How to get UID in Jenkins Pipeline job

Question

How to access UID variable in Jenkins pipeline job?

I got null when do:

pipeline {

    agent any
    environment {
        def userId = "${env.UID}";
    }
    stages {
        stage('Print UID') { 
            steps {
                script {
                   echo "${userId}"
                }
            }
        }
    }
}

Jenkins is hosted on Ubuntu 16.04

Answer 1

This code creates a local variable in the scope of the environment block.

From the documentation the environment dir uses "setter" style properties. You can change your code to:

environment {
    userId = "${env.UID}";
} 

This will make the environment variable userId available in the other parts of the pipeline (could be proven by performing a sh 'env' or something similar).

But, before that, I am not sure where "${env.UID}" comes from. If it is a plugin you have, then it will work great. If not, then you will have to figure out how to get the value you are expecting.

Answer 2

you can use this code.

environment {
    userId = sh(script: "id -u ${USER}", returnStdout: true)
}