128 lines
5.3 KiB
Python
128 lines
5.3 KiB
Python
# 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 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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from ctypes import c_bool
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from kuryr_kubernetes.cni import health
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from kuryr_kubernetes.tests import base
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import mock
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import multiprocessing
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import os
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import tempfile
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from oslo_config import cfg
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class TestCNIHealthServer(base.TestCase):
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def setUp(self):
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super(TestCNIHealthServer, self).setUp()
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healthy = multiprocessing.Value(c_bool, True)
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self.srv = health.CNIHealthServer(healthy)
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self.srv.application.testing = True
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self.test_client = self.srv.application.test_client()
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@mock.patch('kuryr_kubernetes.cni.health._has_cap')
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@mock.patch('kuryr_kubernetes.cni.health.CNIHealthServer.'
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'verify_k8s_connection')
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def test_readiness_status(self, m_verify_k8s_conn, cap_tester):
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cap_tester.return_value = True
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m_verify_k8s_conn.return_value = True, 200
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resp = self.test_client.get('/ready')
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self.assertEqual(200, resp.status_code)
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@mock.patch('kuryr_kubernetes.cni.health._has_cap')
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@mock.patch('kuryr_kubernetes.cni.health.CNIHealthServer.'
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'verify_k8s_connection')
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def test_readiness_status_net_admin_error(self, m_verify_k8s_conn,
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cap_tester):
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cap_tester.return_value = False
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m_verify_k8s_conn.return_value = True, 200
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resp = self.test_client.get('/ready')
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self.assertEqual(500, resp.status_code)
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@mock.patch('kuryr_kubernetes.cni.health._has_cap')
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@mock.patch('kuryr_kubernetes.cni.health.CNIHealthServer.'
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'verify_k8s_connection')
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def test_readiness_status_k8s_error(self, m_verify_k8s_conn, cap_tester):
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cap_tester.return_value = True
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m_verify_k8s_conn.return_value = False
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resp = self.test_client.get('/ready')
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self.assertEqual(500, resp.status_code)
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@mock.patch('pyroute2.IPDB.release')
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def test_liveness_status(self, m_ipdb):
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self.srv._components_healthy.value = True
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resp = self.test_client.get('/alive')
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m_ipdb.assert_called()
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self.assertEqual(200, resp.status_code)
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def test_liveness_status_components_error(self):
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self.srv._components_healthy.value = False
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resp = self.test_client.get('/alive')
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self.assertEqual(500, resp.status_code)
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@mock.patch('pyroute2.IPDB.release')
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def test_liveness_status_ipdb_error(self, m_ipdb):
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m_ipdb.side_effect = Exception
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resp = self.test_client.get('/alive')
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self.assertEqual(500, resp.status_code)
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@mock.patch('kuryr_kubernetes.cni.health._get_memsw_usage')
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def test_liveness_status_mem_usage_error(self, get_memsw_usage):
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get_memsw_usage.return_value = 5368709120 / health.BYTES_AMOUNT
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cfg.CONF.set_override('max_memory_usage', 4096,
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group='cni_health_server')
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resp = self.test_client.get('/alive')
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self.assertEqual(500, resp.status_code)
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class TestCNIHealthUtils(base.TestCase):
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def test_has_cap(self):
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with tempfile.NamedTemporaryFile() as fake_status:
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fake_status.write(b'CapInh:\t0000000000000000\n'
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b'CapPrm:\t0000000000000000\n'
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b'CapEff:\t0000000000000000\n'
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b'CapBnd:\t0000003fffffffff\n')
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fake_status.flush()
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self.assertTrue(
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health._has_cap(health.CAP_NET_ADMIN,
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'CapBnd:\t',
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fake_status.name))
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def test__get_mem_usage(self):
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mem_usage = 500 # Arbitrary mem usage amount
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fake_cg_path = tempfile.mkdtemp(suffix='kuryr')
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usage_in_bytes_path = os.path.join(fake_cg_path, health.MEMSW_FILENAME)
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try:
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with open(usage_in_bytes_path, 'w') as cgroup_mem_usage:
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cgroup_mem_usage.write('{}\n'.format(
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mem_usage * health.BYTES_AMOUNT))
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self.assertEqual(health._get_memsw_usage(fake_cg_path), mem_usage)
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finally:
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os.unlink(usage_in_bytes_path)
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os.rmdir(fake_cg_path)
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@mock.patch('kuryr_kubernetes.cni.utils.running_under_container_runtime')
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def test__get_cni_cgroup_path_system(self, running_containerized):
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running_containerized.return_value = False
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fake_path = '/kuryr/rules'
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cfg.CONF.set_override('cg_path', fake_path,
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group='cni_health_server')
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self.assertEqual(health._get_cni_cgroup_path(), fake_path)
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@mock.patch('kuryr_kubernetes.cni.utils.running_under_container_runtime')
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def test__get_cni_cgroup_path_container(self, running_containerized):
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running_containerized.return_value = True
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self.assertEqual(health._get_cni_cgroup_path(),
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health.TOP_CGROUP_MEMORY_PATH)
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