523 lines
24 KiB
Python
523 lines
24 KiB
Python
# Copyright 2018 Red Hat, 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 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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import mock
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from kuryr_kubernetes.controller.drivers import network_policy
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from kuryr_kubernetes import exceptions
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from kuryr_kubernetes.tests import base as test_base
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from kuryr_kubernetes.tests.unit import kuryr_fixtures as k_fix
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from kuryr_kubernetes import utils
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from neutronclient.common import exceptions as n_exc
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def get_pod_obj():
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return {
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'status': {
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'qosClass': 'BestEffort',
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'hostIP': '192.168.1.2',
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},
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'kind': 'Pod',
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'spec': {
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'schedulerName': 'default-scheduler',
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'containers': [{
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'name': 'busybox',
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'image': 'busybox',
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'resources': {}
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}],
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'nodeName': 'kuryr-devstack'
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},
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'metadata': {
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'name': 'busybox-sleep1',
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'namespace': 'default',
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'resourceVersion': '53808',
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'selfLink': '/api/v1/namespaces/default/pods/busybox-sleep1',
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'uid': '452176db-4a85-11e7-80bd-fa163e29dbbb',
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'annotations': {
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'openstack.org/kuryr-vif': {}
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}
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}}
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def get_namespace_obj():
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return {
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"kind": "Namespace",
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"metadata": {
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"annotations": {
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"openstack.org/kuryr-namespace-label":
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"{\"projetc\": \"myproject\"}",
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"openstack.org/kuryr-net-crd": "ns-myproject"
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},
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"labels": {
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"project": "myproject"
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},
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"name": "myproject"}}
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class TestNetworkPolicyDriver(test_base.TestCase):
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def setUp(self):
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super(TestNetworkPolicyDriver, self).setUp()
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self._project_id = mock.sentinel.project_id
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self._policy_name = 'np-test'
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self._policy_uid = mock.sentinel.policy_uid
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self._policy_link = mock.sentinel.policy_link
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self._sg_id = mock.sentinel.sg_id
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self._i_rules = [{'security_group_rule': {'id': ''}}]
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self._e_rules = [{'security_group_rule': {'id': ''}}]
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self._policy = {
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'apiVersion': u'networking.k8s.io/v1',
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'kind': u'NetworkPolicy',
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'metadata': {
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'name': self._policy_name,
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'resourceVersion': u'2259309',
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'generation': 1,
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'creationTimestamp': u'2018-09-18T14:09:51Z',
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'namespace': u'default',
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'annotations': {},
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'selfLink': self._policy_link,
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'uid': self._policy_uid
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},
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'spec': {
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'egress': [{'ports':
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[{'port': 5978, 'protocol': 'TCP'}],
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'to':
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[{'namespaceSelector': {
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'matchLabels': {
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'project': 'myproject'}}}]}],
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'ingress': [{'ports':
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[{'port': 6379, 'protocol': 'TCP'}],
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'from':
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[{'namespaceSelector': {
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'matchLabels': {
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'project': 'myproject'}}}]}],
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'policyTypes': ['Ingress', 'Egress']
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}
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}
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self._crd = {
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'metadata': {'name': mock.sentinel.name,
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'namespace': u'default',
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'selfLink': mock.sentinel.selfLink},
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'spec': {
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'egressSgRules': [
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{'security_group_rule':
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{'description': 'Kuryr-Kubernetes NetPolicy SG rule',
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'direction': 'egress',
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'ethertype': 'IPv4',
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'port_range_max': 5978,
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'port_range_min': 5978,
