[etherpad] Automatically install ep_delete_after_delay module if necessary

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

roles/etherpad/tasks/main.yml

@@ -31,6 +31,16 @@
   loop: "{{ etherpad.instances }}"
   notify: Restart Etherpad
 
+- name: Install delete_after_delay module
+  npm:
+    name: ep_delete_after_delay
+    path: "/var/www/{{ item.name }}/node_modules"
+    state: "{% if item.temporary.enabled is defined and item.temporary.enabled %}present{% else %}absent{% endif %}"
+  loop: "{{ etherpad.instances }}"
+  become: true
+  become_user: etherpad
+  notify: Restart Etherpad
+
 - name: Install EtherPad systemd unit
   template:
     src: systemd/system/etherpad-lite.service.j2