Docker 추가 셋팅

1. docker build -t 등을 매번 하지 않기 위해 docker-maven plugin 추가

pom.xml 파일 참조

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.4.1</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.hyun</groupId>
	<artifactId>DockTest</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>DockTest</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web-services</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
			  	<groupId>io.fabric8</groupId>
			  	<artifactId>docker-maven-plugin</artifactId>
			  	<version>0.34.1</version>
			  	<configuration>
			  		<images>
			  			<image>
			  				<!-- 이미지를 만들 위치 -->
			  				<name>npre/springdockertest</name>
			  				<build>
			  				<!-- Dockerfile기본 위치는 src/main 이므로 프로젝트 베이스 폴더로 위치 지정(이것이 컨벤션임) -->
			  					<dockerFileDir>${basedir}</dockerFileDir>
			  					<filter>@</filter>
			  				</build>
			  			</image>
			  		</images>
			  	</configuration>
			  	<!-- mvn package 시 build 하도록 추가 설정 -->
			  	<executions>
			  		<execution>
			  			<id>docker-build</id>
			  			<phase>package</phase>
			  			<goals>
			  				<goal>build</goal>
		  				</goals>
			  		</execution>
		  		</executions>
		  	</plugin>
		</plugins>
	</build>

</project>

2. mvn clean package 로 이미지 생성

 

3. mvn docker:push 로 docker hub로 밀어넣기

 

4. 로컬에서 해당 이미지를 삭제하더라도 hub에 있으면 자동으로 pull 해와서 런 되는 상태 확인