+++ This bug was initially created as a clone of Bug #1766229 +++

Description of problem:
While upgrading from 13 to 14 when my node upgrade failed , I got the error message to check the logs from the "ERROR openstack [-] Update failed with: Ansible failed, check log at /var/lib/mistral/a4e50beb-002d-4eab-b34f-2bc9b692c8fe/ansible.log.: RuntimeError: Update failed with: Ansible failed, check log at /var/lib/mistral/a4e50beb-002d-4eab-b34f-2bc9b692c8fe/ansible.log" while there is no ansible.log file present in this directory.
Version-Release number of selected component (if applicable):13->14

How reproducible:
100%

Steps to Reproduce:
1.do the node_update_failed 
2.check the error log location mentioned in error message

Actual results:
There should be ansible.log file for troubleshooting the error

Expected results:
No ansible.log file present in the path mentioned in error message

Additional info:

The fix suppose to be easy like updatein below location yaml file"/usr/share/tripleo-common/workbooks/package_update.yaml":
[Line 166-170]
node_update_failed:
        on-success: send_message
        publish:
          status: FAILED
          message: Ansible failed, check log at <% $.get('work_dir') %>/<% execution().id %>/ansible.log.


which needs to be corrected:

node_update_failed:
        on-success: send_message
        publish:
          status: FAILED
          message: Ansible failed, check log at "/var/log/containers/mistral/package_update.log" or something similar to that.


Impact: Help our customer to point to right direction for checking the logs and definitely help us in getting few calls!

Thanks