingWebhooks – Challenges(Continued)

§ Nostandardsonsecurity– TypicallyAPIkeysareusedbutsomewebhook producersmayrequire

additionalconsiderations

§ Typically,systemsintegratorswouldcode&standupsimplewebservicestoconsumethewebhook events– Thisrequirescustomcoding&knowledgeofwebserviceinfrastructure– Thiscanalsoleadtoaproliferationofservices


IntroducingtheCAALCEventBroker

§ CAALC3.0includesanewcomponentcalledtheCAALCEventBrokertosimplifywebhook consumption– Providesagenericendpointforhandlinganynumbereventstoprevent

serviceproliferation– Multiplemethodsofauthentication– Providesdynamic,rules-basedformattingandprocessingusingworkflow

widgetstoavoidwritingcode


IntroducingtheCAALCEventBroker(Continued)

§ CAALC3.0includesanewcomponentcalledtheCAALCEventBrokertosimplifywebhookconsumption– LeverageCAALCconnectorsandconnectorworkflowwidgetstoquicklybuild

outintegrations– Extensiblewithcustomhandlerswherespecialprocessingorextremelyhigh

throughputisrequired– IncludesaNoSQLdatabaseforeventcapture&logging


ProducingWebhooks fromtheMainframe

§ Webhook producersupportispresentincommonALMtools

§ Webhook supportisnowcomingtoyourfavoriteMainframetoolsviatheMainframeWebhook Server


IntroducingtheMainframeWebhook Server

§ TheMainframeWebhook Servermonitorslocationsforfile-based“events”andpoststhemtoawebhook endpoint

§ Eventsaremonitoredtoensuredeliveryandcanberepostedintheeventoffailure

§ Simpleadministrativeinterfaceprovidedtoconfigurethewebhook eventandreview&manageeventdata


Webhook EventsforCAEndevor SCM&Beyond

§ WillinitiallyallowCAEndevor SCMtoproducepackageeventstoallowforautomationaroundoperationssuchaspackageCASTorEXECUTE

§ Eventually,thelistofsupportedproductswillbeextendedtootherCAApplicationDevelopmentProducts


ExtendingtheEventBrokerADevelopersViewofCAALC’sNewestIntegrationCapabilities


ExtendingtheCAALCEventBroker

§ ExtensibilityisprovidedbyallowingforthecreationofcustomerhandlerJarfiles

§ HandlersareconfiguredtobecalledinaparticularorderviatheCAALCEventBrokerconfigurationfile– Simplicityrules– noOSGIplugins,hotswaporother“plugin”capabilities– Handlersinheritfromabaseclassprovidedinthedistribution

§ Allhandlersareequal– whenaneventisreceived,thehandlersarenotifiedintheirconfiguredorder


ExtendingtheCAALCEventBroker(Continued)

§ Eachhandlermaydeclaretheeventhandledduringprocessingandifitdoesso,theeventstopspropagating

§ Otherwise,itpassestothenexthandler

§ AlloperationsarehandledviaHandlerJars.HandlersareprovidedOOTBto:– Authenticatewithvariousmethods– Formateventswithatargetruleflow– Processeventswithatargetruleflow



§ Fortherulebasedformattingandprocessing,theauthenticationisassumedtohavehappenedsohandlerorderingmatters!– AsecurityContext objectisexpectedtobeplacedinthebindingsbyan

authenticationhandlerpriortotriggeringit– Unlessyouwishtooverridesecurityprovidedbyanotherhandler,

subsequenthandlersshouldnotsetasecurityContext unlessoneisnotyetset



§ Itisuptotheindividualhandlerstoinspecttheeventbodyand/orqueryparametersanddeterminewhattodo(ifanything).Forexample:– Performanactionsuchascustomauthenticationorpreformatting– Propagatetheevent;or– Endeventprocessing


CAALCEventHandlerAbstractClass

§ Determinesifaneventshouldbehandledpublic boolean doesHandleEvent(String data, Map<String, List<String>> headers, final Map<String, Object> additionalBindings);

§ Processestheeventpublic String handleEvent(String data, Map<String, List<String>> headers, final Map<String, Object> additionalBindings);

§ Determinewhethertopropagateorstopeventprocessingpublic boolean doneProcessing();


RecommendedSessions

SESSION# TITLE DATE/TIME

MFX112SRoadmapSession:MainframeApplicationDevelopmentPortfolioReview 11/16/2016at12:45pm

MFT148SRoadmapSession:AchieveDevOpsontheMainframeforFasterTimetoMarket 11/16/2016at4:30pm

MFX111SAdvancedTechniquesforInitiatingtheDevOpsJourney[HSBC] 11/17/2016at12:45pm


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Pre-Con Ed: Webhooks & Continuous Feedback with CA Application Lifecycle Conductor

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