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mavenjenkinsjenkins-pipelinepom.xml

How to get/fetch the environment variables set in Jenkins pipeline into our maven pom.xml

I have couple of Environment variables set using Jenkins pipeline.

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I want to fetch the values of these environment variables in my maven pom.xml file, where I want to pass them as buildArgs to docker-maven-plugin, which will be again called in a dockerfile.

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How to call those environment variables in my pom.xml?

I tried ${env.JENKINS_USER_NAME} as well as %JENKINS_USER_NAME% but nothing seem to work.

Use case: I will be running my Jenkins pipeline job to build my project, which will eventually create an docker image in Stage-1 and then run the docker container in Stage-2 (which will run the tests as well internally).

Problem: My Jenkins job can be triggered based on user selection of specific testng.xml file as show below:

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When triggered once, it is working fine but if we triggered for second time without cleaning the workspace, then it is throwing error like

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I am assuming that it might be a problem with permission, as I am mounting volume to map container test-output directory with Jenkins host-VM directory

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How can I get the environment variables in my POM?

Solution

  • Define the values as maven properties (with defaults), then you can override them on the maven command line with properties from the Jenkins environment variable populated from the drop-down.

    pom.xml:

    <properties>
        <gid>default-gid</gid> 
        <uid>default-uid/<uid> 
        <uname>default-uname</uname> 
</properties>

<configuration>
    <buildArgs>
        <GID>${gid}</GID> 
        <UID>${uid}/<UID> 
        <UNAME>${uname}</UNAME> 
    </buildArgs> 
</configuration>

    SH EXEC CMD:

    mvn -Dgid=my-gid -Duid=my-uid -Duname=my-uname clean system-test:latest ${TestSuiteFiles}