springboot 项目生成docker镜像

创建springboot项目

修改项目pom.xml文件

	<properties>
        <java.version>1.8java.version>
        <maven.compiler.source>8maven.compiler.source>
        <maven.compiler.target>8maven.compiler.target>
        <docker.image.prefix>demo-dockerdocker.image.prefix>
        
        <skipTests>trueskipTests>
    properties>
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	<build>
        <finalName>docker-cloud-demofinalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
                
                <executions>
                    <execution>
                        <goals>
                            <goal>repackagegoal>
                        goals>
                    execution>
                executions>
                <configuration>
                    <fork>truefork>
                    <addResources>trueaddResources>
                configuration>
            plugin>

            <plugin>
                <groupId>com.spotifygroupId>
                <artifactId>dockerfile-maven-pluginartifactId>
                <version>1.4.10version>
                <configuration>
                    <repository>${docker.image.prefix}/${project.artifactId}repository>
                    <buildArgs>
                        <JAR_FILE>target/${project.build.finalName}.jarJAR_FILE>
                    buildArgs>
                configuration>
            plugin>
        plugins>
    build>
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在src同级创建 Dockerfile 文件

Dockerfile文件配置

FROM  adoptopenjdk/openjdk8:jre8u-nightly
VOLUME /tmp
ARG JAR_FILE
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-jar","/app.jar"]
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创建一个测试controller

启动项目访问返回

执行项目编译

mvn clean package dockerfile:build
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注意: 执行项目生成镜像,默认连接的是本机docker服务的2375端口,如果本机未开通端口需要开通才能正常打包成镜像,如需要远程打包,需要添加环境变量DOCKER_HOST,并指向远程服务的2375端口.

DOCKER_HOST  tcp://192.168.2.104:2375
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编译完成

项目打包的镜像

启动镜像测试功能

访问数据