Resolution
Waiting for JENKINS-27413 to be fixed, uploading a file in a Pipeline involves manually copying the file from the controller to the agent.
The following sample will:
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ask the end user for the file (it is assumed that it is an archive)
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copy it on the agent
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prove that the file is visible on the agent
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archive it back to the master
// assuming you wish to upload a zip archive
def uploadedFile = 'uploaded.zip'
//file is uploaded to $JENKINS_HOME/$PATH_TO_THE_JOB/build/$BUILD_ID
def controllerFilePath = input message: 'Upload your archive', parameters: [file(description: 'archive', name: uploadedFile)]
node('agent') {
stage('Copy From controller') {
def localFile = getContext(hudson.FilePath).child(uploadedFile)
localFile.copyFrom(controllerFilePath)
sh 'ls -al'
archiveArtifacts uploadedFile
}
}Note that, for this to work you will have to approve two methods in the script approval screen.