182 lines
8.7 KiB
Python
182 lines
8.7 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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import functools
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from oslo_utils import timeutils
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from nova import test
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from nova.tests import fixtures as nova_fixtures
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from nova.tests.functional import fixtures as func_fixtures
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from nova.tests.functional import integrated_helpers
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from nova.tests.unit.image import fake as fake_image
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from nova.tests.unit import policy_fixture
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from nova import utils
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class HostStatusPolicyTestCase(test.TestCase,
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integrated_helpers.InstanceHelperMixin):
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"""Tests host_status policies behavior in the API."""
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host_status_rule = 'os_compute_api:servers:show:host_status'
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host_status_unknown_only_rule = (
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'os_compute_api:servers:show:host_status:unknown-only')
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image_uuid = '155d900f-4e14-4e4c-a73d-069cbf4541e6'
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def setUp(self):
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super(HostStatusPolicyTestCase, self).setUp()
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# Setup the standard fixtures.
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fake_image.stub_out_image_service(self)
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self.addCleanup(fake_image.FakeImageService_reset)
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self.useFixture(nova_fixtures.NeutronFixture(self))
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self.useFixture(func_fixtures.PlacementFixture())
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self.useFixture(policy_fixture.RealPolicyFixture())
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# Start the services.
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self.start_service('conductor')
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self.start_service('scheduler')
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self.compute = self.start_service('compute')
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api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
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api_version='v2.1'))
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self.api = api_fixture.api
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self.admin_api = api_fixture.admin_api
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# The host_status field is returned starting in microversion 2.16.
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self.api.microversion = '2.16'
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self.admin_api.microversion = '2.16'
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def _setup_host_status_unknown_only_test(self, networks=None):
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# Set policy such that admin are allowed to see any/all host status and
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# all users are allowed to see UNKNOWN host status only.
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self.policy.set_rules({
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self.host_status_rule: 'rule:admin_api',
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self.host_status_unknown_only_rule: '@'},
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# This is needed to avoid nulling out the rest of default policy.
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overwrite=False)
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# Create a server as a normal non-admin user.
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# In microversion 2.36 the /images proxy API was deprecated, so
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# specifiy the image_uuid directly.
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kwargs = {'image_uuid': self.image_uuid}
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if networks:
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# Starting with microversion 2.37 the networks field is required.
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kwargs['networks'] = networks
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server = self._build_minimal_create_server_request(
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self.api, 'test_host_status_unknown_only', **kwargs)
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server = self.api.post_server({'server': server})
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server = self._wait_for_state_change(self.admin_api, server, 'ACTIVE')
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return server
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@staticmethod
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def _get_server(resp):
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# Get a server whether it's a single server or a list of one server.
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server = resp if not isinstance(resp, list) else resp[0]
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# The PUT /servers/{server_id} response has a 'server' attribute.
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if 'server' in server:
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server = server['server']
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return server
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def _set_server_state_active(self, server):
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# Needed for being able to issue multiple rebuild requests while the
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# compute service is down.
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reset_state = {'os-resetState': {'state': 'active'}}
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self.admin_api.post_server_action(server['id'], reset_state)
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def _test_host_status_unknown_only(self, admin_func, func):
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# Get server as admin.
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server = self._get_server(admin_func())
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# We need to wait for ACTIVE if this was a post rebuild server action,
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# else a subsequent rebuild request will fail with a 409 in the API.
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self._wait_for_state_change(self.admin_api, server, 'ACTIVE')
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# Verify admin can see the host status UP.
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self.assertEqual('UP', server['host_status'])
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# Get server as normal non-admin user.
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server = self._get_server(func())
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self._wait_for_state_change(self.admin_api, server, 'ACTIVE')
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# Verify non-admin do not receive the host_status field because it is
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# not UNKNOWN.
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self.assertNotIn('host_status', server)
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# Stop the compute service to trigger UNKNOWN host_status.
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self.compute.stop()
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# Advance time by 30 minutes so nova considers service as down.
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minutes_from_now = timeutils.utcnow() + datetime.timedelta(minutes=30)
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timeutils.set_time_override(override_time=minutes_from_now)
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self.addCleanup(timeutils.clear_time_override)
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# Get server as admin.
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server = self._get_server(admin_func())
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# Now that the compute service is down, the rebuild will not ever
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# complete. But we're only interested in what would be returned from
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# the API post rebuild action, so reset the state to ACTIVE to allow
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# the next rebuild request to go through without a 409 error.
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self._set_server_state_active(server)
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# Verify admin can see the host status UNKNOWN.
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self.assertEqual('UNKNOWN', server['host_status'])
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# Get server as normal non-admin user.
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server = self._get_server(func())
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self._set_server_state_active(server)
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# Verify non-admin can see the host status UNKNOWN too.
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self.assertEqual('UNKNOWN', server['host_status'])
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# Now, adjust the policy to make it so only admin are allowed to see
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# UNKNOWN host status only.
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self.policy.set_rules({
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self.host_status_unknown_only_rule: 'rule:admin_api'},
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overwrite=False)
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# Get server as normal non-admin user.
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server = self._get_server(func())
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self._set_server_state_active(server)
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# Verify non-admin do not receive the host_status field.
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self.assertNotIn('host_status', server)
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# Verify that admin will not receive ths host_status field if the
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# API microversion < 2.16.
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with utils.temporary_mutation(self.admin_api, microversion='2.15'):
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server = self._get_server(admin_func())
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self.assertNotIn('host_status', server)
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def test_get_server_host_status_unknown_only(self):
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server = self._setup_host_status_unknown_only_test()
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# GET /servers/{server_id}
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admin_func = functools.partial(self.admin_api.get_server, server['id'])
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func = functools.partial(self.api.get_server, server['id'])
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self._test_host_status_unknown_only(admin_func, func)
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def test_get_servers_detail_host_status_unknown_only(self):
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self._setup_host_status_unknown_only_test()
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# GET /servers/detail
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admin_func = functools.partial(self.admin_api.get_servers)
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func = functools.partial(self.api.get_servers)
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self._test_host_status_unknown_only(admin_func, func)
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def test_put_server_host_status_unknown_only(self):
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# The host_status field is returned from PUT /servers/{server_id}
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# starting in microversion 2.75.
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self.api.microversion = '2.75'
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self.admin_api.microversion = '2.75'
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server = self._setup_host_status_unknown_only_test(networks='none')
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# PUT /servers/{server_id}
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an_update = {'server': {'name': 'host-status-unknown-only'}}
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admin_func = functools.partial(self.admin_api.put_server, server['id'],
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an_update)
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func = functools.partial(self.api.put_server, server['id'], an_update)
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self._test_host_status_unknown_only(admin_func, func)
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def test_post_server_rebuild_host_status_unknown_only(self):
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# The host_status field is returned from POST
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# /servers/{server_id}/action (rebuild) starting in microversion 2.75.
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self.api.microversion = '2.75'
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self.admin_api.microversion = '2.75'
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server = self._setup_host_status_unknown_only_test(networks='none')
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# POST /servers/{server_id}/action (rebuild)
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rebuild = {'rebuild': {'imageRef': self.image_uuid}}
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admin_func = functools.partial(self.admin_api.post_server_action,
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server['id'], rebuild)
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func = functools.partial(self.api.post_server_action, server['id'],
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rebuild)
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self._test_host_status_unknown_only(admin_func, func)
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