Jenkins Global environment variables in Jenkinsfile

Question

How do I invoke Global environment variables in Jenkinsfile?
For example, if I have a variable -

 name:credentialsId 
 value:xxxx-xxxx-xxxxx-xxxxxxxxx
         


        

Answer 1

When referring to env in Groovy scope, simply use env.VARIABLE_NAME, for example to pass on BUILD_NUMBER of upstream job to a triggered job:

stage ('Starting job') {
    build job: 'TriggerTest', parameters: [
        [$class: 'StringParameterValue', name: 'upstream_build_number', value: env.BUILD_NUMBER]
    ]
}