Bug fix

tasks/main.yml

@@ -2,6 +2,10 @@
 # file: roles/memcache/tasks/main.yml
 
 - name: "Install MemCache"
+  apt:
+    pkg='{{item}}'
+    state='installed'
+    update_cache=yes
   with_items:
     - php5-memcached
     - memcached