Dynamic Parameter in Jenkinsfile?

Question

How can I use the Jenkins Dynamic Plugin in a Jenkinsfile?

What I am looking for is a Jenkinsfile snippet that:

Enables the Build with Parameters option in the Jenkins job
When selected, a script that populates a list that can be used Dynamic Choice Parameters is populated and the user will see a drop down list.

When trying:

Pipeline syntax in the Jenkins editor
Selecting properties: Set job properties as Sample step
Selecting This project is parameterized
Using Dynamic Choice Parameter
Enter values for Name, Choice Script, Remote Script etc
Generate Pipeline Script

I get the following template:

properties([ parameters([ <object of type com.seitenbau.jenkins.plugins.dynamicparameter.ChoiceParameterDefinition> ]), pipelineTriggers([]) ])

i.e. the generated pipeline script does not contain the data that I have entered in step 5. above. How can I modify parameters so that parameter name, choices, etc will be visible to the user?

Jenkins version: 2.19.3 Dynamic Parameter Plugin version: 0.2.0

StephenKing · Accepted Answer · 2017-07-09 07:27:03Z

11

there is no need anymore for the Jenkins Dynamic Plugin anymore. Just use the normal choice or string parameter and have the value(s) updated by groovy code.

#!/bin/groovy def envs = loadEnvs(); properties([ parameters([ choice(choices: envs, description: 'Please select an environment', name: 'Env') ]) ]) node { try { stage('Preparation'){ ...

If you use the choice parameter be aware the you must provide a string where the values are separated by a new line.

For example:

"a\nb\nc"

If you really need to plugin, then vote on this issue JENKINS-42149.

edited Jul 9, 2017 at 7:27

StephenKing

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answered Feb 14, 2017 at 15:47

Karel Striegel

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4 Comments

Aaron McMillin Over a year ago

In what version of Jenkins? I'm running 2.3 and get the error "No such DSL method 'parameters' found among steps"

Georgy Gobozov Over a year ago

It works, but it creates new parameter and persists values in build parameters, if actual values (for example list of maven versions) changed -parameters values not updated, seems loadEnvs() not executed every time or smth like this

Andrew Gray Over a year ago

This is a scripted pipeline. Does it work in declarative pipeline? If so, how? What's the syntax?

Michael Mrozek Over a year ago

The problem with this is changes to build properties only affect future builds -- changing the parameters on the current build doesn't help because the properties() function runs after the user has already provided the build parameters for that build

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