해당 공간에 Dockerfile 및 test.jar 준비
FROM openjdk:11
ARG JAR_FILE=test.jar
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-jar","/app.jar"]
sudo docker build -t ec2/spring-server .
sudo docker run -d --name spring_server -p 8080:8080 ec2/spring-server
sudo docker logs -f spring-server