Book Image

Docker and Kubernetes for Java Developers

By : Jarosław Krochmalski
Book Image

Docker and Kubernetes for Java Developers

By: Jarosław Krochmalski

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)
More Resources

Monitoring containers

There are some ways of monitoring running Docker containers. It can be viewing the log files, looking at the container events and statistics, and also inspecting container properties. Let's begin with the powerful logging features Docker has. Access to the log entries is crucial, especially if you have your container running in the detached runtime mode. Let's see what Docker can offer when it comes to a logging mechanism.

Viewing logs

Most applications output their log entries to the standard stdout stream. If the container is being run in the foreground mode, you will just see it in the console. However, when running a container in detached mode, you will see nothing but the container ID on...