不要把大型 JAR 包放进 Docker 镜像

~ ❯❯❯ docker history registry.domain.com/neptune:latestIMAGE           CREATED          CREATED BY                     SIZE44e77fa110e5    2 minutes ago    /bin/sh -c #(nop) COPY dir:…   65.5MB ...<missing>       8 months ago     /bin/sh -c set -ex;   if [ …   217MB...<missing>       8 months ago     /bin/sh -c #(nop) ADD file:…   55.3MB

<plugin>    <groupId>com.google.cloud.tools</groupId>    <artifactId>jib-maven-plugin</artifactId>    <version>1.6.1</version>    <configuration>        <from>            <image>openjdk:11.0.4-jre-slim</image>        </from>        <to>            <image>domain.com/${project.artifactId}:latest</image>            <!-- 可选项: 基于git提交创建标签 (通过git-commit-id插件): -->            <tags>                <tag>${git.commit.id}</tag>            </tags>        </to>        <container>            <jvmFlags>                <jvmFlag>-server</jvmFlag>            </jvmFlags>        </container>    </configuration>    <executions>        <execution>            <id>build-and-push-docker-image</id>            <phase>package</phase>            <goals>                <goal>build</goal>            </goals>        </execution>    </executions></plugin>

# 执行整个build生命周期，并将镜像推送到注册表中mvn package
# 只是创建和推送镜像mvn jib:build# 注意，`jib:build`运行在前台，而且不会在本地创建镜像# 直接与注册表交互。可以使用`docker pull`拉取创建好的镜像
# 通过Docker后台创建和推送镜像mvn jib:dockerBuild

~ ❯❯❯ docker history registry.domain.com/neptune:latestIMAGE          CREATED         CREATED BY                SIZE     COMMENTa759771eb008   49 years ago    jib-maven-plugin:1.6.1    1.22MB   classes<missing>      49 years ago    jib-maven-plugin:1.6.1    297kB    resources<missing>      49 years ago    jib-maven-plugin:1.6.1    64.6MB   dependencies...                         <missing>      8 months ago    /bin/sh -c set -ex; ...   217MB               ...<missing>      8 months ago    /bin/sh -c #(nop) ADD...  55.3MB

<plugin>    <groupId>org.apache.maven.plugins</groupId>    <artifactId>maven-deploy-plugin</artifactId>    <configuration>        <skip>true</skip>    </configuration></plugin><plugin>    <groupId>org.apache.maven.plugins</groupId>    <artifactId>maven-install-plugin</artifactId>    <configuration>        <skip>true</skip>    </configuration></plugin><plugin>    <groupId>org.apache.maven.plugins</groupId>    <artifactId>maven-jar-plugin</artifactId>    <!-- 可惜的是，这里不支持开关。    临时解决方案: 将default-jar绑定到一个不存在的phase -->    <executions>        <execution>            <id>default-jar</id>            <phase>none</phase>        </execution>    </executions></plugin>

docker run -p 1309:1309 --net=host \-e JAVA_TOOL_OPTIONS='-Xms1000M -Xmx1000M' \-v /home/phauer/dev/app/app-config.yml:/app-config.yml \registry.domain.com/app:latest \--spring.config.additional-location=/app-config.yml