Authentication failed warning in fuel-qa + fuel-devops v3 console output. If authentication failed on retry stage and don't failed - need to write this to DEBUG

[Artem Hrechanychenko]

Detailed bug description:

2016-08-12 15:26:55 - ERROR - ssh_client.py:144 -- Connection using stored authentication info failed!
Traceback (most recent call last):
  File "/home/jenkins/qa-venv-master-3.0/local/lib/python2.7/site-packages/devops/helpers/ssh_client.py", line 123, in connect
    client.connect(**kwargs)
  File "/home/jenkins/qa-venv-master-3.0/local/lib/python2.7/site-packages/paramiko/client.py", line 380, in connect
    look_for_keys, gss_auth, gss_kex, gss_deleg_creds, gss_host)
  File "/home/jenkins/qa-venv-master-3.0/local/lib/python2.7/site-packages/paramiko/client.py", line 603, in _auth
    raise saved_exception
AuthenticationException: Authentication failed.
2016-08-12 15:26:58 - INFO - ssh_client.py:370 -- 10.109.0.2:22> SSHAuth was made from old style creds: SSHAuth for root

Steps to reproduce:
https://custom-ci.infra.mirantis.net/view/All/job/10.0.repos.custom.ubuntu.bvt_2/

 Expected results:
  No error messages in console -output, only in sys_test.log

 Actual result:
  error message in console output

 Reproducibility:
 https://custom-ci.infra.mirantis.net/view/All/job/10.0.repos.custom.ubuntu.bvt_2/

[Mikhail Samoylov (msamoylov)]

I think if auth failed on retry stage it must be warning, not a debug.

[Dmitry Belyaninov (dbelyaninov)]

https://product-ci.infra.mirantis.net/job/10.0.system_test.ubuntu.test_ibp/106/testReport/(root)/check_mcollective_version/check_mcollective_version/

https://product-ci.infra.mirantis.net/job/10.0.system_test.ubuntu.bvt_ubuntu_bootstrap/157/testReport/(root)/build_default_bootstrap/build_default_bootstrap/

https://product-ci.infra.mirantis.net/job/10.0.system_test.ubuntu.bvt_ubuntu_bootstrap/157/testReport/(root)/deploy_with_two_ubuntu_bootstraps/deploy_with_two_ubuntu_bootstraps/

[Dmitry Belyaninov (dbelyaninov)]

actual for devops 2.9 too
https://product-ci.infra.mirantis.net/job/10.0.system_test.ubuntu.bvt_ubuntu_bootstrap/167/testReport/(root)/reset_on_ready_ubuntu_bootstrap/reset_on_ready_ubuntu_bootstrap/

[Sergey Novikov (snovikov)]

The failures related to devops 2.9 have the other root cause https://bugs.launchpad.net/fuel/+bug/1664455