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Updated the multi-stage-builds Docker concept to include installing J… (#21206) 

Updated the multi-stage-builds Docker concept page to include a
prerequisite for Java. Also updated the link and screenshot for the
Spring Initializer to the latest version.
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Shelley Benhoff 2024-10-23 11:21:16 -04:00 committed by GitHub
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@ -57,10 +57,12 @@ In this hands-on guide, you'll unlock the power of multi-stage builds to create
1. [Download and install](https://www.docker.com/products/docker-desktop/) Docker Desktop. 1. [Download and install](https://www.docker.com/products/docker-desktop/) Docker Desktop.
2. Open this [pre-initialized project](https://start.spring.io/#!type=maven-project&language=java&platformVersion=3.3.0-M3&packaging=jar&jvmVersion=21&groupId=com.example&artifactId=spring-boot-docker&name=spring-boot-docker&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.spring-boot-docker&dependencies=web) to generate a ZIP file. Here’s how that looks: 2. [Download and install](https://www.oracle.com/java/technologies/downloads/) Java.
3. Open this [pre-initialized project](https://start.spring.io/#!type=maven-project&language=java&platformVersion=3.4.0-M3&packaging=jar&jvmVersion=21&groupId=com.example&artifactId=spring-boot-docker&name=spring-boot-docker&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.spring-boot-docker&dependencies=web) to generate a ZIP file. Here’s how that looks:
![A screenshot of Spring Initializr tool selected with Java 21, Spring Web and Spring Boot 3.3.0](images/spring-initializr.webp?border=true) ![A screenshot of Spring Initializr tool selected with Java 21, Spring Web and Spring Boot 3.4.0](images/multi-stage-builds-spring-initializer.webp?border=true)
[Spring Initializr](https://start.spring.io/) is a quickstart generator for Spring projects. It provides an extensible API to generate JVM-based projects with implementations for several common concepts — like basic language generation for Java, Kotlin, and Groovy. [Spring Initializr](https://start.spring.io/) is a quickstart generator for Spring projects. It provides an extensible API to generate JVM-based projects with implementations for several common concepts — like basic language generation for Java, Kotlin, and Groovy.
@ -70,7 +72,7 @@ In this hands-on guide, you'll unlock the power of multi-stage builds to create
For this demonstration, you’ve paired Maven build automation with Java, a Spring Web dependency, and Java 21 for your metadata. For this demonstration, you’ve paired Maven build automation with Java, a Spring Web dependency, and Java 21 for your metadata.
3. Navigate the project directory. Once you unzip the file, you'll see the following project directory structure: 4. Navigate the project directory. Once you unzip the file, you'll see the following project directory structure:
```plaintext ```plaintext
@ -107,7 +109,7 @@ In this hands-on guide, you'll unlock the power of multi-stage builds to create
contains most of the information needed to build a customized project. The POM is huge and can seem contains most of the information needed to build a customized project. The POM is huge and can seem
daunting. Thankfully, you don't yet need to understand every intricacy to use it effectively. daunting. Thankfully, you don't yet need to understand every intricacy to use it effectively.
4. Create a RESTful web service that displays "Hello World!". 5. Create a RESTful web service that displays "Hello World!".
Under the `src/main/java/com/example/spring_boot_docker/` directory, you can modify your Under the `src/main/java/com/example/spring_boot_docker/` directory, you can modify your