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  • Book Overview & Buying Docker and Kubernetes for Java Developers
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Docker and Kubernetes for Java Developers

Docker and Kubernetes for Java Developers

By : Jaroslaw Krochmalski, Krochmalski
3.5 (4)
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Docker and Kubernetes for Java Developers

Docker and Kubernetes for Java Developers

3.5 (4)
By: Jaroslaw Krochmalski, Krochmalski
Buy this Book

Overview of this book

Imagine creating and testing Java EE applications on Apache Tomcat Server or Wildfly Application server in minutes along with deploying and managing Java applications swiftly. Sounds too good to be true? But you have a reason to cheer as such scenarios are only possible by leveraging Docker and Kubernetes. This book will start by introducing Docker and delve deep into its networking and persistent storage concepts. You will then proceed to learn how to refactor monolith application into separate services by building an application and then packaging it into Docker containers. Next, you will create an image containing Java Enterprise Application and later run it using Docker. Moving on, the book will focus on Kubernetes and its features and you will learn to deploy a Java application to Kubernetes using Maven and monitor a Java application in production. By the end of the book, you will get hands-on with some more advanced topics to further extend your knowledge about Docker and Kubernetes.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
Introduction to Docker
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Introduction to Docker
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The idea behind Docker
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Virtualization and containerization compared
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Docker concepts - images and containers
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Additional tools
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Installing Docker
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Summary
2
Networking and Persistent Storage
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Networking and Persistent Storage
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Networking
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Networking commands
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Creating and inspecting a network
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Connecting a container to the network
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Exposing ports and mapping ports
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Persistent storage
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Volume-related commands
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Creating a volume
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Removing a volume
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Volume drivers
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Summary
3
Working with Microservices
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Working with Microservices
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An introduction to microservices
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Monolithic versus microservices
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Maintaining data consistency
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The Docker role
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Kubernetes' role
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When to use the microservice architecture
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Summary
4
Creating Java Microservices
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Creating Java Microservices
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Introduction to REST
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REST in Java
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Coding the Spring Boot microservice
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Running the application
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Making calls
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Spring Initializr
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Summary
5
Creating Images with Java Applications
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Creating Images with Java Applications
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Dockerfile
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Dockerfile instructions
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Summary
6
Running Containers with Java Applications
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Running Containers with Java Applications
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Starting and stopping containers
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Container running modes
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Monitoring containers
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Restart policies
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Runtime constraints on resources
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Running with Maven
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Summary
7
Introduction to Kubernetes
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Introduction to Kubernetes
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Why do we need Kubernetes?
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Basic Kubernetes concepts
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Summary
8
Using Kubernetes with Java
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Using Kubernetes with Java
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Installing Minikube
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Installing kubectl
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Deploying on the Kubernetes cluster
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Minikube addons
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Cleaning up
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Summary
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Working with the Kubernetes API
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Working with the Kubernetes API
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API versioning
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Authentication
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Authorization
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Admission control
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Using the API
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Swagger docs
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Summary
10
Deploying Java on Kubernetes in the Cloud
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Deploying Java on Kubernetes in the Cloud
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Benefits of using the cloud, Docker, and Kubernetes
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Installing the tools
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Configuring Amazon AWS
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Creating an administrative user
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Creating the cluster
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Summary
11
More Resources
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More Resources
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Docker
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Kubernetes

Working with Microservices

After reading the previous two chapters, you should now have an understanding of the Docker architecture and its concepts. Before we go further on our Java, Docker, and Kubernetes journey, let's get to know the concept of microservices.

By reading this chapter, you will find out why a transition to microservices and cloud development is necessary and why monolithic architecture is not an option anymore. The microservices architecture is also where Docker and Kubernetes will be especially useful.

This chapter will cover the following topics:

  • An introduction to microservices and comparison to a monolithic architecture
  • How Docker and Kubernetes fits into the microservices world
  • When to use microservices architecture

Before we actually create the Java microservice and deploy it using Docker and Kubernetes, let's start with an explanation of the...

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