Java(SpringBoot)项目打包(构建)成Docker镜像的几种常见方式

mvn spring-boot:build-image

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.toemail.smtp.ToEmailApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>com.google.cloud.tools</groupId>
                <artifactId>jib-maven-plugin</artifactId>
                <version>3.3.1</version>
                <configuration>
                    <!--from节点用来设置镜像的基础镜像，相当于Docerkfile中的FROM关键字-->
                    <from>
                        <!--基础镜像名称(建议使用国内公开镜像，下载速度快，更稳定) -->
                        <image>java:8u172-jre-alpine</image>
                    </from>
                    <to>
                        <!--镜像名称和tag，使用了mvn内置变量${project.version}，表示当前工程的version-->
                        <image>demo:${project.version}</image>
                    </to>
                    <!--容器相关的属性-->
                    <container>
                        <!--jvm内存参数-->
                        <jvmFlags>
                            <jvmFlag>-Xms4g</jvmFlag>
                            <jvmFlag>-Xmx4g</jvmFlag>
                        </jvmFlags>
                        <!--要暴露的端口-->
                        <ports>
                            <port>8899</port>
                        </ports>
                    </container>
                </configuration>
            </plugin>

mvn compile com.google.cloud.tools:jib-maven-plugin:2.3.0:dockerBuild

<to>
  <image>registry.cn-qingdao.aliyuncs.com/jibjava/jibfirst</image>
</to>

		<from>
            <image>registry.cn-qingdao.aliyuncs.com/jibjava/jibfirst</image>
            <auth>
              <username>阿里云账号</username>
              <password>阿里云密码</password>
            </auth>
          </from>

FROM c9katayama/java8:latest
# 创建目录
RUN mkdir -p /dashboard
# 拷贝文件
COPY dashboard.jar /dashboard/dashboard.jar
# 暴露端口
EXPOSE 8099
# 启动命令
CMD ["java", "-jar", "/dashboard/dashboard.jar"]

			<plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>0.4.11</version>
                <dependencies>
                    <dependency>
                        <groupId>javax.activation</groupId>
                        <artifactId>javax.activation-api</artifactId>
                        <version>1.2.0</version>
                        <scope>compile</scope>
                    </dependency>
                </dependencies>
                <configuration>
                    <imageName>${docker.image.prefix}/${project.artifactId}</imageName>
                    <dockerDirectory>src/main/docker</dockerDirectory>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                    <imageTags>
                        <imageTag>${project.version}</imageTag>
                        <imageTag>latest</imageTag>
                    </imageTags>
                </configuration>
            </plugin>

		<plugin>
            <groupId>com.spotify</groupId>
            <artifactId>docker-maven-plugin</artifactId>
            <version>1.0.0</version>
            <configuration>
                <imageName>${project.artifactId}:${project.version}</imageName>
                <!-- 指定 Dockerfile 路径-->
                <dockerDirectory>${basedir}/docker</dockerDirectory> 
                <!-- 这里是复制 jar 包到 docker 容器指定目录配置，也可以写到 Docokerfile 中 -->
                <resources>
                    <resource>
                        <targetPath>/ROOT</targetPath>
                        <directory>${project.build.directory}</directory>
                        <include>${project.build.finalName}.jar</include>
                    </resource>
                </resources>
            </configuration>
        </plugin>

mvn package