Introduction to Docker for Java Developers

Discover how to get started using Docker with tips and tricks tailored specifically for Java developers working with the platform.

Introduction

• Zero to Zero to Hero
• What you should know

1. Getting Started

• Imagine building and launching a Java app without Java
• Installing Docker Desktop
• Building, deploying, and launching the Java app
• Scaffolding Java applications with Docker

2. Understanding Docker

• Understanding containerization
• Comparing images to containers
• Writing Dockerfiles
• Discover the Docker CLI
• Learn Dockerfile instructions
• Convert code to a Docker image
• Challenge: Modify Dockerfile to remove Forever.java
• Solution: Modify Dockerfile to remove Forever.java

3. Containerization Best Practices

• Layering in Docker images
• Building multistage Docker images
• Specify volumes and ports
• Docker registry
• Container orchestration with Docker Compose

4. Dockerfile Alternatives

• Ditching the Dockerfile
• Cloud Native Buildpacks
• Spring Boot Docker plugin
• The Google Jib plugin

Conclusion

• Next steps