Kubernetes integration with OpenStack networking
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# Copyright 2018 Red Hat, Inc.
#
# 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.
from unittest import mock
import munch
from openstack import exceptions as os_exc
from os_vif import objects
from oslo_config import cfg
from kuryr_kubernetes import constants as k_const
from kuryr_kubernetes import exceptions as k_exc
from kuryr_kubernetes.objects import vif
from kuryr_kubernetes.tests import base as test_base
from kuryr_kubernetes.tests.unit import kuryr_fixtures as k_fix
from kuryr_kubernetes import utils
CONF = cfg.CONF
class TestUtils(test_base.TestCase):
@mock.patch('socket.gethostname')
def test_get_node_name(self, m_gethostname):
m_gethostname.return_value = 'foo'
res = utils.get_node_name()
self.assertEqual('foo', res)
m_gethostname.assert_called_once_with()
@mock.patch('requests.get')
def test_get_leader_name(self, m_get):
m_get.return_value = mock.Mock(json=mock.Mock(
return_value={'name': 'foo'}))
res = utils.get_leader_name()
m_get.assert_called_once_with(
'http://localhost:%d' % CONF.kubernetes.controller_ha_elector_port)
self.assertEqual('foo', res)
@mock.patch('requests.get')
def test_get_leader_name_malformed(self, m_get):
m_get.return_value = mock.Mock(json=mock.Mock(
return_value={'name2': 'foo'}))
res = utils.get_leader_name()
m_get.assert_called_once_with(
'http://localhost:%d' % CONF.kubernetes.controller_ha_elector_port)
self.assertIsNone(res)
@mock.patch('requests.get')
def test_get_leader_name_exc(self, m_get):
m_get.side_effect = Exception
res = utils.get_leader_name()
m_get.assert_called_once_with(
'http://localhost:%d' % CONF.kubernetes.controller_ha_elector_port)
self.assertIsNone(res)
@mock.patch('kuryr_kubernetes.os_vif_util.neutron_to_osvif_network')
@mock.patch('kuryr_kubernetes.os_vif_util.neutron_to_osvif_subnet')
def test_get_subnet(self, m_osv_subnet, m_osv_network):
os_net = self.useFixture(k_fix.MockNetworkClient()).client
subnet = mock.MagicMock()
network = mock.MagicMock()
subnet_id = mock.sentinel.subnet_id
network_id = mock.sentinel.network_id
neutron_subnet = munch.Munch({'network_id': network_id})
neutron_network = mock.sentinel.neutron_network
os_net.get_subnet.return_value = neutron_subnet
os_net.get_network.return_value = neutron_network
m_osv_subnet.return_value = subnet
m_osv_network.return_value = network
ret = utils.get_subnet(subnet_id)
self.assertEqual(network, ret)
os_net.get_subnet.assert_called_once_with(subnet_id)
os_net.get_network.assert_called_once_with(network_id)
m_osv_subnet.assert_called_once_with(neutron_subnet)
m_osv_network.assert_called_once_with(neutron_network)
network.subnets.objects.append.assert_called_once_with(subnet)
def test_extract_pod_annotation(self):
vif_obj = objects.vif.VIFBase()
ps = vif.PodState(default_vif=vif_obj)
d = ps.obj_to_primitive()
result = utils.extract_pod_annotation(d)
self.assertEqual(vif.PodState.obj_name(), result.obj_name())
self.assertEqual(vif_obj, result.default_vif)
def test_extract_pod_annotation_convert(self):
vif_obj = objects.vif.VIFBase()
d = vif_obj.obj_to_primitive()
result = utils.extract_pod_annotation(d)
self.assertEqual(vif.PodState.obj_name(), result.obj_name())
self.assertEqual(vif_obj, result.default_vif)
def test__has_kuryrnet_crd(self):
kuryrnet_crd = {
"apiVersion": "openstack.org/v1",
"items": [
],
"kind": "KuryrNetList",
"metadata": {
"continue": "",
"resourceVersion": "33018",
"selfLink": "/apis/openstack.org/v1/kuryrnets"
}
}
kubernetes = self.useFixture(k_fix.MockK8sClient()).client
kubernetes.get.return_value = kuryrnet_crd
kuryrnets_url = k_const.K8S_API_CRD_KURYRNETS
resp = utils.has_kuryr_crd(kuryrnets_url)
self.assertEqual(resp, True)
def test__has_kuryrnetpolicy_crd(self):
kuryrnetpolicies_crd = {
"apiVersion": "openstack.org/v1",
"items": [
],
"kind": "KuryrNetPolicyList",
"metadata": {
"continue": "",
"resourceVersion": "34186",
"selfLink": "/apis/openstack.org/v1/kuryrnetpolicies"
}
}
kubernetes = self.useFixture(k_fix.MockK8sClient()).client
kubernetes.get.return_value = kuryrnetpolicies_crd
kuryrnetpolicies_url = k_const.K8S_API_CRD_KURYRNETPOLICIES
resp = utils.has_kuryr_crd(kuryrnetpolicies_url)
self.assertEqual(resp, True)
