Using var file for etcd service

roles/etcd/tasks/configure.yml

@@ -7,13 +7,10 @@
   notify:
     - restart etcd2
 
-- name: Create etcd2 environment vars dir
-  file: path=/etc/systemd/system/etcd2.service.d state=directory
-
-- name: Write etcd2 config file
-  template: src=etcd2.j2 dest=/etc/systemd/system/etcd2.service.d/10-etcd2.conf backup=yes
-  notify:
-    - restart etcd2
+- name: Create etcd2 environment vars file
+  template:
+    src: etcd2-environment.j2
+    dest: /etc/etcd2-environment
 
 - name: Ensure etcd2 is running
   service: name=etcd2 state=started enabled=yes