Merge pull request #353 from edx/cg/mongodb_version_lock

Fixed bad YAML and locked db to specific variable configured version

playbooks/roles/mongo/defaults/main.yml

 mongo_dbpath: /var/lib/mongodb
 mongo_logpath: /var/log/mongodb/mongodb.log
 mongo_logappend: true
+mongo_version: 2.4.7
 mongo_bind_ip: 127.0.0.1
 mongo_extra_conf: ''
 

playbooks/roles/mongo/tasks/main.yml

@@ -21,7 +21,7 @@
 
 - name: mongo | install mongo server and recommends
   apt: >
-    pkg=mongodb-10gen
+    pkg=mongodb-10gen={{ mongo_version }}
     state=present
     install_recommends=yes
     update_cache=yes
@@ -53,9 +53,9 @@
 
 - name: mongo | create a mongodb user
   mongodb_user: >
-    database={{ database }}
-    name={{ user }}
-    password={{ password }}
+    database={{ item.database }}
+    name={{ item.user }}
+    password={{ item.password }}
     state=present
-  with_items: {{MONGO_USERS}}
+  with_items: MONGO_USERS
   tags: mongo