library/roles/apache: Do not install the mpm worker package if the PPA is enabled

apache/defaults/main.yml

@@ -10,12 +10,14 @@ apache_mpm_mode: worker
 
 apache_packages:
   - apache2
-  - 'apache2-mpm-{{ apache_mpm_mode }}'
   - apache2-utils
   - libapache2-mod-xsendfile
   - unzip
   - zip
 
+apache_modules_packages:
+  - 'apache2-mpm-{{ apache_mpm_mode }}'
+
 # Only one can be present at the same time. It needs to be listed as the last one
 apache_worker_modules:
 #  - { name: 'mpm_itm', state: 'absent' }

apache/tasks/apache.yml

@@ -4,10 +4,10 @@
   with_items: '{{ apache_packages }}'
   tags: [ 'apache', 'apache_main_packages' ]
 
-- name: Install the apache additional packages, if any
+- name: Install the apache modules packages
   apt: pkg={{ item }} state=installed
-  with_items: '{{ apache_additional_packages_list }}'
-  when: apache_additional_packages
+  with_items: '{{ apache_modules_packages }}'
+  when: not apache_from_ppa
   tags: [ 'apache', 'apache_additional_packages' ]
 
 # - name: Load the required worker module
@@ -25,6 +25,12 @@
 #   ignore_errors: True
 #   tags: [ 'apache', 'apache_modules' ]
 
+- name: Install the apache additional packages, if any
+  apt: pkg={{ item }} state=installed
+  with_items: '{{ apache_additional_packages_list }}'
+  when: apache_additional_packages
+  tags: [ 'apache', 'apache_additional_packages' ]
+
 - name: Remove the default virtualhost file
   file: dest=/etc/apache2/sites-enabled/{{ item }} state=absent
   with_items: