使用 JIB 插件 Dockerizing 多模块 Spring Boot 应用程序

问题描述

我有一个 Spring boot 应用程序并使用 spotify 插件来Dockerize我的应用程序.所以，我将有一个像下面这样的 Dockerfile.

FROM jdk1.8:latest运行 mkdir -p/opt/servie复制目标/service.war/opt/serviceENV JAVA_OPTS="" \JAVA_ARGS=""CMD java ${JAVA_OPTS} -jar/opt/service/service.war ${JAVA_ARGS}

我遇到了 JIB，它看起来很酷.但是，努力让它发挥作用.

我在下面添加了 pom 条目.

<groupId>com.google.cloud.tools</groupId><artifactId>jib-maven-plugin</artifactId><version>0.9.6</version><配置><来自><image>jdk1.8:latest</image></来自><到><image>docker.hub.com/test/service</image></配置></插件>

mvn 编译 jib:build

我看到以下内容.

[INFO] 构建依赖层...[信息] 构建类层...[INFO] 构建资源层...

当我运行 docker 镜像时，它说 Jar 文件不存在.我有一个多模块 maven 项目，并希望在从父 pom 运行 mvn compile jib:build 时对多个模块进行 dockerize.对此有什么帮助吗?

解决方案

确实如此.JIB 不需要 Dockerfile 或 dockerd.

下面分享一个例子，你可以把它复制到你的 pom.xml 的 plugins 部分

<groupId>com.google.cloud.tools</groupId><artifactId>jib-maven-plugin</artifactId><version>0.9.7</version><配置><allowInsecureRegistries>true</allowInsecureRegistries><来自><image>gcr.io/distroless/java</image></来自><到><!-- 确保您已经在 Google Cloud Platform 上创建了一个项目，请参阅 https://cloud.google.com/container-registry/--><image>gcr.io/my-gcp-project/${project.artifactId}:${project.version}</image><credHelper>gcr</credHelper><容器><jvmFlags><jvmFlag>-Xms256m</jvmFlag><jvmFlag>-Xmx512m</jvmFlag><jvmFlag>-Xdebug</jvmFlag><jvmFlag>-XX:+UnlockExperimentalVMOptions</jvmFlag><jvmFlag>-XX:+UseCGroupMemoryLimitForHeap</jvmFlag></jvmFlags><mainClass>learnmake.microservices.RunApplication</mainClass><端口>8080</端口><!-- <端口>4000-4004/udp</端口>--></端口><format>OCI</format><!-- OR <format>Docker</format>--><useCurrentTimestamp>true</useCurrentTimestamp></容器></配置></插件>

有关更详细的示例，请参阅learnmake-microservices

I have a Spring boot Application and using spotify plugin to Dockerize my application.So, I will have a Dockerfile like the below one.

FROM jdk1.8:latest  

RUN mkdir -p /opt/servie

COPY target/service.war /opt/service

ENV JAVA_OPTS="" \
    JAVA_ARGS=""

CMD java ${JAVA_OPTS} -jar /opt/service/service.war ${JAVA_ARGS}

I came across JIB and it looks really cool. But, struggling to get it working.

I added the pom entry below.

<plugin>
        <groupId>com.google.cloud.tools</groupId>
        <artifactId>jib-maven-plugin</artifactId>
        <version>0.9.6</version>
        <configuration>
          <from>
            <image>jdk1.8:latest</image>
          </from>
          <to>
            <image>docker.hub.com/test/service</image>
          </to>
        </configuration>
      </plugin>

I see the following.

[INFO] Building dependencies layer...[INFO] Building classes layer...[INFO] Building resources layer...

When i run the docker image, it says, Jar file does not exist. I have a multi module maven project and would like to dockerize multiple module on running mvn compile jib:build from the parent pom. Any help on this?

解决方案

Yes indeed. JIB doesn't need Dockerfile or dockerd.

Sharing an example below, you can just copy it into plugins section of your pom.xml

<plugin>  
    <groupId>com.google.cloud.tools</groupId>  
    <artifactId>jib-maven-plugin</artifactId>  
    <version>0.9.7</version>  
    <configuration>  
    <allowInsecureRegistries>true</allowInsecureRegistries>  
    <from>  
        <image>gcr.io/distroless/java</image>  
    </from>  
    <to>  
    <!-- make sure you already have created a project at Google Cloud Platform, see https://cloud.google.com/container-registry/ -->  
        <image>gcr.io/my-gcp-project/${project.artifactId}:${project.version}</image>  
        <credHelper>gcr</credHelper>  
    </to>  
    <container>  
        <jvmFlags>  
            <jvmFlag>-Xms256m</jvmFlag>  
            <jvmFlag>-Xmx512m</jvmFlag>  
            <jvmFlag>-Xdebug</jvmFlag>  
            <jvmFlag>-XX:+UnlockExperimentalVMOptions</jvmFlag>  
            <jvmFlag>-XX:+UseCGroupMemoryLimitForHeap</jvmFlag>  
        </jvmFlags>  
        <mainClass>learnmake.microservices.RunApplication</mainClass>  
        <ports>  
            <port>8080</port>  
            <!-- <port>4000-4004/udp</port> -->  
        </ports>  
        <format>OCI</format>  
        <!-- OR <format>Docker</format> -->  
        <useCurrentTimestamp>true</useCurrentTimestamp>  
      </container>  
    </configuration>  
</plugin>   

for more detailed example, see learnmake-microservices

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