Description of problem:

When running the Undercloud upgrade command, it might be useful to obtain a reproducer-command to run the same Ansible playbooks. However, this option is only available at "openstack tripleo deploy" command, which is invoked from the same "openstack undercloud upgrade" command.

[stack@undercloud-0 ~]$ openstack undercloud upgrade --yes --reproduce-command
/usr/lib64/python3.6/site-packages/_yaml/__init__.py:23: DeprecationWarning: The _yaml extension module is now located at yaml._yaml and its location is subject to change.  To use the LibYAML-based parser and emitter, import from `yaml`: `from yaml import CLoader as Loader, CDumper as Dumper`.
  DeprecationWarning
/usr/lib/python3.6/site-packages/barbicanclient/__init__.py:61: UserWarning: The secrets module is moved to barbicanclient/v1 directory, direct import of barbicanclient.secrets will be deprecated. Please import barbicanclient.v1.secrets instead.
  % (name, name, name))
usage: openstack undercloud upgrade [--force-stack-update] [--no-validations]
                                    [--inflight-validations] [--dry-run] [-y]
                                    [--disable-container-prepare]
                                    [--skip-package-updates]
openstack undercloud upgrade: error: unrecognized arguments: --reproduce-command


It would be very useful to add such an option so that a reproducer script will be available after the execution:

Ansible execution failed. playbook: upgrade_steps_playbook.yaml, Run Status: failed, Return Code: 2, To rerun the failed command manually execute the following script: /home/stack/tripleo-deploy/undercloud/undercloud-ansible-hcsunkgu/ansible-playbook-command.sh  

NOTE: To be able to get this error output I had to get the whole "openstack tripleo deploy" command generated by "openstack undercloud upgrade" and add the --reproduce-command into it.

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