Change v3 admin-password to v2.1

This patch changes v3 admin-password API to v2.1 and backport v3
unit test cases to v2.1.
The differences between v2 and v3 are described on the wiki page
https://wiki.openstack.org/wiki/NovaAPIv2tov3

Partially implements blueprint v2-on-v3-api
Change-Id: I167753eddd188120236c51bade549c907c8a8466

doc/v3/api_samples/os-admin-password/admin-password-change-password.json

@@ -1,5 +1,5 @@
 {
-    "change_password" : {
-        "admin_password" : "foo"
+    "changePassword" : {
+        "adminPass" : "foo"
     }
-}
+}

nova/api/openstack/compute/plugins/v3/admin_password.py

@@ -34,15 +34,18 @@ class AdminPasswordController(wsgi.Controller):
         super(AdminPasswordController, self).__init__(*args, **kwargs)
         self.compute_api = compute.API()
 
-    @wsgi.action('change_password')
-    @wsgi.response(204)
+    # TODO(eliqiao): Here should be 204(No content) instead of 202 by v2.1
+    # +micorversions because the password has been changed when returning
+    # a response.
+    @wsgi.action('changePassword')
+    @wsgi.response(202)
     @extensions.expected_errors((400, 404, 409, 501))
     @validation.schema(admin_password.change_password)
     def change_password(self, req, id, body):
         context = req.environ['nova.context']
         authorize(context)
 
-        password = body['change_password']['admin_password']
+        password = body['changePassword']['adminPass']
         instance = common.get_instance(self.compute_api, context, id,
                                        want_objects=True)
         try:
@@ -51,7 +54,7 @@ class AdminPasswordController(wsgi.Controller):
             raise exc.HTTPConflict(explanation=e.format_message())
         except exception.InstanceInvalidState as e:
             raise common.raise_http_conflict_for_instance_invalid_state(
-                e, 'change_password')
+                e, 'changePassword')
         except NotImplementedError:
             msg = _("Unable to set password on instance")
             raise exc.HTTPNotImplemented(explanation=msg)

nova/api/openstack/compute/schemas/v3/admin_password.py

@@ -18,15 +18,15 @@ from nova.api.validation import parameter_types
 change_password = {
     'type': 'object',
     'properties': {
-        'change_password': {
+        'changePassword': {
             'type': 'object',
             'properties': {
-                'admin_password': parameter_types.admin_password,
+                'adminPass': parameter_types.admin_password,
             },
-            'required': ['admin_password'],
+            'required': ['adminPass'],
             'additionalProperties': False,
         },
     },
-    'required': ['change_password'],
+    'required': ['changePassword'],
     'additionalProperties': False,
 }

nova/tests/api/openstack/compute/contrib/test_admin_password.py

@@ -15,7 +15,8 @@
 #    under the License.
 import webob
 
-from nova.api.openstack.compute.plugins.v3 import admin_password
+from nova.api.openstack.compute.plugins.v3 import admin_password \
+                                           as admin_password_v21
 from nova.compute import api as compute_api
 from nova import exception
 from nova.openstack.common import jsonutils
@@ -45,18 +46,19 @@ def fake_set_admin_password_not_implemented(self, context, instance,
     raise NotImplementedError()
 
 
-class AdminPasswordTest(test.NoDBTestCase):
+class AdminPasswordTestV21(test.NoDBTestCase):
+    plugin = admin_password_v21
 
     def setUp(self):
-        super(AdminPasswordTest, self).setUp()
+        super(AdminPasswordTestV21, self).setUp()
         self.stubs.Set(compute_api.API, 'set_admin_password',
                        fake_set_admin_password)
         self.stubs.Set(compute_api.API, 'get', fake_get)
         self.app = fakes.wsgi_app_v3(init_only=('servers',
-                                                admin_password.ALIAS))
+                                                self.plugin.ALIAS))
 
-    def _make_request(self, url, body):
-        req = webob.Request.blank(url)
+    def _make_request(self, body):
+        req = webob.Request.blank('/v3/servers/1/action')
         req.method = 'POST'
         req.body = jsonutils.dumps(body)
         req.content_type = 'application/json'
@@ -64,54 +66,46 @@ class AdminPasswordTest(test.NoDBTestCase):
         return res
 
     def test_change_password(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {'admin_password': 'test'}}
-        res = self._make_request(url, body)
-        self.assertEqual(res.status_int, 204)
+        body = {'changePassword': {'adminPass': 'test'}}
+        res = self._make_request(body)
+        self.assertEqual(res.status_int, 202)
 
     def test_change_password_empty_string(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {'admin_password': ''}}
-        res = self._make_request(url, body)
-        self.assertEqual(res.status_int, 204)
+        body = {'changePassword': {'adminPass': ''}}
+        res = self._make_request(body)
+        self.assertEqual(res.status_int, 202)
 
     def test_change_password_with_non_implement(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {'admin_password': 'test'}}
+        body = {'changePassword': {'adminPass': 'test'}}
         self.stubs.Set(compute_api.API, 'set_admin_password',
                        fake_set_admin_password_not_implemented)
-        res = self._make_request(url, body)
+        res = self._make_request(body)
         self.assertEqual(res.status_int, 501)
 
     def test_change_password_with_non_existed_instance(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {'admin_password': 'test'}}
+        body = {'changePassword': {'adminPass': 'test'}}
         self.stubs.Set(compute_api.API, 'get', fake_get_non_existent)
-        res = self._make_request(url, body)
+        res = self._make_request(body)
         self.assertEqual(res.status_int, 404)
 
     def test_change_password_with_non_string_password(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {'admin_password': 1234}}
-        res = self._make_request(url, body)
+        body = {'changePassword': {'adminPass': 1234}}
+        res = self._make_request(body)
         self.assertEqual(res.status_int, 400)
 
     def test_change_password_failed(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {'admin_password': 'test'}}
+        body = {'changePassword': {'adminPass': 'test'}}
         self.stubs.Set(compute_api.API, 'set_admin_password',
                        fake_set_admin_password_failed)
-        res = self._make_request(url, body)
+        res = self._make_request(body)
         self.assertEqual(res.status_int, 409)
 
     def test_change_password_without_admin_password(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': {}}
-        res = self._make_request(url, body)
+        body = {'changPassword': {}}
+        res = self._make_request(body)
         self.assertEqual(res.status_int, 400)
 
     def test_change_password_none(self):
-        url = '/v3/servers/1/action'
-        body = {'change_password': None}
-        res = self._make_request(url, body)
+        body = {'changePassword': None}
+        res = self._make_request(body)
         self.assertEqual(res.status_int, 400)

nova/tests/integrated/v3/api_samples/os-admin-password/admin-password-change-password.json.tpl

@@ -1,5 +1,5 @@
 {
-    "change_password" : {
-        "admin_password" : "%(password)s"
+    "changePassword" : {
+        "adminPass" : "%(password)s"
     }
 }

nova/tests/integrated/v3/test_admin_password.py

@@ -25,5 +25,5 @@ class AdminPasswordJsonTest(test_servers.ServersSampleBase):
         response = self._do_post('servers/%s/action' % uuid,
                                  'admin-password-change-password',
                                  subs)
-        self.assertEqual(response.status, 204)
+        self.assertEqual(response.status, 202)
         self.assertEqual(response.read(), "")