Issue

• How can I print all of the current environment variables in a Pipeline build?

• How can I print the environment variables of a downstream build (Pipeline or not)?

Environment

• CloudBees CI (CloudBees Core) on modern cloud platforms - Managed controller
• CloudBees CI (CloudBees Core) on traditional platforms - Client controller
• CloudBees Jenkins Enterprise - Managed controller
• CloudBees Jenkins Platform - Client controller
• CloudBees Jenkins Distribution
• Jenkins LTS

Resolution

Printing the variables of the current build

For linux env

You can use the printenv command:

sh 'printenv'

For windows env

You can use the set command:

bat 'set' 

Special case: printing the build variables of a downstream build

You can print the build variables used by a downstream job triggered with the build directive:

    def run = build 'quality-freestyle'
    echo "${run.buildVariables}"

Please that prior to the [Pipeline Supporting APIs Plugin] version 2.15 this was not working if the downstream job was not a Pipeline job.

References

• Pipeline as Code in Jenkins