Maven项目如何打包成Docker镜像？三种常用插件详解

<build>
    <plugins>
        <plugin>
            <groupId>com.spotify</groupId>
            <artifactId>docker-maven-plugin</artifactId>
            <version>1.2.2</version>
            <configuration>
                <imageName>${project.artifactId}:${project.version}</imageName>
                <dockerDirectory>${project.basedir}/src/main/docker</dockerDirectory>
                <resources>
                    <resource>
                        <targetPath>/</targetPath>
                        <directory>${project.build.directory}</directory>
                        <include>${project.build.finalName}.jar</include>
                    </resource>
                </resources>
            </configuration>
        </plugin>
    </plugins>
</build>

# 使用官方的 Java 8 镜像作为基础镜像
FROM openjdk:8-jdk-alpine

# 设置工作目录
WORKDIR /app

# 将打包好的 JAR 文件复制到容器中
COPY target/myapp-0.0.1-SNAPSHOT.jar app.jar

# 暴露端口
EXPOSE 8080

# 启动应用
ENTRYPOINT ["java", "-jar", "app.jar"]

mvn clean package docker:build

docker run -p 8080:8080 myapp:0.0.1-SNAPSHOT

<build>
    <plugins>
        <plugin>
            <groupId>com.google.cloud.tools</groupId>
            <artifactId>jib-maven-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>
                <to>
                    <image>myapp:${project.version}</image>
                </to>
            </configuration>
        </plugin>
    </plugins>
</build>

mvn clean package jib:dockerBuild

docker run -p 8080:8080 myapp:0.0.1-SNAPSHOT

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <image>
                    <name>myapp:${project.version}</name>
                </image>
            </configuration>
        </plugin>
    </plugins>
</build>

mvn spring-boot:build-image

docker run -p 8080:8080 myapp:0.0.1-SNAPSHOT