DevOps for Java Developers: A Practical Guide

The book "DevOps for Java Developers" is a practical guide that will help Java programmers master modern DevOps practices and integrate them into the development process. You will learn how to automate the build, testing, and deployment of Java applications using popular tools and approaches.

The book is divided into several logical sections, each dedicated to key aspects of DevOps:

• DevOps and CI/CD Basics: What is DevOps, why it is important for a Java developer. Building continuous integration and delivery pipelines using Jenkins, GitLab CI, and GitHub Actions.
• Containerization with Docker: Creating lightweight and reproducible environments for Java applications. Optimizing Dockerfile for Spring Boot, Micronaut, and other frameworks.
• Orchestration with Kubernetes: Deploying, scaling, and managing Java microservices in a cluster. Using ConfigMap, Secrets, Health Checks, and Ingress.
• Infrastructure as Code (IaC): Managing environments with Terraform and Ansible. Automating the creation of virtual machines and containers.
• Monitoring and Logging: Setting up Prometheus, Grafana, and the ELK stack for collecting metrics, logs, and alerting for Java applications.
• Security and Configuration Management: Using Vault, Kubernetes secrets, and secure password storage.

The book is aimed at Java developers of any level — from Junior to Senior — who want to understand how DevOps practices help deliver code to production faster and more reliably. Basic knowledge of Java and the command line is sufficient for reading.

Special attention is paid to practical examples and ready-made scenarios. Each chapter contains step-by-step instructions, code snippets, and screenshots. You will learn how to:

• Set up automatic build and testing on every commit.
• Package Java applications into minimal-size Docker images.
• Deploy microservices in Kubernetes from scratch.
• Monitor performance and find bottlenecks.
• Ensure fault tolerance and scaling.

The book "DevOps for Java Developers" will become your reliable assistant in mastering modern development and operations practices. After reading it, you will be able not only to write code but also to confidently manage its lifecycle from commit to production.