Hello. Sorry that perhaps this is not the place to write. I have

Is it possible to do the same thing through pom as jib-cli ? about jib HOT 1 CLOSED

daromnik commented on May 26, 2024

Is it possible to do the same thing through pom as jib-cli ?

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daromnik commented on May 26, 2024

Ultimately, I achieved the desired result with the help of the following changes in the settings of the jib-maven-plugin plugin:

add dependency to the plugin jib-layer-filter-extension-maven - this is for managing layers when creating an image:

<dependencies>
    <dependency>
        <groupId>com.google.cloud.tools</groupId>
        <artifactId>jib-layer-filter-extension-maven</artifactId>
        <version>0.3.0</version>
    </dependency>
</dependencies>

Add extraDirectories so that fat jar formed by spring boot is included to the image:

<extraDirectories>
    <paths>
        <path>
            <from>target</from>
            <into>/app/classpath</into>
            <includes>*.jar</includes>
        </path>
    </paths>
</extraDirectories>

Then in pluginExtensions we delete the old jar that created jib and delete libs, because all libs are in our fat jar from spring:

<pluginExtensions>
    <pluginExtension>
        <implementation>com.google.cloud.tools.jib.maven.extension.layerfilter.JibLayerFilterExtension</implementation>
        <configuration implementation="com.google.cloud.tools.jib.maven.extension.layerfilter.Configuration">
            <filters>
                <filter>
                    <glob>/app/classpath/*.original.jar</glob>
                </filter>
                <filter>
                    <glob>/app/libs/*.jar</glob>
                </filter>
            </filters>
        </configuration>
    </pluginExtension>
</pluginExtensions>

And we add the correct entry point of our jar for spring (if we have spring boot >= 3.2, then the class will be different org.springframework.boot.loader.launch.JarLauncher):

<entrypoint>java,-cp,@/app/jib-classpath-file,org.springframework.boot.loader.JarLauncher</entrypoint>

As a result, fat jar will simply lie in /app/classpath folder.
If you do everything through jib-cli, then instead of fat jar there will be an unpacked jar in the /app folder.

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