[9.x][updates] update_9x_fuel playbook has failed

[Ruslan Khozinov]

Detailed bug description:

TASK [Systemd loads fresh units] ***********************************************
task path: /root/mos_mu/playbooks/tasks/update_9x_fuel.yml:9
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: AttributeError: 'PlayContext' object has no attribute 'executable'
fatal: [nailgun.test.domain.local]: FAILED! => {"failed": true, "msg": "Unexpected failure during module execution.", "stdout": ""}

Steps to reproduce:
- Get Fuel 9.1
- Set the next proposed repo for fuel:
  [mos9.2]
  name=mos9.2
  #snapshot681
  baseurl=http://mirror.seed-cz1.fuel-infra.org/mos-repos/centos/mos9.0-centos7/snapshots/proposed-2016-12-24-130321/x86_64
  enabled=1
  gpgcheck=1
  gpgkey=file:///etc/pki/fuel-gpg/RPM-GPG-KEY-mos
  skip_if_unavailable=1
- Run the playbooks/mos9_prepare_fuel.yml playbook
- Run the ansible-playbook playbooks/mos9_prepare_env.yml -e '{"env_id":1, "snapshot_repo":"9.0-2016-10-22-202322"}'
- Run the playbooks/mos9_prepare_env.yml -e '{"env_id":2, "snapshot_repo":'9.0-2016-12-24-130321'}' -vv | tee prepare_env.log
- Run the playbooks/update_fuel.yml -e '{"rebuild_bootstrap":false}' -vv | tee update_fuel.log

[Ruslan Khozinov (rkhozinov)]

The second run of the "ansible-playbook playbooks/update_fuel.yml -e '{"rebuild_bootstrap":false}' -vvv | tee update_fuel.log" command has finished successfully.

[Ruslan Khozinov (rkhozinov)]

The issue has been reproduced again on another env.
So I've got more readable error message:

TASK [Systemd loads fresh units] ***********************************************
task path: /root/mos_mu/playbooks/tasks/update_9x_fuel.yml:9
An exception occurred during task execution. The full traceback is:
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ansible/executor/task_executor.py", line 120, in run
    else:
  File "/usr/lib/python2.7/site-packages/ansible/executor/task_executor.py", line 379, in _execute
    return dict(changed=False, skipped=True, skip_reason='Conditional check failed', _ansible_no_log=self._play_context.no_log)
  File "/usr/lib/python2.7/site-packages/ansible/executor/task_executor.py", line 596, in _get_connection
    return async_result
  File "/usr/lib/python2.7/site-packages/ansible/plugins/__init__.py", line 331, in get
  File "/usr/lib/python2.7/site-packages/ansible/plugins/connection/__init__.py", line 92, in __init__
    shell_filename = os.path.basename(self._play_context.executable)
AttributeError: 'PlayContext' object has no attribute 'executable'
fatal: [nailgun.test.domain.local]: FAILED! => {"failed": true, "msg": "Unexpected failure during module execution.", "stdout": ""}

[Ruslan Khozinov (rkhozinov)]

systemd-shim has already been installed during 9.0->9.1

[Ruslan Khozinov (rkhozinov)]

the same issue has reproduced on the 692 snapshot

mos-playbooks.noarch 0:1.0.0-1.el7~mos8

[Ruslan Khozinov (rkhozinov)]

The issue hasn't reproduced on 767