Set default OS_VOLUME_API_VERSION to '2'

Cinder API v1.1 is deprecated and will be removed. Switching to API v2 in
cinderclient makes it works well with new API after API v1 will be
removed.

Change-Id: I639f4b54dc7e220e8e351113a4de1dff104b50a7

cinderclient/shell.py

@@ -52,7 +52,7 @@ import six.moves.urllib.parse as urlparse
 
 osprofiler_profiler = importutils.try_import("osprofiler.profiler")
 
-DEFAULT_OS_VOLUME_API_VERSION = "1"
+DEFAULT_OS_VOLUME_API_VERSION = "2"
 DEFAULT_CINDER_ENDPOINT_TYPE = 'publicURL'
 DEFAULT_CINDER_SERVICE_TYPE = 'volume'
 

cinderclient/tests/unit/test_auth_plugins.py

@@ -53,6 +53,17 @@ def mock_http_request(resp=None):
                             },
                         ],
                     },
+                    {
+                        "type": "volumev2",
+                        "endpoints": [
+                            {
+                                "region": "RegionOne",
+                                "adminURL": "http://localhost:8774/v2",
+                                "internalURL": "http://localhost:8774/v2",
+                                "publicURL": "http://localhost:8774/v2/",
+                            },
+                        ],
+                    },
                 ],
             },
         }