Handle metadata.db creation with copy instead of template

roles/calibre-web/tasks/main.yml

@@ -35,14 +35,13 @@
     - { src: 'calibre-web.conf.j2', dest: '/etc/apache2/sites-available/calibre-web.conf', mode: '0644' }
 
 - name: Provision calibre-web with default administration account and database.
-  template:
-    src: "{{ item.src }}"
-    dest: "{{ item.dest }}"
-    mode: "{{ item.mode }}"
+  copy:
+    src: roles/calibre-web/files/metadata.db
+    dest: "{{ calibre-web_home }}"
     owner: "{{ calibre_web_user }}"
     group: "{{ apache_user }}"
-  with_items:
-    - { src: 'metadata.db', dest: '{{ calibre_web_home }}/metadata.db', mode: '0644' }
+    mode: 0644
+    backup: yes
   when: calibre_web_provision
 
 - name: Ask systemd to reread unit files (daemon-reload).