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'protocol': 'tcp',
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'security_group_id': self._sg_id,
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'id': mock.sentinel.id
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}}],
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'ingressSgRules': [
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{'security_group_rule':
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{'description': 'Kuryr-Kubernetes NetPolicy SG rule',
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'direction': 'ingress',
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'ethertype': 'IPv4',
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'port_range_max': 6379,
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'port_range_min': 6379,
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'protocol': 'tcp',
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'security_group_id': self._sg_id,
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'id': mock.sentinel.id
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}}],
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'networkpolicy_spec': self._policy['spec'],
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'securityGroupId': self._sg_id,
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'securityGroupName': mock.sentinel.sg_name}}
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self.neutron = self.useFixture(k_fix.MockNeutronClient()).client
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self.kubernetes = self.useFixture(k_fix.MockK8sClient()).client
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self._driver = network_policy.NetworkPolicyDriver()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd', return_value=False)
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'create_security_group_rules_from_network_policy')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'update_security_group_rules_from_network_policy')
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def test_ensure_network_policy(self, m_update, m_create, m_get_crd):
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self._driver.ensure_network_policy(self._policy, self._project_id)
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m_get_crd.assert_called_once_with(self._policy)
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m_create.assert_called_once_with(self._policy, self._project_id)
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m_update.assert_not_called()
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@mock.patch.object(network_policy.NetworkPolicyDriver, 'affected_pods')
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@mock.patch.object(network_policy.NetworkPolicyDriver, 'namespaced_pods')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd', return_value=True)
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'create_security_group_rules_from_network_policy')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'update_security_group_rules_from_network_policy')
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def test_ensure_network_policy_with_existing_crd(
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self, m_update, m_create, m_get_crd, m_namespaced, m_affected):
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previous_selector = mock.sentinel.previous_selector
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m_update.return_value = previous_selector
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self._driver.ensure_network_policy(self._policy, self._project_id)
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m_get_crd.assert_called_once_with(self._policy)
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m_create.assert_not_called()
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m_update.assert_called_once_with(self._policy)
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m_affected.assert_called_once_with(self._policy, previous_selector)
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m_namespaced.assert_not_called()
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@mock.patch.object(network_policy.NetworkPolicyDriver, 'affected_pods')
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@mock.patch.object(network_policy.NetworkPolicyDriver, 'namespaced_pods')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd', return_value=True)
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'create_security_group_rules_from_network_policy')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'update_security_group_rules_from_network_policy')
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def test_ensure_network_policy_with_existing_crd_no_selector(
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self, m_update, m_create, m_get_crd, m_namespaced, m_affected):
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m_update.return_value = None
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self._driver.ensure_network_policy(self._policy, self._project_id)
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m_get_crd.assert_called_once_with(self._policy)
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m_create.assert_not_called()
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m_update.assert_called_once_with(self._policy)
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m_affected.assert_not_called()
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m_namespaced.assert_called_once_with(self._policy)
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@mock.patch.object(network_policy.NetworkPolicyDriver, 'affected_pods')
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@mock.patch.object(network_policy.NetworkPolicyDriver, 'namespaced_pods')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'create_security_group_rules_from_network_policy')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'update_security_group_rules_from_network_policy')
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def test_ensure_network_policy_with_existing_crd_empty_selector(
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self, m_update, m_create, m_get_crd, m_namespaced, m_affected):
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previous_selector = {}
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pod_selector = {'matchLabels': {'run': 'demo'}}
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updated_policy = self._policy.copy()
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updated_policy['spec']['podSelector'] = pod_selector
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crd_with_empty_selector = self._crd.copy()
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crd_with_empty_selector['spec']['podSelector'] = previous_selector
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m_get_crd.return_value = crd_with_empty_selector
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m_update.return_value = previous_selector
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self._driver.ensure_network_policy(updated_policy, self._project_id)
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m_get_crd.assert_called_once_with(updated_policy)
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m_create.assert_not_called()
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m_update.assert_called_once_with(updated_policy)
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m_affected.assert_called_with(self._policy, previous_selector)
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m_namespaced.assert_not_called()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_add_default_np_rules')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_add_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'parse_network_policy_rules')
