Support Debian machine using MongoDB official repository for Debian

meta/main.yml

@@ -11,5 +11,8 @@ galaxy_info:
   - name: Ubuntu
     versions:
     - all
+  - name: Debian
+    versions:
+    - wheezy
   categories:
   - database:nosql

tasks/install.deb.yml

@@ -3,8 +3,13 @@
 - name: Add APT key
   apt_key: url=http://docs.mongodb.org/10gen-gpg-key.asc id=7F0CEB10
 
-- name: Add APT repository
+- name: Add APT repository (Ubuntu)
   apt_repository: repo='deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' update_cache=yes
+  when: ansible_distribution == 'Ubuntu'
+
+- name: Add APT repository (Debian)
+  apt_repository: repo='deb http://downloads-distro.mongodb.org/repo/debian-sysvinit dist 10gen' update_cache=yes
+  when: ansible_distribution == 'Debian'
 
 - name: Install mongodb-org
   apt: pkg={{item}}