library/roles/apache: Add the possibility to install a newer apache package from an Ubuntu PPA.

apache/defaults/main.yml

@@ -2,6 +2,8 @@
 apache_service_enabled: True
 apache_user: www-data
 apache_group: '{{ apache_user }}'
+apache_from_ppa: False
+apache_ppa_repo: 'ppa:ondrej/apache2'
 
 # Possible choices: event, prefork (the old ones), worker (the threaded version), itm
 apache_mpm_mode: worker

apache/tasks/apache-ppa.yml

@@ -0,0 +1,14 @@
+---
+- block:
+    - name: Install the Ubuntu apache PPA
+      apt_repository: repo='{{ apache_ppa_repo }}' update_cache=yes
+
+  when: apache_from_ppa
+  tags: [ 'apache', 'apache_ppa' ]
+
+- block:
+    - name: Remove the Ubuntu apache PPA
+      apt_repository: repo='{{ apache_ppa_repo }}' update_cache=yes state=absent
+
+  when: not apache_from_ppa
+  tags: [ 'apache', 'apache_ppa' ]

apache/tasks/main.yml

@@ -1,4 +1,5 @@
 ---
+- include: apache-ppa.yml
 - include: apache.yml
 - include: apache-modules.yml
 - include: apache-basic-auth.yml