Introduction to Docker for Java Developers

1h 23mAdvanced2022-05-23

Authors

Mary Ellen Bowman

25+ years of full life-cycle software development experience

Course details

Docker—a leading software container platform—can simplify the overall application delivery experience by providing a common platform for collaboration. Docker integrates seamlessly with existing tool chains, making it easier to deliver software rapidly if you’re running a Java application. In this course, instructor Mary Ellen Bowman helps you discover how to get started with Docker, with tips and tricks tailored specifically for Java developers working with the platform.

Learn how the Docker engine provides an easy-to-build runtime environment, a must-have for Java developers. Explore the magic of using Docker to build and run a java application without installing Maven, Tomcat, or the required version of Java. Along the way, Mary gives you pointers on best practices for containerization and using dockerfile alternatives such as Cloud Native Buildpacks and plugins for Google Jib and Spring Boot.

Skills covered

DockerVirtualizationJavaOraclePersonaProgramming LanguagesNetwork and System AdministrationSoftware Development

Concepts

0. Introduction

01 - Zero to Zero to Hero
02 - What you should know

1. Getting Started

03 - Imagine building and launching a Java app without Java
04 - Installing Docker Desktop
05 - Building, deploying, and launching the Java app
06 - Scaffolding Java applications with Docker

2. Understanding Docker

07 - Understanding containerization
08 - Comparing images to containers
09 - Writing Dockerfiles
10 - Discover the Docker CLI
11 - Learn Dockerfile instructions
12 - Convert code to a Docker image
13 - Challenge - Modify Dockerfile to remove Forever.java
14 - Solution - Modify Dockerfile to remove Forever.java

3. Containerization Best Practices

15 - Layering in Docker images
16 - Building multistage Docker images
17 - Specify volumes and ports
18 - Docker registry
19 - Container orchestration with Docker Compose

4. Dockerfile Alternatives

20 - Ditching the Dockerfile
21 - Cloud Native Buildpacks
22 - Spring Boot Docker plugin
23 - The Google Jib plugin

Conclusion

24 - Next steps