Java and Kubernetes: Developing and Deploying Microservice Applications

This book is a practical guide to creating, deploying, and managing Java applications in a Kubernetes environment. You will learn how to transform a monolithic Java application into a set of microservices, package them into Docker containers, and run them in a Kubernetes cluster.

What this book is about

The book covers the full lifecycle of a Java application in a cloud infrastructure:

• Basics of containerizing Java applications with Docker
• Kubernetes architecture: Pods, Services, Deployments, ConfigMaps, Secrets
• Building and optimizing Docker images for Java (JLink, Jib, layered images)
• Setting up CI/CD pipelines for automated deployment
• Monitoring and logging: Prometheus, Grafana, ELK Stack
• Security: RBAC, Network Policies, Pod Security Standards
• Scaling: Horizontal Pod Autoscaler, Cluster Autoscaler
• Working with databases in Kubernetes: StatefulSets, PersistentVolumes

Who this book is for

• Java developers who want to master modern approaches to deployment and orchestration
• DevOps engineers working with Java stacks who want to deepen their Kubernetes knowledge
• Software architects designing microservice systems in Java
• Team leads and technical managers making infrastructure decisions

What you will learn

• How to properly containerize Java applications (Spring Boot, Quarkus, Micronaut)
• How to configure automatic scaling and self-healing of services
• How to organize seamless deployment (Rolling Update, Blue/Green, Canary)
• How to manage configuration and secrets in Kubernetes
• How to set up monitoring and alerting for Java microservices
• How to optimize the performance of Java applications in containers

The book contains many practical examples and ready-to-use YAML manifests. All examples have been tested on current versions of Java 17+ and Kubernetes 1.28+. You will learn not just to run applications, but to build fault-tolerant, scalable production systems.

This is not just a theoretical introduction — it is a practical guide that will help you confidently work with Kubernetes in real-world Java projects.