Clean up install of JJB and add instrumentation

Change-Id: I73fcfe0335a7d95beef1570919929e05226adfa6
Issue-ID: INT-146
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/bootstrap/jenkins/vagrant/jenkins-init-1.sh b/bootstrap/jenkins/vagrant/jenkins-init-1.sh
index 1f0a808..3e83fa1 100755
--- a/bootstrap/jenkins/vagrant/jenkins-init-1.sh
+++ b/bootstrap/jenkins/vagrant/jenkins-init-1.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -x
 #
 # Copyright 2017 Huawei Technologies Co., Ltd.
 #