Force umount of nas volume, because there are conficts on error.

nas.yaml

@@ -67,6 +67,12 @@
               text: "{{ ansible_date_time.date }} {{ ansible_date_time.time }} (info): Playbook ran successful ({{ ansible_play_name }})"
 
       rescue:
+        - name: Umount nas volume
+          ansible.posix.mount:
+            path: /media/nas
+            state: unmounted
+          become: yes
+
         - name: Inform Mattermost about error
           uri:
             url: "{{ mattermost_url }}"