Set endpoint_override from endpoint with noauth

When noauth is used via the 'none' auth_type, the endpoint given
actually wants to get passed to keystoneauth as an endpoint_override for
that service, otherwise discovery from keystoneauth no worky.

Change-Id: I005a6d9b195a6cceae855d1392a29f12d6782a55

openstack/config/cloud_region.py

@@ -278,6 +278,11 @@ class CloudRegion(object):
         value = self._get_config('endpoint_override', service_type)
         if not value:
             value = self._get_config('endpoint', service_type)
+        if not value and self.config.get('auth_type') == 'none':
+            # If endpoint is given and we're using the none auth type,
+            # then the endpoint value is the endpoint_override for every
+            # service.
+            value = self.config.get('auth', {}).get('endpoint')
         return value
 
     def get_connect_retries(self, service_type):

openstack/tests/unit/cloud/test_operator_noauth.py

@@ -64,6 +64,26 @@ class TestOpenStackCloudOperatorNoAuth(base.TestCase):
 
         self.assert_calls()
 
+    def test_ironic_noauth_auth_endpoint(self):
+        """Test noauth selection for Ironic in OpenStackCloud
+
+        Sometimes people also write clouds.yaml files that look like this:
+
+        ::
+          clouds:
+            bifrost:
+              auth_type: "none"
+              endpoint: https://bare-metal.example.com
+        """
+        self.cloud_noauth = openstack.connect(
+            auth_type='none',
+            endpoint='https://bare-metal.example.com/v1',
+        )
+
+        self.cloud_noauth.list_machines()
+
+        self.assert_calls()
+
     def test_ironic_noauth_admin_token_auth_type(self):
         """Test noauth selection for Ironic in OpenStackCloud