Set environment variables in Jenkins

Question

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I'm trying to make mu Jenkins evaluate a shell command and assign the output to an environment variable. Also, will it be possible to assign the executor of a job to an environment variable?

Answer 1

You can try something like this

stages {
        stage('Build') {
            environment { 
                    AOEU= sh (returnStdout: true, script: 'echo aoeu').trim()
                }
            steps {
                sh 'env'
                sh 'echo $AOEU'
            }
        }
    }

Comments

you made my day! Thanks!

Answer 2

You can use the EnvInject plugin. This plugin makes it possible to have an isolated environment for your jobs.

Use the plugin in the following way:

1. Create an "Execute shell" build step that runs:
2. echo AOEU=$(echo aoeu) > propsfile
3. Create an Inject environment variables build step and set "Properties File Path" to propsfile.

Answer 3

You can use environment injector plugin. First let me breif you about this plugin's properties:

• Removes inherited environment variables by the Jenkins Java process
• Injects environment variables at node (master/slave) startup
• Executes a setup script before or/and after a SCM checkout for a run
• Injects environment variables before or/and after a SCM checkout for a run
• Injects environment variables as a build step for a run
• Injects password values for a run
• Exports environment variables at the end of the build in order to to know the set of environment variables used for each build

1) Install the plugin (manage jenkins-> manage pligins->install environment injector plugin)

2) Go to your job -> configure

3) Find Add build step in Build section and select Inject environment variables

4) Set the desired environment variable as VARIABLE_NAME=VALUE pattern. In my case, I changed value of USERPROFILE variable

 

Answer 4

Add JMETER_HOME environment variable to be available via your Ant build scripts across all projects on your Jenkins server

Comments

Can you please explain a detail?

---

Hey! Check out @Omkar's, @Zoo's and @Neha's answer. It gives the entire explanation.

Answer 5

To add to @Omkar's answer, I would like to explain how to add the environment variable.

Manage Jenkins - Configure System - Global properties

Answer 6

Adding to @Omkar's and @Zoo's answer, 

The environment variable is then available in Ant via:

<property environment="env" />
<property name="jmeter.home" value="${env.JMETER_HOME}" />

This can be verified to works by adding:

<echo message="JMeter Home: ${jmeter.home}"/>

Which produces:

JMeter Home: ~/.jmeter

Answer 7

By selecting Inject environment variables to the build process you will get:

• Properties File Path
• Properties Content

• Script File Path

• Script Content

• and finally Evaluated Groovy script.

 Evaluated Groovy script gives you possibility to set environment variable based on result of executed command:

• with execute method:

    return [HOSTNAME_SHELL: 'hostname'.execute().text, 
        DATE_SHELL: 'date'.execute().text,
        ECHO_SHELL: 'echo hello world!'.execute().text
    ]

• or with explicit Groovy code:

    return [HOSTNAME_GROOVY: java.net.InetAddress.getLocalHost().getHostName(),
        DATE_GROOVY: new Date()

Answer 8

You can use the Build Env Propagator Plugin. This plugin lets you add new build environment variables, override a pre-defined and existing variables at each build step. Set of variables defined at a build step is carried over to the sub-sequent build steps. Any subsequent build step can override any variable defined by the previous build step.

Answer 9

Follow these steps:

1. Log-in as Jenkins: sudo su - jenkins or sudo su - jenkins -s /bin/bash

2. Create a shell script, e.g.:

   echo 'export VM_NAME="$JOB-NAME"' > ~/load_env.sh
   echo "export AOEU=$(echo aoeu)" >> ~/load_env.sh
   chmod 750 ~/load_env.sh
   

3. In Jenkins Build (Execute shell), invoke the script and its variables before anything else, e.g.

   source ~/load_env.sh

Answer 10

You can use groovy job file:

description('')
steps {
    environmentVariables {
        envs(PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: true)
    }
}

Answer 11

HI.

I hope this information may help you-how to Set environment variables in Jenkins

This can be done via the EnvInject plugin in the following way:

1. Create an "Execute shell" build step that runs:

   echo AOEU=$(echo aoeu) > propsfile
   

2. Create an Inject environment variables build step and set "Properties File Path" props file
   
   
   
   REGARDS,
   SRI

Answer 12

Hi,

You can try with the below code.

environment {
    SOME_NAME = "some value"
}

Then it can be accessed using the following syntax:

env.SOME_NAME

pipeline {
   agent none
   environment {
       field = 'some'
   }
   stages {
       stage ('Preparation') {
           agent { label 'master'}
           environment {
               JENKINS_PATH = sh(script: 'pwd', , returnStdout: true).trim()
           }
           steps {
               echo "Hello world"
               echo "PATH=${JENKINS_PATH}"
               sh 'echo "JP=$JENKINS_PATH"'
          }
      }
   }
}