今Serverlessが面白いわけ

1. Yoichi Kawasaki, Microsoft @yokawasa 2 0 10 12 2 1 10 1

2. @yokawasa https://github.com/yokawasa / Azure TSP / / / J J s K B G At 2 2 1 027C N e D A K k B o n l b Ja G A K n pD , Obc

3. https://www.slideshare.net/yokawasa/container-and-serverless-113315212

4. Cloud computing simplified: a Berkeley view on serverless computing https://www2.eecs.berkeley.edu/Pubs/TechRpts/2019/EECS-2019-3.pdf

5. What is Serverless?

6. Serverlesscomputing Wikipedia-ServerlessComputing Serverless AWS-https://aws.amazon.com/serverless/ Wikipedia AWS martinfowler.com

7. https://github.com/cncf/wg-serverless/tree/master/whitepapers/serverless-overview

8. Serverlesscomputingreferstotheconceptofbuildingandrunningapplicationsthatdonotrequireservermanagement.Itdescribesa finer-graineddeploymentmodelwhereapplications,bundledasoneormorefunctions,areuploadedtoaplatformandthenexecuted, scaled,andbilledinresponsetotheexactdemandneededatthemoment. Serverlesscomputingdoesnotmeanthatwenolongeruseserverstohostandruncode;nordoesitmeanthatoperationsengineers arenolongerrequired.Rather,itreferstotheideathatconsumersofserverlesscomputingnolongerneedtospendtimeandresources onserverprovisioning,maintenance,updates,scaling,andcapacityplanning.Instead,allofthesetasksandcapabilitiesarehandledbya serverlessplatformandarecompletelyabstractedawayfromthedevelopersandIT/operationsteams.Asaresult,developersfocuson writingtheirapplications’businesslogic.Operationsengineersareabletoelevatetheirfocustomorebusinesscriticaltasks. Aserverlesscomputingplatformmayprovideoneorbothofthefollowing: 1. Functions-as-a-Service(FaaS),whichtypicallyprovidesevent-drivencomputing.Developersrunandmanageapplicationcodewith functionsthataretriggeredbyeventsorHTTPrequests.DevelopersdeploysmallunitsofcodetotheFaaS,whichareexecutedas neededasdiscreteactions,scalingwithouttheneedtomanageserversoranyotherunderlyinginfrastructure. 2. Backend-as-a-Service(BaaS),whicharethird-partyAPI-basedservicesthatreplacecoresubsetsoffunctionalityinanapplication. BecausethoseAPIsareprovidedasaservicethatauto-scalesandoperatestransparently,thisappearstothedevelopertobe serverless. https://github.com/cncf/wg-serverless/tree/master/whitepapers/serverless-overview • Functions-as-a-Service (FaaS) • Backend-as-a-Service (BaaS)

9. Serverless Serverless 20

10. The UNIX Super Text (December 1, 1992)

11. 1970 1980 1990 2000 2010 2020 2006 2008 2010 Amazon EC2 Google App Engine Microsoft Azure Oracle Cloud 2012 Google Compute Engine Alibaba Cloud 2006.8 2008.4 2010.2 2012.5

12. 2014 2015 2016 2017 2018 AWS Lambda 2014.11 Google Cloud Functions Azure Functions 2016.2 2016.3 IBM Cloud Functions Serverless Framework 2015.10 2016.12 OpenWhisk (OSS) by IBM Fn Project (OSS) by Oracle 2017.10 Serverless Whitepaper by CNCF 2018.2 2019 2018.12 Oracle Function 2018.7 Knative by Google

13. Tech Adoption 2019 https://www.infoq.com/about-infoq CHASM

14. FaaS Serverless can also mean applications where server- side logic is still written by the application developer, but, unlike traditional architectures, it’s run in stateless compute containers that are event-triggered, ephemeral (may only last for one invocation), and fully managed by a third party. One way to think of this is “Functions as a Service” or "FaaS". https://martinfowler.com/articles/serverless.html

15. Monolith Microservices Infrastructure Host OS Hypervisor Guest OS Guest OS Bins/ Libs Bins/ Libs App App Infrastructure Host OS Container Engine Bins/ Libs Bins/ Libs App App

16. HTTP HTTPProxy

17. /bin/sh /bin/sh /bin/sh Fork

18. https://www.amazon.co.jp/dp/product/4797310332/ (1999 9 1 )

