Learning Dapr:Building Distributed Cloud Native Applications

Copyright
Table of Contents
Preface
	Resources
	Conventions Used in This Book
	O’Reilly Online Learning
	How to Contact Us
	Acknowledgments
Introduction
	What Is Dapr?
		A Programming Model for a Heterogeneous Environment
		More Helpful, Less Opinionated
		Don’t Reinvent the Wheel!
		Unified Programming Model
	Dapr Architecture
		Language Support
	Getting Started with Dapr
		Hello, World! with Dapr Standalone Mode
		Hello, World! with Dapr Kubernetes Mode
	Using gRPC
		Invoking an Application from a gRPC Client
		Writing a gRPC Server
	Bindings
		Binding in Standalone Mode
		Binding in Kubernetes Mode
	Summary
Chapter 1. Services
	The World Before Cloud
	Cloud Promises and Challenges
		Availability
		Elasticity
		Cloud Native Applications
		Infrastructure Is Boring
	Service Invocation
		Name Resolution
		Requests and Responses
		Concurrency Control
		Service Invocation Experiment
		The Universal Namespace
	Pub/Sub
		Benefits of Message-Based Integration
		Pub/Sub with Dapr
		How Pub/Sub Works
	Dapr Components
		Dapr Configurations
		Custom Pipelines
		Custom Pipeline Experiment
		OAuth 2.0 Authorization
		Authoring a Custom Middleware
	Distributed Tracing
		Tracing Middleware
		Tracing with Zipkin
		Tracing with Azure Monitor
	Service Operation
		Service Deployment and Upgrade
		OAM
	Summary
Chapter 2. State
	State Management
		Stateless Versus Stateful
		Why Are Stateless Services Preferred in the Cloud?
		Challenges of Hosting Stateful Services
		Converting Stateful Services to Stateless Services
	Dapr State Management
		Concurrency Model
		Consistency Model
		Bulk Operations and Transactions
		Multiple State Stores
		Retry Policies
	The Dapr State API
		Key Scheme
		Get Requests
		Set Requests
		Delete Requests
		Transactional Requests
	Working with the Dapr State API
		Data Handling Considerations
		Data Querying and Aggregation
	State Stores
		Redis
		Azure Cosmos DB
		Etcd
		Apache Cassandra
		Couchbase
	Custom State Stores
		Implementing the State API
		Updating the Component Registry
	Summary
Chapter 3. Messaging
	Event-Driven Programming
		Messages Versus Events
		Input Bindings and Output Bindings
		Pub/Sub
	Pub/Sub with Dapr
		Implementing the PowerShell Script
		Testing Pub/Sub with the Dapr CLI
		Dapr Pub/Sub Behaviors
		Extending Dapr Pub/Sub
	Input and Output Bindings with Dapr
		Using Input Bindings
		Using Output Bindings
		Implementing Input Bindings
		Implementing Output Bindings
		Autoscaling with KEDA
	Messaging Patterns
		The Saga Pattern
		Content-Based Routing
		Routing Slip
		Smart Proxy
		MapReduce
	Summary
Chapter 4. Security
	Securing a Distributed Application
		Access Control
		Data Protection
		Secured Communication
		Intrusion and Abnormality Detection
	Dapr Security Features
		Secret Stores
		Implementing a Secret Store
		The Secret API
		Mutual TLS (mTLS)
		Dapr mTLS
	Summary
Chapter 5. Actors
	The Actor Pattern
		Modern Actor Frameworks
		Misuse of the Actor Model
	Dapr and Actors
		Invoking a Dapr Actor
		State Management
		Timers
		Reminders
	Getting Started with Writing Dapr Actors for C#
		Defining the Actor Interface
		Implementing the Actor Interface
	Summary
Chapter 6. Application Patterns
	Cloud Native Applications
		Cloud Environment
		Cloud Native Applications with Dapr
	System Integrations with Dapr
		Distributed Workflow as Finite State Machine
		Synchronization
	Dapr in a Larger Ecosystem
		Yeoman Dapr Generator
		Dapr in Visual Studio Code
		Dapr with ASP.NET Core
		Dapr in a Bigger Application
		Dapr and Service Meshes
	Dapr on Edge
	Summary
Chapter 7. Dapr’s Future
	Capability Delivery
		Architecture
		Application Scenarios
	Enhanced Actors
		Aggregators
		Query Interface
		Actor Graph
		Multiversion Actors
		Actor Middleware
	The Universal Namespace
		Architecture
		Application Scenarios
	Dapr on Edge
		Dapr as a Lightweight Function Runtime
		Dapr in WebAssembly
		Dapr as a Script
	Other Dapr Improvements
		Dapr Component Projection
		Best Practices and Proven Patterns
		Dapr Descriptor
		Dapr to Facilitate Multiparty Computing
	Summary
Index
About the Authors
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