Failures will result in cleanup.

bigboot_execute_resize.yml

@@ -57,3 +57,7 @@
             name: infra.lvm_snapshots.bigboot
           vars:
             bigboot_partition_size: "{{ bigboot_size_target }}"
+
+      rescue:
+        - name: Cleanup from any previous executions
+          ansible.builtin.import_tasks: tasks/cleanup.yml

tasks/validate_rear_backup.yml

@@ -0,0 +1,9 @@
+---
+- name: Validate ReaR backup completion
+  ansible.builtin.command:
+    cmd: "grep 'Finished running mkbackup workflow' /var/log/rear/rear-{{ ansible_hostname }}.log"
+  register: validate_backup_log
+
+- name: Debug validate_backup_log
+  ansible.builtin.debug:
+    var: validate_backup_log