Merge pull request #1269 from edx/derf/mongo_deployment_fixes

Some fixes required for mongodb to be deployed

playbooks/roles/mongo/tasks/main.yml

@@ -41,7 +41,7 @@
 
 - name: copy mongodb key file
   copy: >
-    src={{ secure_dir }}/files/mongo_key
+    content="{{ MONGO_CLUSTER_KEY }}"
     dest={{ mongo_key_file }}
     mode=0600
     owner=mongodb

playbooks/roles/mongo_mms/tasks/main.yml

@@ -13,6 +13,11 @@
 
 # this cruft can be removed in ansible 1.6, which can have apt install local deb files
 
+- name: install required packages
+  apt: name={{ item }} state=present
+  with_items:
+    - gdebi
+
 - name: download mongo mms agent
   get_url: >
     url="{{ mms_agent_url }}"