library/roles/nginx/tasks/nginx.yml: Add support for the Ubuntu nginx ppa. Disabled by default.

nginx/tasks/nginx.yml

@@ -1,6 +1,11 @@
 ---
+- name: Install the Ubuntu PPA for nginx
+  apt_repository: repo='{{ nginx_ppa_repo }}'
+  when: nginx_use_ppa
+  tags: [ 'nginx', 'nginx_ppa' ]
+
 - name: Install the nginx web server
-  apt: pkg={{ item }} state=installed
+  apt: pkg={{ item }} state={{ nginx_package_state }} update_cache=yes
   with_items:
     - nginx-full
   when: not nginx_use_ldap_pam_auth
@@ -24,14 +29,3 @@
   notify: Reload nginx
   tags: [ 'nginx', 'nginx_conf' ]
 
-- name: Ensure that the webserver is running and enabled at boot time
-  service: name=nginx state=started enabled=yes
-  when: nginx_enabled
-  ignore_errors: True
-  tags: nginx
-
-- name: Ensure that the webserver is stopped and disabled
-  service: name=nginx state=stopped enabled=no
-  when: not nginx_enabled
-  ignore_errors: True
-  tags: nginx