How to pass a file parameter to another build job in jenkins pipeline?

Now you can use the latest File Parameters plugin to implement it.

Here's a simple example:

test-parent pipeline

pipeline { agent any parameters { base64File(name: 'testFileParent', description: 'Upload file test') } stages { stage('Invoke Child Job') { steps { withFileParameter('testFileParent') { script{ def fileContent = readFile(env.testFileParent) build(job: 'test-child', parameters: [base64File(name: 'testFileChild', base64: Base64.encoder.encodeToString(fileContent.bytes))]) } } } } } } 

test-child pipeline

pipeline { agent any parameters { base64File(name: 'testFileChild', description: 'Upload file test') } stages { stage('Show File') { steps { withFileParameter('testFileChild') { sh("cat $testFileChild") } } } } } 

It works like this:

1. Build test-parent pipeline with parameters, start with a test file
2. test-parent pipeline invokes test-child pipeline with the test file which was uploaded at Step 1
3. test-child pipeline prints the test file content to console

What a nightmare - there is no documentation, looked into jenkins code, etc.. Tried everything

Eventually found out that this doesn't currently work. Here is the jenkins bug.

https://issues.jenkins-ci.org/browse/JENKINS-27413

Linked to from here: http://jenkins-ci.361315.n4.nabble.com/pipeline-build-job-with-FileParameterValue-td4861199.html

You need to pass in a FileParameterValue

http://javadoc.jenkins.io/hudson/model/FileParameterValue.html

You can pass the full path of file, you could do:

node('master') { //Read the workspace path String path = pwd(); String pathFile = "${path}/exampleDir/fileExample.ext"; //Do whatever you wish with the file path } 

This approach assumes you have the file in the current job's workspace.

pipeline { agent any stages { stage('Pass file type param to build job') { steps { script { def propertiesFilePath = "${env.WORKSPACE}/sample.properties" build job: 'other-project', parameters: [[$class: "FileParameterValue", name: "propertiesFile", file: new FileParameterValue.FileItemImpl(new File(propertiesFilePath))]] } } } } } 

Here the name of the downstream/child job is 'other-project' and the name of the file type parameter in this downstream/child job is 'propertiesFile'. The type FileParameterValue.FileItemImpl is defined in the class FileParameterValue and is internally used in jenkins to handle FileItem, also adding serialization support to the same.