The complete guide to running Java in Docker and Kubernetes

If you need to learn how to run, tune, and maintain JVM applications that run in Docker and/or Kubernetes then this is the course for you.

This course is very different from other Java/Docker/Kubernetes courses. It focuses on all the skills that you need to succeed in production.

All of the examples are in Java but the content is applicable for any JVM language including Scala, Groovy, and Kotlin.

We’ll start with introductions for Docker and Kubernetes then we’ll get into the fun stuff. We’ll learn:

What a container is under the covers

Linux cgroups

Linux namespaces

Then we will go into how the JVM and your Java application behave differently in Kubernetes when running inside cgroups and namespaces. We’ll cover:

JVM ergonomics

How CPU Shares and Quota work

How Kubernetes manages CPU and Memory

Then we will teach you all the techniques needed to build production–ready images:

Selecting a base image

JDK vs JRE based images

Multi–stage Docker builds

GraalVM

Class data sharing

Ahead of time compilation

We will experiment with different JVM versions and settings.

By the end of this course you’ll know how to:

Build a production–ready image

Select between using CPU limits, quotas, or both in Kubernetes