apt dist-upgrade reboot enabled, lint fixes
second round, for testing
lint clean, testing needed
prereqs assert w/dig doesn't loop properly
use head not all for target hosts in single

Change-Id: Ie530204b989a73828f45508fcdd4374a3362c764
diff --git a/cord-compute-playbook.yml b/cord-compute-playbook.yml
index 6461e1f..df42336 100644
--- a/cord-compute-playbook.yml
+++ b/cord-compute-playbook.yml
@@ -4,9 +4,12 @@
 - name: Include vars
   hosts: all
   tasks:
-  - include_vars: vars/cord_defaults.yml
-  - include_vars: vars/cord.yml
-  - include_vars: vars/example_keystone.yml
+    - name: Include variables
+      include_vars: "{{ item }}"
+      with_items:
+        - vars/cord_defaults.yml
+        - vars/cord.yml
+        - vars/example_keystone.yml
 
 - name: Configure compute hosts to use DNS server
   hosts: all