Book Image

Learning Spring Boot 3.0 - Third Edition

By : Greg L. Turnquist
Book Image

Learning Spring Boot 3.0 - Third Edition

By: Greg L. Turnquist

Overview of this book

Spring Boot 3 brings more than just the powerful ability to build secure web apps on top of a rock-solid database. It delivers new options for testing, deployment, Docker support, and native images for GraalVM, along with ways to squeeze out more efficient usage of existing resources. This third edition of the bestseller starts off by helping you build a simple app, and then shows you how to secure, test, bundle, and deploy it to production. Next, you’ll familiarize yourself with the ability to go “native” and release using GraalVM. As you advance, you’ll explore reactive programming and get a taste of scalable web controllers and data operations. The book goes into detail about GraalVM native images and deployment, teaching you how to secure your application using both routes and method-based rules and enabling you to apply the lessons you’ve learned to any problem. If you want to gain a thorough understanding of building robust applications using the core functionality of Spring Boot, then this is the book for you. By the end of this Spring Boot book, you’ll be able to build an entire suite of web applications using Spring Boot and deploy them to any platform you need.
Table of Contents (17 chapters)
1
Part 1: The Basics of Spring Boot
3
Part 2: Creating an Application with Spring Boot
8
Part 3: Releasing an Application with Spring Boot
12
Part 4: Scaling an Application with Spring Boot

Baking a Docker container

One of the fastest technologies to sweep the tech world has been Docker. If you haven’t heard of it, Docker is sort of like a virtualized machine but more lightweight.

Docker is built on the paradigm of shipping containers. Shipping containers, which are responsible for moving the bulk of the world’s goods on ships and trains, have a common shape. This means people can plan how to ship their products while knowing the containers handled by the entire world are all the same size and structure.

Docker is built on top of Linux’s libcontainer library, a toolkit that grants not a completely virtual environment, but instead a partially virtual one. It allows a container’s processes, memory, and network stack to be isolated from the host server.

Essentially, you install the Docker engine on all your target machines. From there, you are free to install any container, as needed, to do what you need to do.

Instead of wasting...