Merge pull request #198 from ACXLM/fix/load-kube-config

fix cfg is none, load kube config error

Author: k8s-ci-robot

Diff for: config/kube_config.py

@@ -663,9 +663,8 @@ def load_config(self, path):
             for item in ('clusters', 'contexts', 'users'):
                 config_merged[item] = []
             self.config_merged = ConfigNode(path, config_merged, path)
-
         for item in ('clusters', 'contexts', 'users'):
-            self._merge(item, config.get(item, {}), path)
+            self._merge(item, config.get(item, []) or [], path)
         self.config_files[path] = config
 
     def _merge(self, item, add_cfg, path):

Diff for: config/kube_config_test.py

@@ -1353,7 +1353,7 @@ def test__get_kube_config_loader_for_yaml_file_persist(self):
         actual = _get_kube_config_loader_for_yaml_file(config_file,
                                                        persist_config=True)
         self.assertTrue(callable(actual._config_persister))
-        self.assertEquals(actual._config_persister.__name__, "save_changes")
+        self.assertEqual(actual._config_persister.__name__, "save_changes")
 
     def test__get_kube_config_loader_file_no_persist(self):
         expected = FakeConfig(host=TEST_HOST,
@@ -1553,6 +1553,26 @@ class TestKubeConfigMerger(BaseTestCase):
             }
         ]
     }
+    TEST_KUBE_CONFIG_PART6 = {
+        "current-context": "no_user",
+        "contexts": [
+            {
+                "name": "no_user",
+                "context": {
+                    "cluster": "default"
+                }
+            },
+        ],
+        "clusters": [
+            {
+                "name": "default",
+                "cluster": {
+                    "server": TEST_HOST
+                }
+            },
+        ],
+        "users": None
+    }
 
     def _create_multi_config(self):
         files = []
@@ -1561,7 +1581,8 @@ def _create_multi_config(self):
                 self.TEST_KUBE_CONFIG_PART2,
                 self.TEST_KUBE_CONFIG_PART3,
                 self.TEST_KUBE_CONFIG_PART4,
-                self.TEST_KUBE_CONFIG_PART5):
+                self.TEST_KUBE_CONFIG_PART5,
+                self.TEST_KUBE_CONFIG_PART6):
             files.append(self._create_temp_file(yaml.safe_dump(part)))
         return ENV_KUBECONFIG_PATH_SEPARATOR.join(files)