JavaScript (Node.js) and Kubernetes: From Development to Production

This book is a practical guide for JavaScript developers who want to master Kubernetes and learn how to professionally deploy their Node.js applications in a production environment. The author will sequentially guide you from basic containerization concepts to complex microservice orchestration scenarios.

What this book is about

The book covers the full lifecycle of a Node.js application in Kubernetes:

• Docker and Containerization Basics — creating optimized Docker images for Node.js, working with multi-stage builds, managing dependencies
• Kubernetes Architecture — Pods, Deployments, Services, ConfigMaps, and Secrets. How to properly design infrastructure for Node.js applications
• Deployment and Scaling — update strategies (Rolling Update, Blue/Green), horizontal scaling (HPA), resource management
• Working with State — connecting databases (PostgreSQL, MongoDB, Redis), PersistentVolume and StatefulSet
• Monitoring and Logging — setting up Prometheus, Grafana, ELK stack for Node.js applications
• CI/CD Pipelines — automating build and deployment with GitHub Actions and GitLab CI
• Advanced Patterns — Service Mesh (Istio), working with gRPC, GraphQL in Kubernetes, Serverless on KNative

Who this book is for

• Backend developers using Node.js who want to learn modern deployment practices
• Fullstack developers who want to understand how their applications work in production
• DevOps engineers specializing in the JavaScript ecosystem
• Team leads and architects implementing microservice architecture

What you will learn

After reading this book, you will be able to:

• Create lightweight Docker images for Node.js applications (up to 90% size reduction)
• Write YAML manifests for deploying complex microservice systems
• Configure automatic scaling under load
• Orchestrate seamless application updates without downtime
• Implement fault-tolerant architectures with load balancing
• Integrate monitoring and alerting for Node.js services

Why you should read it

Kubernetes has become the standard for deploying modern applications, but learning it often causes difficulties for JavaScript developers. This book is written specifically for those who think in the Node.js paradigm — with an emphasis on asynchronicity, the event loop, and the specifics of working with I/O. All code examples and configurations can be immediately applied in real projects. You will get not just theory, but ready-made solution templates for typical tasks that every developer faces when transitioning from a monolith to microservices.

Basic requirements: solid knowledge of JavaScript (ES6+) and experience working with Node.js (Express, Koa, or Fastify). Experience with Docker is desirable but not required — all necessary concepts are explained in detail in the first part of the book.