fix borg error not sending notification

ansible/roles/borg/backup-failure.service.j2

@@ -0,0 +1,9 @@
+[Unit]
+Description=Send backup failure notification
+
+[Service]
+Type=oneshot
+ExecStart=apprise --body="Failed to create backup!" {{ apprise_url }}
+
+[Install]
+WantedBy=multi-user.target

ansible/roles/borg/backup.service

@@ -1,5 +1,6 @@
 [Unit]
 Description=Backup data using Borgmatic
+OnFailure=backup-failure.service
 
 [Service]
 ExecStart=/usr/bin/borgmatic --config /root/backup.yml

ansible/roles/borg/backup.yml.j2

@@ -17,6 +17,4 @@ hooks:
     - guestunmount /mnt/thecloud && sleep 1
     - virsh blockcommit tf-thecloud vdb --active --verbose --pivot
     - rm /kvm/snapshots/thecloud.qcow2
-    - apprise --body="Backup succeeded" {{ apprise_url }} || true
-  on_error:
-    - apprise --body="Error while performing backup" {{ apprise_url }} || true
+    - apprise --body="Backup succeeded!" {{ apprise_url }} || true

ansible/roles/borg/tasks/main.yml

@@ -35,6 +35,12 @@
     dest: /etc/systemd/system/backup.timer
   notify: systemd daemon reload
 
+- name: Copy systemd backup failure service
+  template:
+    src: "{{ role_path }}/backup-failure.service.j2"
+    dest: /etc/systemd/system/backup-failure.service
+  notify: systemd daemon reload
+
 - name: Enable backup timer
   systemd:
     name: backup.timer