Fix some issues related to the integration of onos-diagnostics-k8s

Change-Id: I686afd67fc96ac59c38ec03ab71158cd0109a893
diff --git a/jjb/defaults.yaml b/jjb/defaults.yaml
index 7640c80..e110a5b 100644
--- a/jjb/defaults.yaml
+++ b/jjb/defaults.yaml
@@ -199,3 +199,7 @@
     # maintainers
     # Used to notify users in supported tests
     maintainers: 'zdw@opennetworking.org'
+
+    # karaf-home
+    # Use to grab the logs or onos-diagnostics
+    karaf-home: 'apache-karaf-4.2.9'