Rust and Kubernetes: Building Reliable Microservices

The book "Rust and Kubernetes: Building Reliable Microservices" is a practical guide for developers who want to combine the power of the Rust systems language with the flexibility of Kubernetes container orchestration. In an era where performance and security are becoming critical factors, Rust offers unique advantages: zero-cost abstractions, memory safety guarantees, and blazing execution speed.

What is this book about?

This is not just a reference, but a full immersion into cloud application development. You will go from writing your first microservice in Rust to deploying it in a production Kubernetes cluster. Special attention is paid to:

• Creating HTTP services using the Actix-web and Axum frameworks, including request handling, routing, and middleware
• Working with the Kubernetes API via the kube-rs client library: creating Custom Resource Definitions (CRDs), controllers, and operators
• Containerizing applications — from writing efficient Dockerfiles to minimizing image size using multistage builds
• Observability: integration with Prometheus, OpenTelemetry, and structured logging via tracing
• Security: working with secrets, RBAC, network policies, and container-level security
• WebAssembly on Kubernetes — deploying Wasm modules in a cluster using wasmCloud and Krustlet

Who is this book for?

The book is aimed at a wide range of professionals:

• Rust developers looking to master cloud technologies
• DevOps engineers seeking ways to improve service performance
• Architects designing high-load systems
• Anyone who wants to understand how Rust can improve the Kubernetes ecosystem

What will you learn?

• How to design microservices considering Rust's features (ownership, lifetimes, async/await)
• Ways to effectively manage configurations and secrets in Kubernetes
• Testing techniques: unit tests, integration tests, and in-cluster testing
• Methods for debugging and profiling Rust applications in containers
• Best practices for CI/CD for Rust services: GitHub Actions, GitLab CI, ArgoCD
• How to use WebAssembly for secure code execution in Kubernetes

Each chapter contains practical examples, ready-to-use templates, and links to code repositories. You won't just read theory — you'll be able to immediately apply the knowledge gained in real projects.

The book will become an indispensable assistant for those who want to build fast, reliable, and secure cloud services using the two most powerful tools of modern development — Rust and Kubernetes.