Minor fixes to help integration of CORD-912

Change-Id: I8dd69bf2eae091ca60bbbfbfebce465405662a58
diff --git a/roles/docker-install/tasks/main.yml b/roles/docker-install/tasks/main.yml
index 826d5bb..2beb5c7 100644
--- a/roles/docker-install/tasks/main.yml
+++ b/roles/docker-install/tasks/main.yml
@@ -5,9 +5,9 @@
 - name: Prereqs and SSL support for apt for SSL
   become: yes
   apt:
-    name={{ item }}
-    update_cache=yes
-    cache_valid_time=3600
+    name: "{{ item }}"
+    update_cache: yes
+    cache_valid_time: 3600
   with_items:
     - apt-transport-https
     - ca-certificates
@@ -26,9 +26,9 @@
 - name: Install docker
   become: yes
   apt:
-    update_cache=yes
-    cache_valid_time=3600
-    name=docker-engine
+    name: docker-engine
+    update_cache: yes
+    cache_valid_time: 3600
 
 # docker fails without docker-py, docker-compose >1.9 fails with docker-py installed
 - name: Install docker-compose and docker-py