Merge pull request #1637 from edx/derf/mongodb_upgrade

move from mongo 10gen to org

playbooks/roles/mongo/defaults/main.yml

 mongo_logappend: true
-mongo_version: 2.4.7
+mongo_version: 2.6.4
 mongo_port: "27017"
 mongo_extra_conf: ''
 mongo_key_file: '/etc/mongodb_key'

playbooks/roles/mongo/tasks/main.yml

 
 ---
+- name: check to see that MongoDB 2.4 isn't installed
+  stat: path=/etc/init.d/mongodb
+  register: mongodb_needs_upgrade
+
+- name: verify 2.4 not installed
+  fail: msg="MongoDB 2.4 is currently installed. Check http://docs.mongodb.org/manual/release-notes/2.6-upgrade/#upgrade-considerations - automated upgrade to follow"
+  when: mongodb_needs_upgrade.stat.exists 
+
+
 - name: install python pymongo for mongo_user ansible module
   pip: >
     name=pymongo state=present
@@ -18,7 +27,7 @@
 
 - name: install mongo server and recommends
   apt: >
-    pkg=mongodb-10gen={{ mongo_version }}
+    pkg=mongodb-org={{ mongo_version }}
     state=present install_recommends=yes
     force=yes update_cache=yes
 
@@ -32,8 +41,8 @@
     - "{{ mongo_dbpath }}"
     - "{{ mongo_log_dir }}"
 
-- name: stop mongo service
-  service: name=mongodb state=stopped
+- name: stop mongod service
+  service: name=mongod state=stopped
 
 - name: move mongodb to {{ mongo_data_dir }}
   command: mv /var/lib/mongodb  {{ mongo_data_dir}}/.  creates={{ mongo_data_dir }}/mongodb
@@ -49,11 +58,11 @@
   when: MONGO_CLUSTERED
 
 - name: copy configuration template
-  template: src=mongodb.conf.j2 dest=/etc/mongodb.conf backup=yes
+  template: src=mongodb.conf.j2 dest=/etc/mongod.conf backup=yes
   notify: restart mongo
 
 - name: start mongo service
-  service: name=mongodb state=started
+  service: name=mongod state=started
 
 - name: wait for mongo server to start
   wait_for: port=27017 delay=2