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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
from oslo.config import cfg
from oslo.utils import timeutils
import requests
from nova.scheduler.filters import trusted_filter
from nova import test
from nova.tests.scheduler import fakes
CONF = cfg.CONF
@mock.patch.object(trusted_filter.AttestationService, '_request')
class TestTrustedFilter(test.NoDBTestCase):
def setUp(self):
super(TestTrustedFilter, self).setUp()
# TrustedFilter's constructor creates the attestation cache, which
# calls to get a list of all the compute nodes.
fake_compute_nodes = [
{'hypervisor_hostname': 'node1',
'service': {'host': 'host1'},
}
]
with mock.patch('nova.db.compute_node_get_all') as mocked:
mocked.return_value = fake_compute_nodes
self.filt_cls = trusted_filter.TrustedFilter()
def test_trusted_filter_default_passes(self, req_mock):
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024}}
host = fakes.FakeHostState('host1', 'node1', {})
self.assertTrue(self.filt_cls.host_passes(host, filter_properties))
self.assertFalse(req_mock.called)
def test_trusted_filter_trusted_and_trusted_passes(self, req_mock):
oat_data = {"hosts": [{"host_name": "node1",
"trust_lvl": "trusted",
"vtime": timeutils.isotime()}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'trusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
self.assertTrue(self.filt_cls.host_passes(host, filter_properties))
req_mock.assert_called_once_with("POST", "PollHosts", ["node1"])
def test_trusted_filter_trusted_and_untrusted_fails(self, req_mock):
oat_data = {"hosts": [{"host_name": "node1",
"trust_lvl": "untrusted",
"vtime": timeutils.isotime()}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'trusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
self.assertFalse(self.filt_cls.host_passes(host, filter_properties))
def test_trusted_filter_untrusted_and_trusted_fails(self, req_mock):
oat_data = {"hosts": [{"host_name": "node",
"trust_lvl": "trusted",
"vtime": timeutils.isotime()}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'untrusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
self.assertFalse(self.filt_cls.host_passes(host, filter_properties))
def test_trusted_filter_untrusted_and_untrusted_passes(self, req_mock):
oat_data = {"hosts": [{"host_name": "node1",
"trust_lvl": "untrusted",
"vtime": timeutils.isotime()}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'untrusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
self.assertTrue(self.filt_cls.host_passes(host, filter_properties))
def test_trusted_filter_update_cache(self, req_mock):
oat_data = {"hosts": [{"host_name": "node1",
"trust_lvl": "untrusted",
"vtime": timeutils.isotime()}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'untrusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
self.filt_cls.host_passes(host, filter_properties) # Fill the caches
req_mock.reset_mock()
self.filt_cls.host_passes(host, filter_properties)
self.assertFalse(req_mock.called)
req_mock.reset_mock()
timeutils.set_time_override(timeutils.utcnow())
timeutils.advance_time_seconds(
CONF.trusted_computing.attestation_auth_timeout + 80)
self.filt_cls.host_passes(host, filter_properties)
self.assertTrue(req_mock.called)
timeutils.clear_time_override()
def test_trusted_filter_update_cache_timezone(self, req_mock):
oat_data = {"hosts": [{"host_name": "node1",
"trust_lvl": "untrusted",
"vtime": "2012-09-09T05:10:40-04:00"}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'untrusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
timeutils.set_time_override(
timeutils.normalize_time(
timeutils.parse_isotime("2012-09-09T09:10:40Z")))
self.filt_cls.host_passes(host, filter_properties) # Fill the caches
req_mock.reset_mock()
self.filt_cls.host_passes(host, filter_properties)
self.assertFalse(req_mock.called)
req_mock.reset_mock()
timeutils.advance_time_seconds(
CONF.trusted_computing.attestation_auth_timeout - 10)
self.filt_cls.host_passes(host, filter_properties)
self.assertFalse(req_mock.called)
timeutils.clear_time_override()
def test_trusted_filter_combine_hosts(self, req_mock):
fake_compute_nodes = [
{'hypervisor_hostname': 'node1',
'service': {'host': 'host1'},
},
{'hypervisor_hostname': 'node2',
'service': {'host': 'host2'},
},
]
with mock.patch('nova.db.compute_node_get_all') as mocked:
mocked.return_value = fake_compute_nodes
self.filt_cls = trusted_filter.TrustedFilter()
oat_data = {"hosts": [{"host_name": "node1",
"trust_lvl": "untrusted",
"vtime": "2012-09-09T05:10:40-04:00"}]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'trusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'node1', {})
self.filt_cls.host_passes(host, filter_properties) # Fill the caches
req_mock.assert_called_once_with("POST", "PollHosts",
["node1", "node2"])
def test_trusted_filter_trusted_and_locale_formated_vtime_passes(self,
req_mock):
oat_data = {"hosts": [{"host_name": "host1",
"trust_lvl": "trusted",
"vtime": timeutils.strtime(fmt="%c")},
{"host_name": "host2",
"trust_lvl": "trusted",
"vtime": timeutils.strtime(fmt="%D")},
# This is just a broken date to ensure that
# we're not just arbitrarily accepting any
# date format.
]}
req_mock.return_value = requests.codes.OK, oat_data
extra_specs = {'trust:trusted_host': 'trusted'}
filter_properties = {'context': mock.sentinel.ctx,
'instance_type': {'memory_mb': 1024,
'extra_specs': extra_specs}}
host = fakes.FakeHostState('host1', 'host1', {})
bad_host = fakes.FakeHostState('host2', 'host2', {})
self.assertTrue(self.filt_cls.host_passes(host, filter_properties))
self.assertFalse(self.filt_cls.host_passes(bad_host,
filter_properties))
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