03eea64ef9
This patch allows VMs on Neutron networks to switch from Neutron metadata proxy/agent to NSX native metadata proxy/agent. It also includes admin tool to enable native metadata on existing Neutron networks. Change-Id: I0a0a025dad765106f7a6e593266d412f921f96fa
259 lines
9.5 KiB
Python
259 lines
9.5 KiB
Python
# Copyright (c) 2015 VMware, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import copy
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import mock
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import unittest
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from oslo_config import cfg
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from requests import exceptions as requests_exceptions
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from vmware_nsx.nsxlib.v3 import client as nsx_client
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from vmware_nsx.nsxlib.v3 import cluster as nsx_cluster
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NSX_USER = 'admin'
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NSX_PASSWORD = 'default'
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NSX_MANAGER = '1.2.3.4'
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NSX_INSECURE = False
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NSX_CERT = '/opt/stack/certs/nsx.pem'
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NSX_HTTP_TIMEOUT = 10
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NSX_HTTP_READ_TIMEOUT = 180
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NSX_TZ_NAME = 'default transport zone'
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NSX_DHCP_PROFILE_ID = 'default dhcp profile'
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NSX_METADATA_PROXY_ID = 'default metadata proxy'
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V3_CLIENT_PKG = 'vmware_nsx.nsxlib.v3.client'
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BRIDGE_FNS = ['create_resource', 'delete_resource',
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'update_resource', 'get_resource']
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class NsxLibTestCase(unittest.TestCase):
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@classmethod
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def setup_conf_overrides(cls):
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cfg.CONF.set_override('default_overlay_tz', NSX_TZ_NAME, 'nsx_v3')
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cfg.CONF.set_override('native_dhcp_metadata', False, 'nsx_v3')
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cfg.CONF.set_override('dhcp_profile_uuid',
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NSX_DHCP_PROFILE_ID, 'nsx_v3')
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cfg.CONF.set_override('metadata_proxy_uuid',
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NSX_METADATA_PROXY_ID, 'nsx_v3')
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cfg.CONF.set_override('nsx_api_user', NSX_USER, 'nsx_v3')
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cfg.CONF.set_override('nsx_api_password', NSX_PASSWORD, 'nsx_v3')
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cfg.CONF.set_override('nsx_api_managers', [NSX_MANAGER], 'nsx_v3')
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cfg.CONF.set_override('insecure', NSX_INSECURE, 'nsx_v3')
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cfg.CONF.set_override('ca_file', NSX_CERT, 'nsx_v3')
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cfg.CONF.set_override('http_timeout', NSX_HTTP_TIMEOUT, 'nsx_v3')
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cfg.CONF.set_override('http_read_timeout',
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NSX_HTTP_READ_TIMEOUT, 'nsx_v3')
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cfg.CONF.set_override('network_scheduler_driver',
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'neutron.scheduler.dhcp_agent_scheduler.AZAwareWeightScheduler')
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def setUp(self, *args, **kwargs):
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super(NsxLibTestCase, self).setUp()
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NsxClientTestCase.setup_conf_overrides()
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# print diffs when assert comparisons fail
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self.maxDiff = None
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class MemoryMockAPIProvider(nsx_cluster.AbstractHTTPProvider):
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"""Acts as a HTTP provider for mocking which is backed
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by a MockRequestSessionApi.
