Services, Ingress, and Load Balancing in Kubernetes

A Beginner’s Guide to Exposing Applications in Kubernetes with Services, Ingress Controllers, and Traffic Routing

Master Kubernetes networking through Services, Ingress controllers, and load balancing. From ClusterIP to advanced traffic routing, learn to expose applications effectively.

Author:

Category: Kubernetes

Pages: 331

Language: English

Publication Date:

DSIN: LSPMYCSK22VB

About This Book

**Services, Ingress, and Load Balancing in Kubernetes: A Beginner's Guide to Exposing Applications** is the definitive resource for mastering Kubernetes networking fundamentals. This comprehensive guide transforms the complex world of Kubernetes Services from a source of confusion into a toolkit of powerful networking solutions. Written for developers, DevOps engineers, and system administrators, this book provides a systematic approach to understanding how applications communicate within Kubernetes clusters and connect to the external world. Starting with fundamental Service concepts, readers progress through practical implementations of ClusterIP, NodePort, and LoadBalancer Services, culminating in advanced Ingress controller configurations and sophisticated traffic routing strategies. The book emphasizes hands-on learning with real-world scenarios, complete YAML configurations, and kubectl commands that readers can execute in their own environments. Each chapter builds upon previous knowledge, ensuring a solid foundation in Kubernetes networking principles while addressing common challenges such as service discovery, load balancing, and application exposure. Key coverage includes detailed explanations of Service types and their appropriate use cases, comprehensive Ingress controller setup and configuration, advanced traffic routing techniques, troubleshooting methodologies, and integration patterns combining multiple Service types with Ingress resources. The appendices provide valuable reference materials including YAML templates, Helm charts, and troubleshooting commands for ongoing use. This practical guide bridges the gap between theoretical Kubernetes concepts and real-world application deployment, providing readers with the confidence and skills needed to design, implement, and maintain robust networking solutions in production environments. Whether you're deploying your first application or optimizing existing cluster networking, this book delivers the expertise needed to leverage Kubernetes Services effectively.

Quick Overview

Master Kubernetes networking through Services, Ingress controllers, and load balancing. From ClusterIP to advanced traffic routing, learn to expose applications effectively.

Key Topics Covered

  • Kubernetes Services fundamentals
  • ClusterIP Services
  • NodePort Services
  • LoadBalancer Services
  • Ingress controllers
  • Ingress resources
  • traffic routing
  • load balancing strategies
  • SSL/TLS termination
  • service discovery
  • network troubleshooting
  • YAML configuration
  • kubectl networking commands
  • production networking patterns

Who Should Read This Book

Software developers new to Kubernetes, DevOps engineers implementing container orchestration, system administrators managing Kubernetes clusters, cloud engineers working with microservices, technical architects designing cloud-native applications, students learning container orchestration technologies

Prerequisites

Basic understanding of containers and Docker, fundamental knowledge of Kubernetes pods and deployments, command-line interface experience, basic networking concepts, access to a Kubernetes cluster or local development environment

Table of Contents

| Chapter | Title | Page | | ------- | -------------------------------------------- | ---- | | Intro | Why Do We Need Services and Ingress? | 7 | | 1 | What is a Service in Kubernetes? | 22 | | 2 | ClusterIP Services (Default) | 39 | | 3 | NodePort Services | 59 | | 4 | LoadBalancer Services | 73 | | 5 | What is Ingress? | 90 | | 6 | Installing an Ingress Controller | 109 | | 7 | Creating an Ingress Resource | 126 | | 8 | Advanced Ingress Features | 144 | | 9 | Internal vs External Load Balancing | 165 | | 10 | Combining Ingress + Service Types | 183 | | 11 | Exposing a Sample App with All Three Methods | 202 | | 12 | Troubleshooting Services and Ingress | 225 | | App | YAML templates for Services and Ingress | 239 | | App | Helm chart for NGINX Ingress | 262 | | App | kubectl commands reference for networking | 282 | | App | Glossary of networking terms | 297 | | App | Minikube LoadBalancer workaround | 315 |

About This Publication

This comprehensive guide empowers readers to master Kubernetes networking through a systematic exploration of Services, Ingress controllers, and load balancing strategies. You'll develop practical skills in exposing applications, implementing traffic routing, and troubleshooting networking issues while building a solid theoretical foundation in Kubernetes networking principles. The book progresses from fundamental Service concepts to advanced Ingress configurations, ensuring you understand not just how to implement solutions, but when and why to choose specific approaches. Through hands-on examples, real-world scenarios, and detailed explanations, you'll gain the confidence to design and maintain robust networking architectures in production Kubernetes environments. By the end of this book, you'll have mastered the complete spectrum of Kubernetes networking tools, from basic ClusterIP Services to sophisticated multi-service Ingress configurations, enabling you to solve complex application exposure challenges with confidence and expertise.

Book Details

Format
PDF
File Size
1.7 MB
Chapters
12
Code Examples
99
Exercises
99
Difficulty Level
beginner
Reading Time
14-20

Special Features

• Hands-on examples with complete YAML configurations and kubectl commands • Real-world scenarios demonstrating practical application of concepts • Progressive learning approach building from basics to advanced topics • Comprehensive troubleshooting guide with common issues and solutions • Complete reference appendices including YAML templates and Helm charts • Step-by-step Ingress controller installation and configuration guides • Integration patterns for combining Services with Ingress controllers • Production-ready configurations and best practices • Detailed explanations of networking concepts with visual diagrams • Practical exercises to reinforce learning and build confidence

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Services, Ingress, and Load Balancing in Kubernetes