Accept 'valid_interfaces' in client setup

The consumer of ironicclient may be deriving their get_client kwargs
from config inherited from ksa, where the 'interface' option has been
deprecated in favor of 'valid_interfaces'. To accomodate this, we accept
'valid_interfaces' as a kwarg, giving it precedence over 'interface'.
However, we still accept 'interface', as the consumer may be deriving
kwargs from a non-conf source (such as an already-created ksa Adapter
where 'valid_interfaces' has already been translated to 'interfaces'.

Co-Authored-By: guang-yee <guang.yee@suse.com>

Change-Id: I3b6fa53005f143d34f03bb1ed71c0aa04b7fce7b

ironicclient/client.py

@@ -101,9 +101,11 @@ def get_client(api_version, auth_type=None, os_ironic_api_version=None,
                                                    **session_opts)
 
     # Make sure we also pass the endpoint interface to the HTTP client.
-    # NOTE(gyee): we are supposed to be using valid_interfaces as interface
-    # is deprecated.
-    interface = kwargs.get('interface')
+    # NOTE(gyee/efried): 'interface' in ksa config is deprecated in favor of
+    # 'valid_interfaces'. So, since the caller may be deriving kwargs from
+    # conf, accept 'valid_interfaces' first. But keep support for 'interface',
+    # in case the caller is deriving kwargs from, say, an existing Adapter.
+    interface = kwargs.get('valid_interfaces', kwargs.get('interface'))
 
     endpoint = kwargs.get('endpoint')
     if not endpoint:

ironicclient/tests/unit/test_client.py

@@ -164,6 +164,36 @@ def test_get_client_and_interface(self):
         self._test_get_client(warn_mock_call_count=4,
                               expected_interface='internal', **kwargs)
 
+    def test_get_client_and_valid_interfaces(self):
+        kwargs = {
+            'os_project_name': 'PROJECT_NAME',
+            'os_username': 'USERNAME',
+            'os_password': 'PASSWORD',
+            'os_auth_url': 'http://localhost:35357/v2.0',
+            'os_auth_token': '',
+            'os_service_type': '',
+            'valid_interfaces': ['internal', 'public']
+        }
+        self._test_get_client(warn_mock_call_count=4,
+                              expected_interface=['internal', 'public'],
+                              **kwargs)
+
+    def test_get_client_and_interface_and_valid_interfaces(self):
+        """Ensure 'valid_interfaces' takes precedence over 'interface'."""
+        kwargs = {
+            'os_project_name': 'PROJECT_NAME',
+            'os_username': 'USERNAME',
+            'os_password': 'PASSWORD',
+            'os_auth_url': 'http://localhost:35357/v2.0',
+            'os_auth_token': '',
+            'os_service_type': '',
+            'interface': ['ignored'],
+            'valid_interfaces': ['internal', 'public']
+        }
+        self._test_get_client(warn_mock_call_count=4,
+                              expected_interface=['internal', 'public'],
+                              **kwargs)
+
     def test_get_client_with_region_no_auth_token(self):
         kwargs = {
             'os_project_name': 'PROJECT_NAME',

releasenotes/notes/accept-valid_interfaces-3b8f5e3e362e04cd.yaml

@@ -0,0 +1,11 @@
+---
+features:
+  - |
+    The consumer of ironicclient may be deriving their ``get_client`` kwargs
+    from config inherited from ksa, where the ``interface`` option has been
+    deprecated in favor of ``valid_interfaces``. To accomodate this, we now
+    accept ``valid_interfaces`` as a kwarg, giving it precedence over
+    ``interface``. However, we still accept ``interface``, as the consumer may
+    be deriving kwargs from a non-conf source (such as an already-created ksa
+    Adapter where ``valid_interfaces`` has already been translated to
+    ``interfaces``.