Disable ssl verification while setting config for fuel_health

In case 'force_https' is turned on for fuel we must disable ssl cert
verification for code that performs http requests inside fuel
infrastructure (e.g. requests to nailgun). The verification is
meaningless by itself as we use self signed cert.

Change-Id: Ic47d91d1a59ef2741bfab8709ff0b0985fb1919d
Closes-Bug: #1538977

fuel_health/config.py

@@ -583,6 +583,7 @@ class NailgunConfig(object):
         self.cluster_id = os.environ.get('CLUSTER_ID', None)
         self.req_session = requests.Session()
         self.req_session.trust_env = False
+        self.req_session.verify = False
         if token:
             self.req_session.headers.update({'X-Auth-Token': token})
         if parse: