Issue
You want to let users specify any kind of parameters when creating a job from a pipeline template and handle them in the pipeline.
Resolution
Flow Definition
You need to create a pipeline template with the following characteristics:

<flow-definition plugin="workflow-job@1.14"> <actions/> <description/> <keepDependencies>false</keepDependencies> <properties> <% if (Variables) { %> <hudson.model.ParametersDefinitionProperty> <parameterDefinitions> ${serializeAll(Variables)} </parameterDefinitions> </hudson.model.ParametersDefinitionProperty> <% } %> </properties> <definition class="org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition" plugin="workflow-cps@1.14"> <sandbox>false</sandbox> </definition> <triggers/> </flow-definition><flow-definition plugin="workflow-job@1.14"> <actions/> <description/> <keepDependencies>false</keepDependencies> <properties> <% if (Variables) { %> <hudson.model.ParametersDefinitionProperty> <parameterDefinitions> ${serializeAll(Variables)} </parameterDefinitions> </hudson.model.ParametersDefinitionProperty> <% } %> </properties> <definition class="org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition" plugin="workflow-cps@1.14"> <sandbox>false</sandbox> </definition> <triggers/> </flow-definition>
Script
import hudson.model.ParameterValue import hudson.model.ParametersAction; node('built-in') { def myparams = currentBuild.rawBuild.getAction(ParametersAction) for(ParameterValue p in myparams.parameters) { println p.name println p.value } }
This produces the output:
Started by user anonymous [Pipeline] Allocate node : Start Running on built-in in /Users/fbelzunc/cloudbees/support/support-shinobi-tools/cases/34880/5-cloudbees-support_2016-04-01_19.17.49/jenkins-home/jobs/felix/workspace [Pipeline] node { [Pipeline] echo parameter [Pipeline] echo DANIEL [Pipeline] } //node [Pipeline] Allocate node : End [Pipeline] End of Pipeline Finished: SUCCESS
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