Use identity api version 3 for OSC plugin tests

Explicitly use `--os-identity-api-version` option
for Baremetal OSC plugin functional tests
taking it's value from config.

Change-Id: I3eeb7cd029fe440684a5736eeb3b5788d1666a08
Closes-Bug: #1646837

ironicclient/tests/functional/base.py

@@ -148,6 +148,22 @@ class FunctionalTestBase(base.ClientTestBase):
             return self.client.cmd_with_auth('ironic',
                                              action, flags, params)
 
+    def _ironic_osc(self, action, flags='', params=''):
+        """Execute baremetal commands via OpenStack Client."""
+        config = self._get_config()
+        id_api_version = config.get('functional', 'os_identity_api_version')
+        flags += ' --os-identity-api-version {0}'.format(id_api_version)
+
+        for keystone_object in 'user', 'project':
+            domain_attr = 'os_%s_domain_id' % keystone_object
+            if hasattr(self, domain_attr):
+                flags += ' --os-%(ks_obj)s-domain-id %(value)s' % {
+                    'ks_obj': keystone_object,
+                    'value': getattr(self, domain_attr)
+                }
+        return self.client.cmd_with_auth(
+            'openstack', action, flags, params)
+
     def ironic(self, action, flags='', params='', parse=True):
         """Return parsed list of dicts with basic item info.
 

ironicclient/tests/functional/osc/v1/base.py

@@ -21,7 +21,7 @@ from ironicclient.tests.functional import base
 class TestCase(base.FunctionalTestBase):
 
     def openstack(self, *args, **kwargs):
-        return self.clients.openstack(*args, **kwargs)
+        return self._ironic_osc(*args, **kwargs)
 
     def get_opts(self, fields=None, output_format='json'):
         """Get options for OSC output fields format.

tools/run_functional.sh

@@ -16,6 +16,7 @@ cat <<END >$CONFIG_FILE
 [functional]
 api_version = 1
 os_auth_url=$OS_AUTH_URL
+os_identity_api_version = $OS_IDENTITY_API_VERSION
 os_username=$OS_USERNAME
 os_password=$OS_PASSWORD
 os_tenant_name=$OS_TENANT_NAME