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@mock.patch.object(utils, 'get_subnet_cidr')
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def test_create_security_group_rules_from_network_policy(self, m_utils,
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m_parse,
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m_add_crd,
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m_get_crd,
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m_add_default):
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self._driver.neutron.create_security_group.return_value = {
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'security_group': {'id': mock.sentinel.id,
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'security_group_rules': []}}
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m_utils.get_subnet_cidr.return_value = {
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'subnet': {'cidr': mock.sentinel.cidr}}
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m_parse.return_value = (self._i_rules, self._e_rules)
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self._driver.neutron.create_security_group_rule.return_value = {
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'security_group_rule': {'id': mock.sentinel.id}}
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self._driver.create_security_group_rules_from_network_policy(
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self._policy, self._project_id)
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m_get_crd.assert_called_once()
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m_add_crd.assert_called_once()
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m_add_default.assert_called_once()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_add_default_np_rules')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_add_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'parse_network_policy_rules')
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@mock.patch.object(utils, 'get_subnet_cidr')
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def test_create_security_group_rules_with_k8s_exc(self, m_utils, m_parse,
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m_add_crd, m_get_crd,
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m_add_default):
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self._driver.neutron.create_security_group.return_value = {
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'security_group': {'id': mock.sentinel.id,
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'security_group_rules': []}}
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m_utils.get_subnet_cidr.return_value = {
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'subnet': {'cidr': mock.sentinel.cidr}}
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m_parse.return_value = (self._i_rules, self._e_rules)
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m_get_crd.side_effect = exceptions.K8sClientException
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self._driver.neutron.create_security_group_rule.return_value = {
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'security_group_rule': {'id': mock.sentinel.id}}
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self.assertRaises(
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exceptions.K8sClientException,
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self._driver.create_security_group_rules_from_network_policy,
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self._policy, self._project_id)
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m_add_crd.assert_called_once()
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m_add_default.assert_called_once()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_add_default_np_rules')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_add_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'parse_network_policy_rules')
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@mock.patch.object(utils, 'get_subnet_cidr')
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def test_create_security_group_rules_error_add_crd(self, m_utils, m_parse,
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m_add_crd, m_get_crd,
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m_add_default):
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self._driver.neutron.create_security_group.return_value = {
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'security_group': {'id': mock.sentinel.id,
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'security_group_rules': []}}
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m_utils.get_subnet_cidr.return_value = {
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'subnet': {'cidr': mock.sentinel.cidr}}
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m_parse.return_value = (self._i_rules, self._e_rules)
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m_add_crd.side_effect = exceptions.K8sClientException
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self._driver.neutron.create_security_group_rule.return_value = {
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'security_group_rule': {'id': mock.sentinel.id}}
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self.assertRaises(
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exceptions.K8sClientException,
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self._driver.create_security_group_rules_from_network_policy,
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self._policy, self._project_id)
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m_get_crd.assert_not_called()
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m_add_default.assert_called_once()
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def test_create_security_group_rules_with_n_exc(self):
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self._driver.neutron.create_security_group.side_effect = (
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n_exc.NeutronClientException())
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self.assertRaises(
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n_exc.NeutronClientException,
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self._driver.create_security_group_rules_from_network_policy,
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self._policy, self._project_id)
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@mock.patch('kuryr_kubernetes.controller.drivers.utils.'
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'create_security_group_rule')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'parse_network_policy_rules')
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def test_update_security_group_rules(self, m_parse, m_get_crd,
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m_create_sgr):
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policy = self._policy.copy()
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policy['spec']['podSelector'] = {'matchLabels': {'test': 'test'}}
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m_get_crd.return_value = self._crd
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m_parse.return_value = (self._i_rules, self._e_rules)
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self._driver.update_security_group_rules_from_network_policy(
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policy)
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m_parse.assert_called_with(policy, self._sg_id)
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@mock.patch('kuryr_kubernetes.controller.drivers.utils.'
