test ansicolor plugin directly on pipeline

Jenkinsfile

@@ -28,6 +28,9 @@ backupList = agent_root_folder+'/'+agent_deploy_backup_filename;
 pipeline {
     agent {
         label 'deploy'
+        options {
+            ansiColor('xterm')
+        }
     }
     triggers {
 //     every fifteen minutes (perhaps at :07, :22, :37, :52)
@@ -64,6 +67,7 @@ pipeline {
             }
             steps {
                 echo 'Cron build enabled. Deploy from system ongoing'
+                echo '\033[34mHello\033[0m \033[33mcolorful\033[0m \033[35mworld!\033[0m'
                 script {
                     // parse the report and extract the data
                     def components = parseCSVList(deployList)
@@ -211,6 +215,7 @@ def deploy(String service, String version, String host){
         cd /var/lib/jenkins/ansible-repos/ansible-playbooks/d4science-ghn-cluster/;
         git pull;
         cd CD;
+        echo '\033[34mStarting\033[0m \033[33mAnsible\033[0m \033[35mWorld\033[0m'
         ./deployService.sh $service $version $host
     """)
 }