Comment 0 for bug 1860357

Brief Description
-----------------

Backup from active controller fails due to following error:

TASK [backup/backup-system : Get the openstack Helm overrides from the from the database] **************
changed: [localhost]

TASK [backup/backup-system : Generate postgres update commands for Helm overrides] *********************

TASK [backup/backup-system : Backup Helm overrides] ****************************************************
fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'updates_list' is undefined\n\nThe error appears to have been in '/usr/share/ansible/stx-ansible/playbooks/roles/backup/backup-system/tasks/main.yml': line 180, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n - name: Backup Helm overrides\n ^ here\n"}

TASK [backup/backup-system : Remove the temp dir] ******************************************************
changed: [localhost]

TASK [backup/backup-system : Remove the backup in progress flag file] **********************************
changed: [localhost]

TASK [backup/backup-system : Clear backup_in_progress alarm] *******************************************
changed: [localhost]

TASK [backup/backup-system : Fail if alarm script throws an exception] *********************************

PLAY RECAP *********************************************************************************************
localhost : ok=30 changed=23 unreachable=0 failed=1

Severity
--------
Provide the severity of the defect.
Critical: Controller-0 failed to backup
Steps to Reproduce
------------------
1. Bring up the IPV6 regular system
2. Backup the system locally
3. Re-install the controller with the same load
4. Restore the system locally from controller

Expected Behavior
------------------
The active controller must be restored from backup

Actual Behavior
----------------
Failed to backup active controller

Reproducibility
---------------
Reproducible

System Configuration
--------------------
Any system (WCP_78_79, WCP_92_98)

Branch/Pull Time/Commit
-----------------------
BUILD_ID="2020-01-19_00-10-00"

Test Activity
-------------
Feature Testing