Kube By Example - Building Spring Boot Docker Images

Name: Kube By Example - Building Spring Boot Docker Images
Rating: 4.6 (225 reviews)

Learn how to build Docker Images for your Spring Boot Applications

Created byJohn Thompson • 500,000+ Enrollments Worldwide, Spring Ahead Code Academy

Last updated 5/2022

English

English [Auto],

What you'll learn

Learn how to build a Docker Image for a Spring Boot Application
Learn how to build a Spring Boot Layered Docker Image to save resources
Build Docker Images using Apache Maven
Push Docker Images to Docker Hub using Maven

Course content

4 sections • 15 lectures • 1h 0m total length

Course Introduction0:52
Discover how to build Spring Boot Docker images from a Dockerfile, package a deployable jar, and run containers while setting up your environment and exploring build tools.
Introduction to Kubernetes by Example3:13
Learn Kubernetes by example (KBE) and containerize a Spring Boot app with Docker, then deploy on Kubernetes and orchestrate Spring Boot microservices with a gateway.
Setting Up Your Development Environment2:48
Set up a development environment for building Spring Boot Docker images with Java 11 or higher, ensuring the JDK is installed, Docker engine runs, and Maven 3.6+ is available.

Introduction1:00
Deploy a ready-made Spring Boot project with Docker by building a Maven project into a Docker image and running it, step by step.
Spring Boot Project Code Review7:43
Review the Spring Boot app, exploring beer rest endpoints (get, update, delete by id; get by upc) in Spring MVC, plus service, repository, map struct mappers, and H2 in-memory data.
Creating Docker File6:12
Create a basic docker file for a spring boot project on the docker base branch, using a slim openjdk base and a fat jar with java -jar.
Building and Running Docker Image4:44
Build a Spring Boot app inside a docker image from the project root after running Maven package, then run with port 8080 to verify startup and readiness.

Introduction1:38
Learn how Docker image layers work and how Spring Boot supports a layered approach to separate dependencies from application code, improving deployment efficiency in production containerized environments.
Overview and Maven Configuration5:18
Enable Spring Boot layered builds by configuring the Maven plugin to create immutable layers for dependencies, using the Spring Boot Layer Tools and a multi-stage Docker build for efficient deployments.
Multi-Stage Docker File7:43
Use a multi-stage docker file to build a layered spring boot image with a builder, extracting layers and copying dependencies, application, and entry point into a slim final image.

Introduction0:57
Configure Maven to produce Docker images directly from your Spring Boot builds. Learn to automate image creation with a Maven plugin for use in a CIC-type environment.
Introducing Docker Maven Plugin9:06
Explore the Docker Maven plugin for building Docker images from a Dockerfile, and note the deprecation of the Fabric8 plugin and the active, lighter Maven Docker tool.
Using Properties in Builds4:41
Demonstrates using Maven properties to drive Docker image naming and tagging, replacing hard-coded names with project version and final name, enabling versioned and latest tags during builds.
Pushing to Docker Hub3:58
push spring boot docker images to docker hub using a maven plugin, configure credentials, authenticate, build, and push with latest and snapshot tags.
Bonus Lecture0:20

Requirements

Some Spring Boot and Java Experience
Basic Knowledge of Docker
Some knowledge of Apache Maven

Description

In this course you will learn how easy it is to build Docker images for your Spring Boot Applications.

The uses a simple Spring Boot Application which provides a simple RESTful API.

This application is built into an executable JAR and place inside of a Docker image.

You will learn how to write a Docker file, which will use a base Java image and then copy your Spring Boot executable JAR into the new Docker Image.

Using the command line, you will instruct Docker to build your Spring Boot Docker Image.

Once the Docker image is created, you can instruct Docker to run the image in a new container. Once running, you can use Postman to access the RESTful API in the Spring Boot application.

You will learn how to build two different Docker Images. One Docker image is with the Spring Boot Application in a single JAR archive. The second Docker image will have the Spring Boot Application in layers. Using layers helps save disk space when the application is deployed.

To support CI builds, you can also configure Apache Maven to build your application and Docker image.

In the course, you will learn how to configure the Fabric8 Maven Docker Plugin to build the Spring Boot Application, and Docker image. You will also learn how to configure the plugin to push your Docker Image to Docker Hub.

Enroll today if you wish to see how easy it is to build Spring Boot Docker images!

Who this course is for:

Java and Spring Developers wishing to build Docker Images for their Spring Boot applications

Kube By Example - Building Spring Boot Docker Images

What you'll learn

Explore related topics

Course content

Introduction3 lectures • 7min

Building a Docker Image4 lectures • 20min

Building a Layered Docker Image3 lectures • 15min

Building Docker Images With Maven5 lectures • 19min

Requirements

Description

Who this course is for: