How to set environment variables in Jenkins

Question

I would like to be able to do something like   AOEU   echo aoeu    and have Jenkins set AOEU aoeu   The Environment Variables section in Jenkins doesn t do that  Instead  it sets AOEU    echo aoeu     How can I get Jenkins to evaluate a shell command and assign the output to an environment variable   Eventually  I want to be able to assign the executor of a job to an environment variable that can be passed into or used by other scripts

User · Answer

For some reason sudo su - jenkins does not log me to jenkins user  I ended up using different approach   I was successful setting the global env variables using using jenkins config xml at  var lib jenkins config xml  installed in Linux  RHEL  - without using external plugins   I simply had to stop jenkins add then add globalNodeProperties  and then restart   Example  I m defining variables APPLICATION ENVIRONMENT and SPRING PROFILES ACTIVE to continious integration below    lt  xml version  1 0  encoding  UTF-8   gt   lt hudson gt      lt globalNodeProperties gt       lt hudson slaves EnvironmentVariablesNodeProperty gt         lt envVars serialization  custom  gt           lt unserializable-parents  gt           lt tree-map gt             lt default gt               lt comparator class  hudson util CaseInsensitiveComparator   gt             lt  default gt             lt int gt 2 lt  int gt             lt string gt APPLICATION ENVIRONMENT lt  string gt             lt string gt continious integration lt  string gt             lt string gt SPRING PROFILES ACTIVE lt  string gt             lt string gt continious integration lt  string gt           lt  tree-map gt         lt  envVars gt       lt  hudson slaves EnvironmentVariablesNodeProperty gt     lt  globalNodeProperties gt   lt  hudson gt

User · Answer

Try Environment Script Plugin  GitHub  which is very similar to EnvInject  It allows you to run a script before the build  after SCM checkout  that generates environment variables for it  E g     and in your script  you can print e g  FOO bar to the standard output to set that variable   Example to append to an existing PATH-style variable   echo PATH unique identifier  usr local bin   So you re free to do whatever you need in the script - either cat a file  or run a script in some other language from your project s source tree  etc

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You can try something like this  stages           stage  Build                 environment                        AOEU  sh  returnStdout  true  script   echo aoeu   trim                                 steps                   sh  env                  sh  echo  AOEU

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This is the snippet to store environment variable and access it    node      withEnv   ENABLE TESTS true    DISABLE SQL false            stage  Select Jenkinsfile               echo  Enable test     env DEVOPS SKIP TESTS            customStep script  this                  Note  The value of environment variable is coming as a String  If you want to use it as a boolean then you have to parse it using Boolean parse env DISABLE SQL

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In my case  I had configure environment variables using the following option and it worked-  Manage Jenkins - gt  Configure System - gt  Global Properties - gt  Environment Variables - gt  Add

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EnvInject Plugin aka  Environment Injector Plugin  gives you several options to set environment variables from Jenkins configuration   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             More details about each method could be found in build-in help         Unfortunately you can t do the same from Script Content as it states      Execute a script file aimed at setting an environment such as creating   folders  copying files  and so on  Give the script file content   You   can use the above properties variables   However  adding or overriding   environment variables in the script doesn t have any impacts in the   build job

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In my case  I needed to add the JMETER HOME environment variable to be available via my Ant build scripts across all projects on my Jenkins server  Linux   in a way that would not interfere with my local build environment  Windows and Mac  in the build xml script  Setting the environment variable via Manage Jenkins - Configure System - Global properties was the easiest and least intrusive way to accomplish this  No plug-ins are necessary       The environment variable is then available in Ant via    lt property environment  env    gt   lt property name  jmeter home  value    env JMETER HOME     gt    This can be verified to works by adding    lt echo message  JMeter Home    jmeter home    gt    Which produces      JMeter Home     jmeter

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We use groovy job file   description     steps       environmentVariables           envs PUPPETEER SKIP CHROMIUM DOWNLOAD  true

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There is Build Env Propagator Plugin which lets you add new build environment variables  e g        Any successive Propagate build environment variables step will override previously defined environment variable values

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Normally you can configure Environment variables in Global properties in Configure System   However for dynamic variables with shell substitution  you may want to create a script file in Jenkins HOME dir and execute it during the build  The SSH access is required  For example    Log-in as Jenkins  sudo su - jenkins or sudo su - jenkins -s  bin bash Create a shell script  e g    echo  export VM NAME   JOB NAME    gt    load env sh echo  export AOEU   echo aoeu    gt  gt    load env sh chmod 750   load env sh  In Jenkins Build  Execute shell   invoke the script and its variables before anything else  e g   source   load env sh

User · Answer

You can use Environment Injector Plugin to set environment variables in Jenkins at job and node levels  Below I will show how to set them at job level    From the Jenkins web interface  go to Manage Jenkins  gt  Manage Plugins and install the plugin       Go to your job Configure screen Find Add build step in Build section and select Inject environment variables Set the desired environment variable as VARIABLE NAME VALUE pattern  In my case  I changed value of USERPROFILE variable     If you need to define a new environment variable depending on some conditions  e g  job parameters   then you can refer to this answer

User · Answer

The simplest way  You can use EnvInject plugin to injects environment variables at build startup  For example     How you know it s working

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This can be done via EnvInject plugin in the following way    Create an  Execute shell  build step that runs   echo AOEU   echo aoeu   gt  propsfile  Create an Inject environment variables build step and set  Properties File Path  to propsfile    Note  This plugin is  mostly  not compatible with the Pipeline plugin

User · Answer

You can use either of the following ways listed below    Use Env Inject Plugin for creating environment variables  Follow this for usage and more details https   github com jenkinsci envinject-plugin   Navigate below and can add     Manage Jenkins -  Configure System -  Global Properties -  Environment Variables -  Add

[jenkins] How to set environment variables in Jenkins?

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