disable write barrieres for the remote journal

journal-remote/tasks/main.yml

+- name: ensure there are no write barriers on the partition for the remote journals 
+  mount:
+    fstype: ext4
+    opts: defaults,nobarrier
+    state: mounted
+    path: /
+    src: "UUID={{ item.uuid }}"
+    passno: 1
+  with_items: "{{ ansible_mounts }}"
+  when:  item.mount ==  "/"
+  tags:
+    - journal-remote
+
 - name: Install systemd-journal-remote
   apt:
     name: systemd-journal-remote