When I use my new shared library I cannot access environment variables for any src class which is executed either directly by the Jenkinsfile or via a var/*.groovy script. This problem persists even when I add withEnv to the var/*groovy script.
What is the trick to get environment variables to propagate to jenkins shared library src class execution?
Jenkinsfile
withEnv(["FOO=BAR2"]) {
println "Jenkinsfile FOO=${FOO}"
library 'my-shared-jenkins-library'
lib.displayEnv()
Shared Library var/lib.groovy
def displayEnv() {
println "Shared lib var/lib FOO=${FOO}"
MyClass c = new MyClass()
}
Shared Library src/MyClass.groovy
class MyClass() {
MyClass() {
throw new Exception("Shared lib src/MyClass FOO=${System.getenv('FOO')")
}
}
** Run Result **
Jenkinsfile FOO=BAR
Shared lib var/lib FOO=BAR
java.lang.Exception: Shared lib src/MyClass FOO=null
...
Like if I need to inject a value within Steps/Script section, in Jenkins pipeline, I can define globally in the environment variables or using Jenkins project Configure General Check mark Prepare an environment for the run Check mark Keep Jenkins environment variables I can provide the environment variable in the ...
A shared library in Jenkins is a collection of Groovy scripts shared between different Jenkins jobs. To run the scripts, they are pulled into a Jenkinsfile. Each shared library requires users to define a name and a method of retrieving source code.
It sure looks like the only way to handle this is to pass the this from Jenkins file down to the var/lib.groovy and harvest from that object
Jenkinsfile
withEnv(["FOO=BAR2"]) {
library 'my-shared-jenkins-library'
lib.displayEnv(this)
var/lib.groovy
def displayEnv(script) {
println "Shared lib var/lib FOO=${FOO}"
MyClass c = new MyClass(script)
}
src class
MyClass(def script) {
throw new Exception("FOO=${script.env.FOO}")
}
I believe you can populate the environment variable as below, where shared library can access.
Jenkisfile
env.FOO="BAR2"
library 'my-shared-jenkins-library'
lib()
vars/lib.groovy
def call(){
echo ("FOO: ${FOO}")
echo ("FOO:"+env.FOO)
}
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