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©2017PuneetSachdev|Allrightsreserved©2017PuneetSachdev|Allrightsreserved

Microservices:TheNetflixWay

21st April2017

HandsonWorkshop

DevOps,MicroservicesandContainersSummit– Delhi

Puneet Sachdev Chief Architect - Agile, DevOps and Product EngineeringNIIT Technologies https://www.linkedin.com/in/puneetsachdev

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Microservicesvs.SOAvs.APIs

Microservicesisaboutsplittingasingle

applicationintosmallerpieceswhichare

independentandhavetheirownlifecycle

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Microservicesvs.SOAvs.APIs

CRM DW Finance Loyalty

SOAisaboutintegratingdifferentapplications

whichcanbeinternalor3rd party

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Microservicesvs.SOAvs.APIsSOA Microservices

• Integrationbetweendifferentapplications • Splittinganapplicationintosmallerpieces

• Dominatedbyproprietarystacks • DominatedbyOpenSourcecomponentsfromorganizationslikeNetflix

• SmartPipes,DumbEndpoints • Dumbpipes,SmartEndpoints

• TypicallyHub-n-Spoke.TechnologyMonoliths

• CompletelyDistributed

APIS

• APIsareinterfaceswhichareexposedeitherinternallyand/orexternallyandhavegovernanceandmanagementaroundit

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NetflixMicroservicesStack

ServiceDiscovery NetflixEureka

NetflixZipkin

Config NetflixArchaius

Tracing

NetflixZuul

NetflixRibbonClientLB

FaultTolerance

Proxy

NetflixHysterix

ServiceRegistrar NetflixPrana

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Concept1:ServiceDiscoverythroughNetflixEureka

Concept2:CircuitBreakerusingNetflixHystrix• Microservicesapplicationshavemanymovingpartsandspanacrossmultipleboundaries

• Howtopreventanetworkorservicefailurefromcascadingtootherservices?

Concept3:RealtimemonitoringusingNetflixHystrixDashboard• Whenthingsfail,itisextremelyimportanttonotewhatisfailing

• Howtomonitorinnearrealtimemanymicroservices?

Concept4:LoadBalancingusingNetflixRibbon

• Dumbpipesandsmartendpoints.Wheredoesthisleaveloadbalancing?

Concept5:Proxying usingNetflixZuul• Withdiversetraffichittingmicroservices,howtogetanabilitytoprovideintelligentfilterson

requests

• Microservicesapplicationsrunincontainerized/virtualizedandcloudenvironmentswheretheiractuallocationschangedynamically

• Howdoesaclientofaservicediscoverthelocation?

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Hands On Demo

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

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SentenceMicroservices

SubjectService

VerbService

ArticleService

AdjectiveService

NounService

You saw the leaky seat

SentenceService

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

2 servers • 192.168.0.4• 192.168.0.3

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SentenceMicroservices– Demo1

VerbService

Eureka

VerbService2

1. Start Eureka Server 2. Start Verb Microservice3. Start Verb2 Microservice4. Check Eureka console

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

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SentenceMicroservices– Demo2

VerbService

Eureka

VerbService2

SentenceService

SubjectService

ArticleService

AdjectiveService

NounService

1. Start Eureka Server 2. Start Verb Microservice3. Start Verb2 Microservice4. Check Eureka console5. Start Sentence Service 6. See Circuit Breaker in action

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

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SentenceMicroservices– Demo3

VerbService

Eureka

VerbService2

SentenceService

SubjectService

ArticleService

AdjectiveService

NounService

1. Start Eureka Server 2. Start Verb Microservice3. Start Verb2 Microservice4. Check Eureka console5. Start Sentence Service 6. See Circuit Breaker in action7. Hystrix Dashboard

HystrixDashboard

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

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SentenceMicroservices– Demo4

VerbService

Eureka

VerbService2

SentenceService

SubjectService

ArticleService

AdjectiveService

NounService

1. Start Eureka Server 2. Start Verb Microservice3. Start Verb2 Microservice4. Check Eureka console5. Start Sentence Service 6. See Circuit Breaker in action7. Hystrix Dashboard8. All services running

HystrixDashboard

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

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SentenceMicroservices– Demo5

VerbService

Download the code from: https://github.com/psachdev6375/microservices-bootcamp

Eureka

VerbService2

SentenceService

SubjectService

ArticleService

AdjectiveService

NounService

Zuul

HystrixDashboard

1. Start Eureka Server 2. Start Verb Microservice3. Start Verb2 Microservice4. Check Eureka console5. Start Sentence Service 6. See Circuit Breaker in action7. Hystrix Dashboard8. All services running9. Zuul Proxy

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Thank You

Chief Architect - Agile, DevOps and Product Engineering, NIIT Technologies https://www.linkedin.com/in/puneetsachdev

Puneet Sachdev