스프링부트3.0 도커 이미지 빌드

먼저
스프링 애플리케이션을 만든다 아무거나 간단하게
그다음
./mvnw clean package

Dockerfile에는

FROM eclipse-temurin:17-jdk-alpine
VOLUME /tmp
ARG EXTRACTED=/workspace/app/target/extracted
COPY ${EXTRACTED}/dependencies/ ./
COPY ${EXTRACTED}/spring-boot-loader/ ./
COPY ${EXTRACTED}/snapshot-dependencies/ ./
COPY ${EXTRACTED}/application/ ./
ENTRYPOINT ["java","org.springframework.boot.loader.JarLauncher"]

당연히 환경에 맞춰서 변경시켜줘야함

docker build -t [도커이미지].

메이븐을 사용한다면
<build>
   <plugins>
       <plugin>
           <groupId>com.spotify</groupId>
           <artifactId>dockerfile-maven-plugin</artifactId>
           <version>1.4.8</version>
           <configuration>
               <repository>myorg/${project.artifactId}</repository>
           </configuration>
       </plugin>
   </plugins>
</build>