environment

1. server side:
   • Jenkins 2.1, pipeline plugin: 2.1, ansible 2.0
   • Java: oracle jdk8: build 1.8.0_91-b14
   • os: Ubuntu 14.04.4 LTS
2. client side:
   • Google chrome Version 50.0.2661.94 (64-bit)
   • Fedora 23

list of issues:

1. when you want to generate snippet for eitherplaybook or ad-hoc command, the groovy generated does not have unbufferedOutput flag, no matter the value
   • reproducing: click "Snippet Generator", Sample step: "General build step", in "Build Step" choose either ansible playbook or ad-hoc, and play with unbuffered flag, pressing "Generate" after each change - does not affect groovy
2. I have created a "deep" closure of:

   node('master') {
       withCredentials([[
               $class           : 'AmazonWebServicesCredentialsBinding',
               credentialsId    : creds_id_amazon,
               accessKeyVariable: 'AWS_ACCESS_KEY_ID',
               secretKeyVariable: 'AWS_SECRET_ACCESS_KEY'
           ]]) {
           dir('dnoc'){
               wrap([$class: 'TimestamperBuildWrapper']){
                   wrap([$class: 'AnsiColorBuildWrapper', colorMapName: "xterm"]){
                        // call to ansible via:
                        def result = step([
                           $class              : 'AnsibleAdHocCommandBuilder',
                           //....
                         ])                     
                    }
               } 
           }
       }
   }
   

   Fails with:

   [Pipeline] step
   23:42:14 FATAL: command execution failed
   23:42:14 hudson.AbortException: The ansible playbook build step requires to be launched on a node
   23:42:14 	at org.jenkinsci.plugins.ansible.AnsibleAdHocCommandBuilder.perform(AnsibleAdHocCommandBuilder.java:158)
   23:42:14 	at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:68)
   23:42:14 	at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:59)
   23:42:14 	at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:49)
   23:42:14 	at hudson.security.ACL.impersonate(ACL.java:213)
   23:42:14 	at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:47)
   23:42:14 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   23:42:14 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   23:42:14 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
   23:42:14 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
   23:42:14 	at java.lang.Thread.run(Thread.java:745)
   [Pipeline] }