Gradle Jib 플러그인 - Gradle으로 Docker 컨테이너 이미지 빌더

curl https://start.spring.io/starter.tgz \
-d bootVersion=2.7.5 \
-d dependencies=web \
-d baseDir=spring-gradle-jib \
-d groupId=com.devkuma \
-d artifactId=devkuma-gradle-jib \
-d packageName=com.devkuma.hello \
-d applicationName=HelloApplication \
-d packaging=jar \
-d javaVersion=17 \
-d type=gradle-project | tar -xzvf -

package com.devkuma.hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@SpringBootApplication
public class HelloApplication {

	public static void main(String[] args) {
		SpringApplication.run(HelloApplication.class, args);
	}

	@RequestMapping("/")
	public String hello() {
		return "hello";
	}
}

plugins {

  //... 중간 생략 ...

  id 'com.google.cloud.tools.jib' version '3.2.0'
}

jib {
    from {
        image = "adoptopenjdk/latest"
    }
    to {
        image = "devkuma/hello-jib"
        tags = ["latest"]
        auth {
          username = 'devkuma'
          password = "xxxx"
        }
    }
    container {
        jvmFlags = ["-Xms128m", "-Xmx128m"]
    }
}

$ ./gradlew jib

% ./gradlew jib
Starting a Gradle Daemon, 1 busy and 3 stopped Daemons could not be reused, use --status for details

> Task :jib

Containerizing application to devkuma/gradle-jib, devkuma/gradle-jib...
Base image 'adoptopenjdk' does not use a specific image digest - build may not be reproducible
Using credentials from to.auth for devkuma/gradle-jib
The base image requires auth. Trying again for adoptopenjdk...
Using base image with digest: sha256:3f2982d13b40d8c6d56a3a736c4f6c51a3c99688c2b434a27ed5d1b5f3fbedfb

Container entrypoint set to [java, -Xms128m, -Xmx128m, -cp, @/app/jib-classpath-file, com.devkuma.hello.HelloApplication]

Built and pushed image as devkuma/gradle-jib, devkuma/gradle-jib
Executing tasks:
[==============================] 100.0% complete


BUILD SUCCESSFUL in 58s
3 actionable tasks: 1 executed, 2 up-to-date
user@AD02291831 spring-gradle-jib %