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

Scripted pipeline To read an environment variable whose name you know, use env.NAME

To read an environment variable whose name is not known until runtime use env.getProperty(name).

For example, a value from a YAML config file represents an environment variable name:

config.yaml (in workspace)

myconfig:
  key: JOB_DISPLAY_URL

Jenkinsfile

node {
    println("Running job ${env.JOB_NAME}")
    def config = readYaml(file:'config.yaml')
    def value = env.getProperty(config.myconfig.key)
    println("Value of property ${config.myconfig.key} is ${value}")
}