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'create_security_group_rule')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'get_kuryrnetpolicy_crd')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'parse_network_policy_rules')
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def test_update_security_group_rules_with_k8s_exc(self, m_parse, m_get_crd,
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m_create_sgr):
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self._driver.kubernetes.patch_crd.side_effect = (
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exceptions.K8sClientException())
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m_get_crd.return_value = self._crd
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m_parse.return_value = (self._i_rules, self._e_rules)
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self.assertRaises(
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exceptions.K8sClientException,
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self._driver.update_security_group_rules_from_network_policy,
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self._policy)
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m_parse.assert_called_with(self._policy, self._sg_id)
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def test_get_namespaces(self):
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namespace_selector = {'namespaceSelector': {
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'matchLabels': {'project': 'myproject'}}}
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self.kubernetes.get.side_effect = [{'items': [get_namespace_obj()]}]
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resp = self._driver._get_namespaces(namespace_selector)
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self.assertEqual([get_namespace_obj()], resp)
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self.kubernetes.get.assert_called()
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def test_get_namespaces_no_matches(self):
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namespace_selector = {'matchLabels': {'test': 'test'}}
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self.kubernetes.get.return_value = {'items': []}
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resp = self._driver._get_namespaces(namespace_selector)
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self.assertEqual([], resp)
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self.kubernetes.get.assert_called_once()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_get_resource_details')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_get_namespaces')
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@mock.patch('kuryr_kubernetes.controller.drivers.utils.'
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'create_security_group_rule_body')
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def test_parse_network_policy_rules_with_rules(
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self, m_create, m_get_namespaces,
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m_get_resource_details):
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subnet_cidr = '10.10.0.0/24'
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namespace = 'myproject'
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m_get_namespaces.return_value = [get_namespace_obj()]
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m_get_resource_details.return_value = subnet_cidr, namespace
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self._driver.parse_network_policy_rules(self._policy, self._sg_id)
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m_get_namespaces.assert_called()
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m_get_resource_details.assert_called()
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m_create.assert_called()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_get_namespaces')
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@mock.patch('kuryr_kubernetes.controller.drivers.utils.'
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'create_security_group_rule_body')
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def test_parse_network_policy_rules_with_no_rules(self, m_create,
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m_get_ns):
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policy = self._policy.copy()
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policy['spec']['ingress'] = [{}]
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policy['spec']['egress'] = [{}]
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self._driver.parse_network_policy_rules(policy, self._sg_id)
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m_get_ns.assert_not_called()
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calls = [mock.call(self._sg_id, 'ingress'),
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mock.call(self._sg_id, 'egress')]
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m_create.assert_has_calls(calls)
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_create_all_pods_sg_rules')
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def test_parse_network_policy_rules_with_no_pod_selector(
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self, m_create_all_pods_sg_rules):
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policy = self._policy.copy()
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policy['spec']['ingress'] = [{'ports':
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[{'port': 6379, 'protocol': 'TCP'}]}]
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policy['spec']['egress'] = [{'ports':
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[{'port': 6379, 'protocol': 'TCP'}]}]
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self._driver.parse_network_policy_rules(policy, self._sg_id)
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m_create_all_pods_sg_rules.assert_called()
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_create_sg_rule_on_number_port')
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@mock.patch.object(network_policy.NetworkPolicyDriver,
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'_get_namespaces')
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def test_parse_network_policy_rules_with_ipblock(self,
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m_get_namespaces,
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m_create_sg_rule):
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policy = self._policy.copy()
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policy['spec']['ingress'] = [{'from':
|
|
[{'ipBlock':
|
|
{'cidr': '172.17.0.0/16',
|
|
'except': ['172.17.1.0/24']}}],
|
|
'ports': [{'port': 6379,
|
|
'protocol': 'TCP'}]}]
|
|
policy['spec']['egress'] = [{'ports': [{'port': 5978, 'protocol':
|
|
'TCP'}],
|
|
'to': [{'ipBlock':
|
|
{'cidr': '10.0.0.0/24'}}]}]
|
|
self._driver.parse_network_policy_rules(policy, self._sg_id)
|
|
m_create_sg_rule.assert_called()
|
|
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver,
|
|
'_get_resource_details')
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver,
|
|
'_get_namespaces')
|
|
@mock.patch('kuryr_kubernetes.controller.drivers.utils.'
