CORD-1639 Add 'node' to image whitelists

Change-Id: I43548176889a3a74a5aace15ac6b7e2c613e0176
diff --git a/scenarios/mock/config.yml b/scenarios/mock/config.yml
index 9885554..c54a6cb 100644
--- a/scenarios/mock/config.yml
+++ b/scenarios/mock/config.yml
@@ -63,6 +63,7 @@
   - "gliderlabs/registrator"
   - "nginx"
   - "redis"
+  - "node"
 
 # Ansible Inventory
 inventory_groups: