CORD-396 CORD-383 CORD-362 CORD-309 significant rework on networking configuration

Change-Id: Icb3cbac66b33265486ac236572874052fc643b8a
diff --git a/roles/head-node/files/do-ansible b/roles/head-node/files/do-ansible
index ae2efb9..0d91c31 100755
--- a/roles/head-node/files/do-ansible
+++ b/roles/head-node/files/do-ansible
@@ -22,4 +22,4 @@
 fi
 
 echo "ANSIBLE_ROLES_PATH=/etc/maas/ansible/roles ansible-playbook --private-key=/etc/maas/ansible/id_rsa -i $IP, /etc/maas/ansible/compute-node.yml $SKIP_TAGS $EXTRA_VARS" >> $LOG
-ANSIBLE_ROLES_PATH=/etc/maas/ansible/roles ansible-playbook --private-key=/etc/maas/ansible/id_rsa -i $IP, /etc/maas/ansible/compute-node.yml $SKIP_TAGS $EXTRA_VARS >> $LOG
+ANSIBLE_ROLES_PATH=/etc/maas/ansible/roles ansible-playbook --private-key=/etc/maas/ansible/id_rsa -i $IP, /etc/maas/ansible/compute-node.yml $SKIP_TAGS $EXTRA_VARS >> $LOG || exit $?