Move container-engine systemd environment to updated location

roles/docker/tasks/systemcontainer_docker.yml

@@ -93,7 +93,7 @@
 
 - name: Ensure docker.service.d directory exists
   file:
-    path: "{{ docker_systemd_dir }}"
+    path: "{{ container_engine_systemd_dir }}"
     state: directory
 
 - name: Ensure /etc/docker directory exists
@@ -111,7 +111,7 @@
 
 - name: Configure Container Engine Service File
   template:
-    dest: "{{ docker_systemd_dir }}/custom.conf"
+    dest: "{{ container_engine_systemd_dir }}/custom.conf"
     src: systemcontainercustom.conf.j2
 
 # Set local versions of facts that must be in json format for daemon.json

roles/docker/vars/main.yml

@@ -1,4 +1,5 @@
 ---
 docker_systemd_dir: /etc/systemd/system/docker.service.d
+container_engine_systemd_dir: /etc/systemd/system/container-engine.service.d
 docker_conf_dir: /etc/docker/
 udevw_udevd_dir: /etc/systemd/system/systemd-udevd.service.d