Add base support for SSL for Openstack services

- Update address function to use "tls" config option and set scheme to 'https'.
  Also we check, that service is in list of services, which support TLS.
- Updated function for generation Environment, which will be used by
  openstackclient. Now 'https' scheme will be used if 'tls' is enabled.
  Also was added new variable for storing path for file with CA
  certificate. It was done in such way, because openstackclient
  does not support setting --insecure via Environment.
- Implementation of httpGet was changed to support 'https' endpoints.
  Now requests.get method uses 'https' scheme with verify=False, if 'tls'
  is enabled.

Change-Id: I88bc21571589dcd4c31bb5ce5015a75676ed2d85
(cherry picked from commit 70ae2bc84a)

fuel_ccp_entrypoint/start_script.py

@@ -5,6 +5,7 @@ import argparse
 import functools
 import logging
 import os
+import os.path
 import pwd
 import signal
 import socket
@@ -178,8 +179,17 @@ def openstackclient_preexec_fn():
         os.environ["OS_PASSWORD"] = VARIABLES['openstack']['user_password']
         os.environ["OS_USERNAME"] = VARIABLES['openstack']['user_name']
         os.environ["OS_PROJECT_NAME"] = VARIABLES['openstack']['project_name']
-        os.environ["OS_AUTH_URL"] = 'http://%s/v3' % address(
-            'keystone', VARIABLES['keystone']['admin_port'])
+        scheme = 'http'
+        if VARIABLES['security']['tls']['enabled']:
+            scheme = 'https'
+            # Pass CA cert for using by client, because it's not possible to
+            # specify insecure via environment.
+            if not os.path.isfile(fname):
+                with open(CACERT, 'w') as tmp_cert:
+                    tmp_cert.write(VARIABLES['security']['tls']['ca_cert'])
+            os.environ["OS_CACERT"] = CACERT
+        os.environ["OS_AUTH_URL"] = '%s://%s/v3' % (scheme, address(
+            'keystone', VARIABLES['keystone']['admin_port']))
     return result
 
 
@@ -216,6 +226,10 @@ def get_ingress_host(ingress_name):
 def address(service, port=None, external=False, with_scheme=False):
     addr = None
     scheme = 'http'
+    TLS_SERVICES = "keystone,glance,glance,horizon,nova,neutron,cinder,heat"
+    if ((VARIABLES['security']['tls']['enabled'] and
+         service.split('-')[0] in TLS_SERVICES.split(','))):
+        scheme = 'https'
     if external:
         if not port:
             raise RuntimeError('Port config is required for external address')
@@ -504,11 +518,18 @@ def run_probe(probe):
     if probe["type"] == "exec":
         run_cmd(probe["command"])
     elif probe["type"] == "httpGet":
-        url = "http://{}:{}{}".format(
+        scheme = 'http'
+        verify = True
+        if VARIABLES['security']['tls']['enabled']:
+            scheme = 'https'
+            # disable SSL check for probe request
+            verify = False
+        url = "{}://{}:{}{}".format(
+            scheme,
             VARIABLES["network_topology"]["private"]["address"],
             probe["port"],
             probe.get("path", "/"))
-        resp = requests.get(url)
+        resp = requests.get(url, verify=verify)
         resp.raise_for_status()