.NET Aspire in Action Build, Observe, and Scale Cloud-Native .NET Microservices with Containers, Telemetry, and CI/CD Ship real .NET systems—fast, safely, and with confidence. This hands-on guide walks you from an empty repo to a production-ready microservices system. You’ll build the complete Northwind Shop (catalog, orders, checkout), instrument it with tracing and metrics, secure it end-to-end, and automate delivery with CI/CD—so you can stop learning concepts and start shipping results. Why this book works Practical, outcome-first learning. Every chapter ends with a working checkpoint so you don’t just read—you build, test, and operate real code. - Production patterns, not theory. Security, observability, testing, cost-control and runbooks are integrated into the workflow, not tacked on later. - Clear tradeoffs and decisions. REST vs gRPC, gateway strategies, rollout patterns, sampling, and schema changes—decisions are explained with real consequences and examples. What you’ll gain (key outcomes) A fully runnable Northwind Shop reference implementation you can adapt to your team. - End-to-end observability using OpenTelemetry and OTLP exporters (Application Insights, Prometheus/Grafana). - Robust CI/CD pipelines (GitHub Actions), hardened container images, and deployment patterns (blue/green, canary). - Reliable data and messaging strategies (EF Core, Postgres/SQL Server, Redis, RabbitMQ/Azure Service Bus/Kafka). - Security and identity best practices using Microsoft Entra ID/OpenID Connect, Key Vault workflows, and audit telemetry. - Scalable, resilient operations: autoscaling, circuit breakers, chaos drills, runbooks, and incident playbooks. Who this book is for .NET developers moving from monoliths to cloud-native microservices. - Technical leads and architects who need repeatable, pragmatic design patterns. - DevOps/SRE engineers focused on telemetry, CI/CD, and cost-effective operations. What’s inside (high level) Hands-on setup: AppHost, Dashboard, Minimal APIs, UI, and local orchestration with Docker. - API design and gateways: REST vs gRPC, YARP, consumer-driven contracts, and end-to-end tracing. - Data & caching: EF Core migrations in CI, zero-downtime schema changes, Redis strategies. - Messaging & integration: outbox patterns, idempotency, tracing message flows. - Observability deep dive: traces, metrics, logs, sampling, SLOs, and alert design. - Testing & CI/CD: Testcontainers, contract tests, load testing, hardened images, SBOMs, and GitHub Actions. - Cloud ops: packaging for Kubernetes and Azure Container Apps, ingress/TLS, IaC, and runbooks. - Scaling, cost control, and operational reliability: autoscaling, backpressure, profiling, and budget guardrails. Why .NET Aspire now You get first-class orchestration for services, batteries-included observability, and a consistent developer experience that shortens feedback loops. This book shows you how to apply Aspire’s strengths to real delivery—without hand-waving. Start delivering value now If you want a pragmatic, battle-tested path to build, observe, secure, and operate .NET microservices—this book gives you the code, the patterns, and the runbooks to make it happen. Buy .NET Aspire in Action today and move from experiments to reliable production delivery.