Description of problem:
When using SSL in undercloud, urllib3 display InsecurePlatformWarning messages like this:
/usr/lib/python2.7/site-packages/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Use SSL in undercloud.conf
2. Install the undercloud
3. While installing, the warning messages will be displayed and each time the openstack command is ran, that warning message will be displayed again

Actual results:
/usr/lib/python2.7/site-packages/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
+--------------------------------------+--------------------+----------------------------+-------+----------------+---------------------------+
| id                                   | agent_type         | host                       | alive | admin_state_up | binary                    |
+--------------------------------------+--------------------+----------------------------+-------+----------------+---------------------------+
| 79f0a0e2-9f22-479c-802d-fd0d67dcb44d | Open vSwitch agent | osp-director.openstack.org | :-)   | True           | neutron-openvswitch-agent |
| d8392383-caf7-4b4b-9c36-cc681b0430c2 | DHCP agent         | osp-director.openstack.org | :-)   | True           | neutron-dhcp-agent        |
+--------------------------------------+--------------------+----------------------------+-------+----------------+---------------------------+

Expected results:
+--------------------------------------+--------------------+----------------------------+-------+----------------+---------------------------+
| id                                   | agent_type         | host                       | alive | admin_state_up | binary                    |
+--------------------------------------+--------------------+----------------------------+-------+----------------+---------------------------+
| 79f0a0e2-9f22-479c-802d-fd0d67dcb44d | Open vSwitch agent | osp-director.openstack.org | :-)   | True           | neutron-openvswitch-agent |
| d8392383-caf7-4b4b-9c36-cc681b0430c2 | DHCP agent         | osp-director.openstack.org | :-)   | True           | neutron-dhcp-agent        |
+--------------------------------------+--------------------+----------------------------+-------+----------------+---------------------------+

Additional info: