Add ssl support for manila API access

Currently, Manila does not support secure access the manila
APIs, obviously, this is a defect for manila service. This
change is to add ssl support for manila project.

Closes-bug: #1732844
Closes-bug: #1730529
Change-Id: I2dbc52ce95933e648cc065b2b2112788bf4484d0

doc/source/configuration/tables/manila-ca.inc

@@ -18,9 +18,5 @@
      - Description
    * - **[DEFAULT]**
      -
-   * - ``ssl_ca_file`` = ``None``
-     - (String) CA certificate file to use to verify connecting clients.
-   * - ``ssl_cert_file`` = ``None``
-     - (String) Certificate file to use when starting the server securely.
-   * - ``ssl_key_file`` = ``None``
-     - (String) Private key file to use when starting the server securely.
+   * - ``osapi_share_use_ssl`` = ``False``
+     - (Boolean) Wraps the socket in a SSL context if True is set.

manila/service.py

@@ -60,6 +60,10 @@ service_opts = [
     cfg.IntOpt('osapi_share_workers',
                default=1,
                help='Number of workers for OpenStack Share API service.'),
+    cfg.BoolOpt('osapi_share_use_ssl',
+                default=False,
+                help='Wraps the socket in a SSL context if True is set. '
+                     'A certificate file and key file must be specified.'),
 ]
 
 CONF = cfg.CONF
@@ -290,6 +294,7 @@ class WSGIService(service.ServiceBase):
         self.host = getattr(CONF, '%s_listen' % name, "0.0.0.0")
         self.port = getattr(CONF, '%s_listen_port' % name, 0)
         self.workers = getattr(CONF, '%s_workers' % name, None)
+        self.use_ssl = getattr(CONF, '%s_use_ssl' % name, False)
         if self.workers is not None and self.workers < 1:
             LOG.warning(
                 "Value of config option %(name)s_workers must be integer "
@@ -302,6 +307,7 @@ class WSGIService(service.ServiceBase):
             self.app,
             host=self.host,
             port=self.port,
+            use_ssl=self.use_ssl
         )
 
     def _get_manager(self):

manila/tests/test_service.py

@@ -226,3 +226,15 @@ class TestWSGIService(test.TestCase):
         self.test_service.start()
         self.assertGreater(self.test_service.server._pool.size, 0)
         wsgi.Loader.load_app.assert_called_once_with("test_service")
+
+    @mock.patch('oslo_service.wsgi.Server')
+    @mock.patch('oslo_service.wsgi.Loader')
+    def test_ssl_enabled(self, mock_loader, mock_server):
+        self.override_config('osapi_share_use_ssl', True)
+
+        service.WSGIService("osapi_share")
+        mock_server.assert_called_once_with(mock.ANY, mock.ANY, mock.ANY,
+                                            port=mock.ANY, host=mock.ANY,
+                                            use_ssl=True)
+
+        self.assertTrue(mock_loader.called)