Ensure that /etc/ansible directory exists

Change-Id: Iea5d7c29fdd67fa59361720d622d9d5992091682
(cherry picked from commit 35dba668345ad7bc90df5eadaf38a566a3b8485b)
diff --git a/roles/create-lxd/tasks/main.yml b/roles/create-lxd/tasks/main.yml
index b6e3651..2042cba 100644
--- a/roles/create-lxd/tasks/main.yml
+++ b/roles/create-lxd/tasks/main.yml
@@ -93,6 +93,10 @@
     port=22
   with_items: "{{ head_lxd_list }}"
 
+- name: Ensure /etc/ansible directory exists
+  become: yes
+  file: path=/etc/ansible state=directory
+
 - name: Create /etc/ansible/hosts file
   become: yes
   template: