Java and Docker: Containerization of Applications

The book "Java and Docker: Containerization of Applications" is a comprehensive guide that will help developers of any level master the modern approach to packaging, delivering, and deploying Java applications. The author consistently guides the reader from Docker basics to advanced techniques specific to the Java ecosystem.

Who is this book for?

• Java developers who want to transition to container architecture;
• DevOps engineers working with the Java stack;
• Team Leads and architects planning to migrate monoliths to microservices;
• Students and beginners seeking to acquire an in-demand skill.

What you will learn from the book:

• How to install and configure a Docker environment for Java projects;
• Rules for creating efficient Dockerfiles for Spring Boot, Quarkus, Micronaut;
• Optimizing image size (multistage build, Alpine, distroless);
• Container orchestration with Docker Compose for development and testing;
• Integration with Maven/Gradle plugins (jib, docker-maven-plugin);
• Best security practices: minimizing vulnerabilities, managing secrets;
• Deployment to production: Docker Swarm and Kubernetes (basic level);
• CI/CD pipelines with GitLab CI and GitHub Actions for Java containers.

The book is built on real-world examples: from a simple REST service on Spring Boot to a distributed application with databases and message queues. Each example is accompanied by step-by-step instructions and ready-made configuration files.

Special attention is paid to typical mistakes when containerizing Java applications: memory issues, time zones, logging, and network settings. You will learn to avoid them at the design stage.

After reading, you will be able to independently containerize any Java project, set up automatic builds and deployments, and confidently use Docker in everyday development. This is a practical tool that will save you weeks of studying documentation and experimentation.

The book is suitable both for individual study and for use as a reference within a team. All examples are available in the author's repository on GitHub.