|
|
'create_security_group_rule_body')
|
|
def test_parse_network_policy_rules_with_no_ports(
|
|
self, m_create, m_get_namespaces, m_get_resource_details):
|
|
subnet_cidr = '10.10.0.0/24'
|
|
namespace = 'myproject'
|
|
m_get_namespaces.return_value = [get_namespace_obj()]
|
|
m_get_resource_details.return_value = subnet_cidr, namespace
|
|
policy = self._policy.copy()
|
|
selectors = {'namespaceSelector': {
|
|
'matchLabels': {
|
|
'project': 'myproject'}}}
|
|
policy['spec']['egress'] = [
|
|
{'to':
|
|
[selectors]}]
|
|
policy['spec']['ingress'] = [
|
|
{'from':
|
|
[selectors]}]
|
|
selectors = {'namespace_selector': selectors['namespaceSelector']}
|
|
self._driver.parse_network_policy_rules(policy, self._sg_id)
|
|
m_get_namespaces.assert_called()
|
|
m_get_resource_details.assert_called()
|
|
calls = [mock.call(self._sg_id, 'ingress', port_range_min=1,
|
|
port_range_max=65535, cidr=subnet_cidr,
|
|
namespace=namespace),
|
|
mock.call(self._sg_id, 'egress', port_range_min=1,
|
|
port_range_max=65535, cidr=subnet_cidr,
|
|
namespace=namespace)]
|
|
m_create.assert_has_calls(calls)
|
|
|
|
def test_knps_on_namespace(self):
|
|
self.kubernetes.get.return_value = {'items': ['not-empty']}
|
|
namespace = 'test1'
|
|
|
|
resp = self._driver.knps_on_namespace(namespace)
|
|
self.assertTrue(resp)
|
|
|
|
def test_knps_on_namespace_empty(self):
|
|
self.kubernetes.get.return_value = {'items': []}
|
|
namespace = 'test1'
|
|
|
|
resp = self._driver.knps_on_namespace(namespace)
|
|
self.assertFalse(resp)
|
|
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver, 'namespaced_pods')
|
|
def test_affected_pods(self, m_namespaced):
|
|
self._driver.affected_pods(self._policy)
|
|
m_namespaced.assert_called_once_with(self._policy)
|
|
self.kubernetes.assert_not_called()
|
|
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver, 'namespaced_pods')
|
|
def test_affected_pods_with_podselector(self, m_namespaced):
|
|
self.kubernetes.get.return_value = {'items': []}
|
|
selector = {'matchLabels': {'test': 'test'}}
|
|
self._driver.affected_pods(self._policy, selector)
|
|
m_namespaced.assert_not_called()
|
|
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver, 'namespaced_pods')
|
|
def test_affected_pods_with_empty_podselector(self, m_namespaced):
|
|
m_namespaced.return_value = []
|
|
pod_selector = {}
|
|
self._driver.affected_pods(self._policy, pod_selector)
|
|
m_namespaced.assert_called_with(self._policy)
|
|
|
|
def test_namespaced_pods(self):
|
|
self.kubernetes.get.return_value = {'items': []}
|
|
|
|
resp = self._driver.namespaced_pods(self._policy)
|
|
self.assertEqual([], resp)
|
|
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver,
|
|
'_del_kuryrnetpolicy_crd', return_value=False)
|
|
def test_release_network_policy(self, m_del_crd):
|
|
self._driver.release_network_policy(self._crd)
|
|
self.neutron.delete_security_group.assert_called_once_with(
|
|
self._crd['spec']['securityGroupId'])
|
|
m_del_crd.assert_called_once_with(self._crd['metadata']['name'],
|
|
self._crd['metadata']['namespace'])
|
|
|
|
@mock.patch.object(network_policy.NetworkPolicyDriver,
|
|
'_del_kuryrnetpolicy_crd', return_value=False)
|
|
def test_release_network_policy_removed_crd(self, m_del_crd):
|
|
self._driver.release_network_policy(None)
|
|
m_del_crd.assert_not_called()
|