19. Serverlesscomputingreferstotheconceptofbuildingandrunningapplicationsthatdonotrequireservermanagement.Itdescribesa finer-graineddeploymentmodelwhereapplications,bundledasoneormorefunctions,areuploadedtoaplatformandthenexecuted, scaled,andbilledinresponsetotheexactdemandneededatthemoment. Serverlesscomputingdoesnotmeanthatwenolongeruseserverstohostandruncode;nordoesitmeanthatoperationsengineers arenolongerrequired.Rather,itreferstotheideathatconsumersofserverlesscomputingnolongerneedtospendtimeandresources onserverprovisioning,maintenance,updates,scaling,andcapacityplanning.Instead,allofthesetasksandcapabilitiesarehandledbya serverlessplatformandarecompletelyabstractedawayfromthedevelopersandIT/operationsteams.Asaresult,developersfocuson writingtheirapplications’businesslogic.Operationsengineersareabletoelevatetheirfocustomorebusinesscriticaltasks. Aserverlesscomputingplatformmayprovideoneorbothofthefollowing: 1. Functions-as-a-Service(FaaS),whichtypicallyprovidesevent-drivencomputing.Developersrunandmanageapplicationcodewith functionsthataretriggeredbyeventsorHTTPrequests.DevelopersdeploysmallunitsofcodetotheFaaS,whichareexecutedas neededasdiscreteactions,scalingwithouttheneedtomanageserversoranyotherunderlyinginfrastructure. 2. Backend-as-a-Service(BaaS),whicharethird-partyAPI-basedservicesthatreplacecoresubsetsoffunctionalityinanapplication. BecausethoseAPIsareprovidedasaservicethatauto-scalesandoperatestransparently,thisappearstothedevelopertobe serverless. https://github.com/cncf/wg-serverless/tree/master/whitepapers/serverless-overview • Functions-as-a-Service (FaaS) • Backend-as-a-Service (BaaS)

20. https://www.cncf.io/

21. • Events • Workflows / Function Composition • Event Orchestration / Chaining • Function Signatures CNCF Serverless WG / Proposals https://github.com/cncf/wg-serverless/tree/master/proposals

22. CNCF Serverless WG • ” interoperability” • FaaS Event-Driven etc. • • (HTTP, AMQP, MQTT, SMTP) OSS(Kafka, NATS) (AWS Kinesis, Azure Event Grid), etc. https://cloudevents.io/ https://github.com/cloudevents/spec/blob/master/json-format.md : CloudEvent JSON (data )

23. https://docs.microsoft.com/en-us/azure/event-grid/ https://serverless.com/event-gateway/

24. Amazon Lambda Azure Functions IBM Cloud Functions Google Cloud Functions Alibaba Function Compute Serverless OpenWhisk OpenFaaS Kubeless Fn Fission Knative

25. OSS Serverless Platform OSS Serverless Framework PublicCloud

26. • https://aws.amazon.com/jp/blogs/news/firecracker-lightweight- virtualization-for-serverless-computing/ • https://github.com/firecracker- microvm/firecracker/blob/master/docs/design.md

27. https://quarkus.io/ • https://developers.redhat.com/blog/2019/03/07/quarkus-next- generation-kubernetes-native-java-framework/ • https://publickey1.jp/blog/19/javaquarkusjavajavared_hat.html

28. Kubernetes-based Serverless • Knative • KEDA • Virtual Kubelet

29. From: Kubernetes https://www.ibm.com/blogs/think/jp-ja/jniino-san-multicloud/

30. https://github.com/knative

31. • • • • • • • https://knative.dev/docs/serving/ https://knative.dev/docs/eventing/ https://knative.dev/docs/build/

32. https://github.com/kedacore/keda • Kubernetes HPA (Horizontal Pod Autoscaler) Pod CPU • KEDA Rabbit MQ Kafka Streaming Azure Storage Queue Azure Service Bus Queue HTTP Pod • KEDA Zero HPA Storage Queue ServiceBus Queue Kafka RabbitMQ HPA KEDA 1->N or N->1 0->1 or 1->0 … K E D A

33. kubelet kube proxy Container Container runtime Virtual Kubelet • Alibaba Cloud ECI Provider • Azure Container Instances Provider • Azure Batch GPU Provider • AWS Fargate Provider • HashiCorp Nomad • OpenStack Zun https://github.com/virtual-kubelet/virtual-kubelet

34. https://www.slideshare.net/hiromasaoka/noops-125109991

35. Y A X B