run all backup tasks in a slice

roles/any.tools.backup-scripts/tasks/main.yml

@@ -35,6 +35,15 @@
   loop: "{{ backups }}"
   when: item.user is defined
 
+- name: Ensure backup slice unit is present
+  ansible.builtin.copy:
+    src: "backup.slice"
+    dest: "/etc/systemd/system/backup.slice"
+    owner: root
+    group: root
+    mode: "0644"
+  notify: Reload systemd
+
 - name: Ensure systemd service unit is present for each backup
   ansible.builtin.template:
     src: "backup.service.j2"