Ansible 2.2.0.0 used in Stein kolla-toolbox requires paramiko (no version
constraints), which installs latest cryptography package. It results in
Python deprecation warning about Python 2:
/usr/lib64/python2.7/site-packages/cryptography/__init__.py:39: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in a future release.
This warning breaks kolla_toolbox module.
Closes-Bug: #1888657
Change-Id: I3e38946d9dabd5df8bf7c6202a8b739304fe4622
bbaa82619e