book

Building Serverless Applications on Knative

by Evan Anderson

November 2023

Intermediate to advanced

252 pages

7h 34m

English

O'Reilly Media, Inc.

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Who Is This Book For?BackgroundContainersCloud ProvidersKubernetes and Cloud NativeCloud-Hosted ServerlessHow This Book Is OrganizedConventions Used in This BookUsing Code ExamplesO’Reilly Online LearningHow to Contact UsAcknowledgments
Why Is It Called Serverless?A Bit of TerminologyWhat’s a “Unit of Work”?ConnectionsRequestsEventsIt’s Not (Just) About the ScaleBlue and Green: Rollout, Rollback, and Day-to-DayCreature Comforts: Undifferentiated Heavy LiftingCreature Comforts: Managing InputsCreature Comforts: Managing Process LifecycleSummary
Setup for This ChapterA Single-Page AppBootstrapping a React AppA Basic Web UIPackaging Our AppInto the Cloud on Your Laptop!Under the Covers: How Requests Are HandledContinuing to BuildAdding an APIAPI Gateways and Composing an AppSplitting an API into ComponentsAugmenting a ProxyComplementary ServicesKey-Value StorageObject StorageTimers (Cron)Task QueuesWorkflowsSummary
Infrastructure AssumptionsHardware and Operating System ManagementScheduling and the Datacenter as a ComputerServingControl-Plane ConceptsLife of a RequestAutoscaling Control LoopComparison with AWS LambdaEventingControl-Plane ConceptsDelivery GuaranteesLife of an EventEcosystemComparison with Amazon SNS and Other Cloud ProvidersComparison with RabbitMQComparison with Apache KafkaEventing SummaryFunctionsSummary
Top Speed: Reducing DragContinuously Delivering ValueWinning the (Business) RaceMicrobillingA Deal with the CloudClouding on Your OwnWhat Happens When You’re Not RunningThe Gravitational Force of ServerlessImplications for LanguagesImplications for SandboxingImplications for ToolingImplications for SecurityImplications for InfrastructureSummary
The Monolith Next DoorMicroservice Extension PointsAsynchronous Cleanup and ExtensionExtract, Transform, LoadThe Strangler Fig PatternExperimentsDark Launch and Throwaway WorkA Serverless Monolith?Summary
Events and MessagesWhy CloudEventsEvents as an APIWhat Does Event-Driven Mean?Event DistributionContent-Based Routing Versus ChannelsInternal and External EventsBuilding for Extension with “Inner Monologue”Workflow OrchestrationLong-Lived Workflows, Short-Lived ComputeWorkflow as Declarative ManifestsEvent BroadcastWhat’s So Tricky About Broadcast?Broadcast in Fast-Moving SystemsTask QueuesTask Queue FeaturesScaling in Time Instead of InstancesSummary
Ambient Event PublishingThe Active Storage PatternIs Your Database Your Monologue?Scenarios for Inner MonologuesKey EventsWorkflowsInner Monologues Versus RPCsSensitive Data and Claim ChecksHow to Use an Inner MonologueExtending the Monolith: Workflow DecorationScatter-Gather AdviceAccount Hijacking DetectionVersioned Events, Unversioned CodeClouds Have Monologues TooKubernetes: Only a MonologueAudit Log or Mono-Log?Summary

Different Types of Work in the Same InstanceWork Units That Don’t Signal TerminationProtocol MismatchInelastic ScalingInstance Addressability and ShardingSummary
MeltdownNarrowest BottleneckFeedback LoopCold Start, Extra SlowThe Race to ReadyAvoiding Cold StartsForecasting Is HardLoopbackHotspots Don’t ScaleGraphs and Focal PointsData SizeLockingExactly Once Is HardSummary
Log AggregationTracingMetricsLive Tracing and ProfilingAPM AgentsSummary
35 Years of ServerlessinetdCGIStored ProceduresHerokuGoogle App EngineCloud FoundryAWS LambdaAzure and Durable FunctionsKnative and Cloud RunCloudflare Workers and Netlify Edge FunctionsWhere to Next?AIDistributed and the EdgeBeyond StatelessSummary

Content preview from Building Serverless Applications on Knative

About the Author

Evan Anderson is a principal software engineer at Stacklok, where he’s working to secure the software supply chains that power all modern software. Previously, he was a senior staff software engineer at VMware, where he was a technical lead on the Tanzu Application Platform and a lead on the Knative project.

Prior to VMware, he worked at Google for 15 years, including on Google Compute Engine, Google App Engine, Cloud Functions, and Cloud Run. While at Google, Evan was a founding member of the Knative project and worked on designing the Serving API and conformance specification and framework.

Outside of work, he’s a parent and runner; he particularly enjoys getting away from it all on trails for multihour runs.

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Certified Kubernetes Application Developer (CKAD)

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ISBN: 9781098142063Errata Page Supplemental Content

Building Serverless Applications on Knative

by Evan Anderson

About the Author

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

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Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.