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"""
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def __init__(self, mock_session_api):
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self._store = mock_session_api
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@property
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def provider_id(self):
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return "Memory mock API"
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def validate_connection(self, cluster_api, endpoint, conn):
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return
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def new_connection(self, cluster_api, provider):
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# all callers use the same backing
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return self._store
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def is_connection_exception(self, exception):
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return isinstance(exception, requests_exceptions.ConnectionError)
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class NsxClientTestCase(NsxLibTestCase):
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class MockBridge(object):
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def __init__(self, api_client):
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self._client = api_client
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def get_resource(self, resource):
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return nsx_client.get_resource(
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resource, client=self._client)
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def create_resource(self, resource, data):
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return nsx_client.create_resource(
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resource, data, client=self._client)
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def delete_resource(self, resource):
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return nsx_client.delete_resource(
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resource, client=self._client)
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def update_resource(self, resource, data):
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return nsx_client.update_resource(
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resource, data, client=self._client)
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class MockNSXClusteredAPI(nsx_cluster.NSXClusteredAPI):
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def __init__(self, session_response=None):
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super(NsxClientTestCase.MockNSXClusteredAPI, self).__init__(
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http_provider=NsxClientTestCase.MockHTTPProvider(
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session_response=session_response))
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self._record = mock.Mock()
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def record_call(self, request, **kwargs):
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verb = request.method.lower()
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# filter out requests specific attributes
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checked_kwargs = copy.copy(kwargs)
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del checked_kwargs['proxies']
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del checked_kwargs['stream']
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if 'allow_redirects' in checked_kwargs:
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del checked_kwargs['allow_redirects']
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for attr in ['url', 'body']:
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checked_kwargs[attr] = getattr(request, attr, None)
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# remove headers we don't need to verify
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checked_kwargs['headers'] = copy.copy(request.headers)
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for header in ['Accept-Encoding', 'User-Agent',
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'Connection', 'Authorization',
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'Content-Length']:
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if header in checked_kwargs['headers']:
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del checked_kwargs['headers'][header]
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checked_kwargs['headers'] = request.headers
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# record the call in the mock object
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method = getattr(self._record, verb)
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method(**checked_kwargs)
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def assert_called_once(self, verb, **kwargs):
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mock_call = getattr(self._record, verb.lower())
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mock_call.assert_called_once_with(**kwargs)
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@property
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def recorded_calls(self):
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return self._record
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class MockHTTPProvider(nsx_cluster.NSXRequestsHTTPProvider):
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def __init__(self, session_response=None):
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super(NsxClientTestCase.MockHTTPProvider, self).__init__()
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self._session_response = session_response
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def new_connection(self, cluster_api, provider):
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# wrapper the session so we can intercept and record calls
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session = super(NsxClientTestCase.MockHTTPProvider,
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self).new_connection(cluster_api, provider)
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mock_adapter = mock.Mock()
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session_send = session.send
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def _adapter_send(request, **kwargs):
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# record calls at the requests HTTP adapter level
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mock_response = mock.Mock()
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mock_response.history = None
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# needed to bypass requests internal checks for mock
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mock_response.raw._original_response = {}
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# record the request for later verification
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cluster_api.record_call(request, **kwargs)
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return mock_response
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def _session_send(request, **kwargs):
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# calls at the Session level
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if self._session_response:
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# consumer has setup a response for the session
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cluster_api.record_call(request, **kwargs)
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return (self._session_response()
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if hasattr(self._session_response, '__call__')
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else self._session_response)
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# bypass requests redirect handling for mock
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kwargs['allow_redirects'] = False
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# session send will end up calling adapter send
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return session_send(request, **kwargs)
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mock_adapter.send = _adapter_send
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session.send = _session_send
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def _mock_adapter(*args, **kwargs):
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# use our mock adapter rather than requests adapter
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return mock_adapter
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session.get_adapter = _mock_adapter
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return session
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def validate_connection(self, cluster_api, endpoint, conn):
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assert conn is not None
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def mock_nsx_clustered_api(self, session_response=None):
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return NsxClientTestCase.MockNSXClusteredAPI(
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session_response=session_response)
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def mocked_resource(self, resource_class, mock_validate=True,
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session_response=None):
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mocked = resource_class(nsx_client.NSX3Client(
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self.mock_nsx_clustered_api(session_response=session_response)))
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if mock_validate:
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mock.patch.object(mocked._client, '_validate_result').start()
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return mocked
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def new_mocked_client(self, client_class, mock_validate=True,
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session_response=None, mock_cluster=None,
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**kwargs):
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client = client_class(mock_cluster or self.mock_nsx_clustered_api(
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session_response=session_response), **kwargs)
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if mock_validate:
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mock.patch.object(client, '_validate_result').start()
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new_client_for = client.new_client_for
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def _new_client_for(*args, **kwargs):
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sub_client = new_client_for(*args, **kwargs)
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if mock_validate:
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mock.patch.object(sub_client, '_validate_result').start()
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return sub_client
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client.new_client_for = _new_client_for
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return client
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def mocked_rest_fns(self, module, attr, mock_validate=True,
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mock_cluster=None):
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client = nsx_client.NSX3Client(
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mock_cluster or self.mock_nsx_clustered_api())
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mocked_fns = NsxClientTestCase.MockBridge(client)
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mocked_fns.JSONRESTClient = nsx_client.JSONRESTClient
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if mock_validate:
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mock.patch.object(client, '_validate_result').start()
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mock.patch.object(module, attr, new=mocked_fns).start()
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return mocked_fns
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