In this article, we will learn how to dockerize a spring boot 3 application. If this is something you’re unfamiliar with, no worries, we’ll go step-by-step and build the application from scratch. You can find a video below with my step-by-step process. youtube https://www.youtube.com/watch?v=TWlrwkUZgqE&feature=youtu.be&embedable=true&transcript=true Let’s dive straight into the steps and code create project add web dependency create controller pkg and class HelloController HelloController package com.example.demo.controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class HelloController { @GetMapping("/hello") public String sayHello() { return "Hello World"; } } run the application check whether working or not stop application run application as maven clean run application as mvn install refresh project and inside target you will see the jar file go to exact location of jar file on file system and open command prompt and try to run the jar file stop the application create Dockerfile Dockerfile FROM eclipse-temurin:17-jdk-alpine VOLUME /tmp ADD target/SpringBoot3Docker-0.0.1-SNAPSHOT.jar SpringBoot3Docker-0.0.1-SNAPSHOT.jar ENTRYPOINT ["java","-jar","/SpringBoot3Docker-0.0.1-SNAPSHOT.jar"] go to exact location of Dockerfile on file system open command prompt and run below command to create image >docker build -t springbootdocker:latest . check whether docker image created or not >docker images run the docker image >docker run -p 3033:8080 springbootdocker The lead image for this article was generated by HackerNoon's AI Image Generator via the prompt "spring boot".
