transient ssl error

gistfile1.txt

ASK [bifrost-keystone-install : Install python-openstackclient package from pip] *****************************************************************************************************************************************************************************************************************************************
fatal: [127.0.0.1]: FAILED! => {"changed": false, "cmd": "/usr/bin/pip2 install -c /opt/stack/requirements/upper-constraints.txt python-openstackclient", "failed": true, "msg": "\n:stderr: Traceback (most recent call last):\n  File \"/usr/bin/pip2\", line 9, in <module>\n    load_entry_point('pip==8.1.1', 'console_scripts', 'pip2')()\n  File \"/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py\", line 542, in load_entry_point\n    return get_distribution(dist).load_entry_point(group, name)\n  File \"/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py\", line 2569, in load_entry_point\n    return ep.load()\n  File \"/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py\", line 2229, in load\n    return self.resolve()\n  File \"/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py\", line 2235, in resolve\n    module = __import__(self.module_name, fromlist=['__name__'], level=0)\n  File \"/usr/lib/python2.7/dist-packages/pip/__init__.py\", line 13, in <module>\n    from pip.exceptions import InstallationError, CommandError, PipError\n  File \"/usr/lib/python2.7/dist-packages/pip/exceptions.py\", line 6, in <module>\n    from pip._vendor.six import iteritems\n  File \"/usr/lib/python2.7/dist-packages/pip/_vendor/__init__.py\", line 64, in <module>\n    vendored(\"cachecontrol\")\n  File \"/usr/lib/python2.7/dist-packages/pip/_vendor/__init__.py\", line 36, in vendored\n    __import__(modulename, globals(), locals(), level=0)\n  File \"/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/__init__.py\", line 9, in <module>\n  File \"/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/wrapper.py\", line 1, in <module>\n  File \"/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/adapter.py\", line 3, in <module>\n  File \"/usr/share/python-wheels/requests-2.9.1-py2.py3-none-any.whl/requests/__init__.py\", line 53, in <module>\n  File \"/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/contrib/pyopenssl.py\", line 54, in <module>\n  File \"/usr/lib/python2.7/dist-packages/OpenSSL/__init__.py\", line 8, in <module>\n    from OpenSSL import rand, crypto, SSL\n  File \"/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py\", line 118, in <module>\n    SSL_ST_INIT = _lib.SSL_ST_INIT\nAttributeError: 'module' object has no attribute 'SSL_ST_INIT'\n"}
	to retry, use: --limit @/home/vagrant/bifrost/playbooks/install.retry