def test__has_kuryr_crd_error(self):
crds = [k_const.K8S_API_CRD_KURYRNETS,
k_const.K8S_API_CRD_KURYRNETPOLICIES,
k_const.K8S_API_CRD_KURYRLOADBALANCERS]
for crd_url in crds:
kubernetes = self.useFixture(k_fix.MockK8sClient()).client
kubernetes.get.side_effect = k_exc.K8sClientException
resp = utils.has_kuryr_crd(crd_url)
self.assertEqual(resp, False)
kubernetes.get.assert_called_once()
def test_get_endpoints_link(self):
service = {'metadata': {
'selfLink': "/api/v1/namespaces/default/services/test"}}
ret = utils.get_endpoints_link(service)
expected_link = "/api/v1/namespaces/default/endpoints/test"
self.assertEqual(expected_link, ret)
def test_get_service_ports(self):
service = {'spec': {'ports': [
{'port': 1, 'targetPort': 1},
{'port': 2, 'name': 'X', 'protocol': 'UDP', 'targetPort': 2}
]}}
expected_ret = [
{'port': 1, 'name': None, 'protocol': 'TCP', 'targetPort': '1'},
{'port': 2, 'name': 'X', 'protocol': 'UDP', 'targetPort': '2'}]
ret = utils.get_service_ports(service)
self.assertEqual(expected_ret, ret)
@mock.patch('kuryr_kubernetes.utils.get_service_ports')
def test_has_port_changes(self, m_get_service_ports):
service = {
'metadata': {
'selfLink': ""
},
'spec': {
'ports': [
{
'port': 1,
'name': 'X',
'protocol': 'TCP',
'targetPort': '1'
}
]
}
}
lb_crd_spec = {
'spec': {
'ports': [
{
'name': 'Y',
'protocol': 'TCP',
'port': 2,
'targetPort': 2
}
]
}
}
ret = utils.has_port_changes(service, lb_crd_spec)
self.assertTrue(ret)
@mock.patch('kuryr_kubernetes.utils.get_service_ports')
def test_has_port_changes_more_ports(self, m_get_service_ports):
service = {
'metadata': {
'selfLink': ""
},
'spec': {
'ports': [
{
'port': 1,
'name': 'X',
'protocol': 'TCP',
'targetPort': '1'
}
]
}
}
lb_crd_spec = {
'spec': {
'ports': [
{
'name': 'X',
'protocol': 'TCP',
'port': 1,
'targetPort': 1
},
{
'name': 'Y',
'protocol': 'TCP',
'port': 2,
'targetPort': 2
}
]
}
}
ret = utils.has_port_changes(service, lb_crd_spec)
self.assertTrue(ret)
@mock.patch('kuryr_kubernetes.utils.get_service_ports')
def test_has_port_changes_no_changes(self, m_get_service_ports):
service = {
'metadata': {
'selfLink': ""
},
'spec': {
'ports': [
{
'port': 1,
'name': 'X',
'protocol': 'TCP',
'targetPort': '1'
},
{
'name': 'Y',
'protocol': 'TCP',
'port': 2,
'targetPort': '2'
}
]
}
}
lb_crd_spec = {
'spec': {
'ports': [
{
'name': 'X',
'protocol': 'TCP',
'port': 1,
'targetPort': '1'
},
{
'name': 'Y',
'protocol': 'TCP',
'port': 2,
'targetPort': '2'
}
]
}
}
ret = utils.has_port_changes(service, lb_crd_spec)
self.assertFalse(ret)
def test_get_nodes_ips(self):
os_net = self.useFixture(k_fix.MockNetworkClient()).client
ip1 = munch.Munch({'fixed_ips': [{'ip_address': '10.0.0.1'}],
'trunk_details': True})
ip2 = munch.Munch({'fixed_ips': [{'ip_address': '10.0.0.2'}],
'trunk_details': True})
ip3 = munch.Munch({'fixed_ips': [{'ip_address': '10.0.0.3'}],
'trunk_details': None})
ports = (p for p in [ip1, ip2, ip3])
os_net.ports.return_value = ports
trunk_ips = utils.get_nodes_ips()
os_net.ports.assert_called_once_with(status='ACTIVE')
self.assertEqual(trunk_ips, [ip1.fixed_ips[0]['ip_address'],
ip2.fixed_ips[0]['ip_address']])
def test_get_nodes_ips_tagged(self):
CONF.set_override('resource_tags', ['foo'], group='neutron_defaults')
self.addCleanup(CONF.clear_override, 'resource_tags',
group='neutron_defaults')
os_net = self.useFixture(k_fix.MockNetworkClient()).client
ip1 = munch.Munch({'fixed_ips': [{'ip_address': '10.0.0.1'}],
'trunk_details': True})
ip2 = munch.Munch({'fixed_ips': [{'ip_address': '10.0.0.2'}],
'trunk_details': False})
ports = (p for p in [ip1, ip2])
os_net.ports.return_value = ports
trunk_ips = utils.get_nodes_ips()
os_net.ports.assert_called_once_with(status='ACTIVE', tags=['foo'])
self.assertEqual(trunk_ips, [ip1.fixed_ips[0]['ip_address']])
def test_get_subnet_cidr(self):
os_net = self.useFixture(k_fix.MockNetworkClient()).client
subnet_id = mock.sentinel.subnet_id
subnet = munch.Munch(cidr='10.0.0.0/24')
os_net.get_subnet.return_value = subnet
result = utils.get_subnet_cidr(subnet_id)
os_net.get_subnet.assert_called_once_with(subnet_id)
self.assertEqual(result, '10.0.0.0/24')
def test_get_subnet_cidr_no_such_subnet(self):
os_net = self.useFixture(k_fix.MockNetworkClient()).client
subnet_id = mock.sentinel.subnet_id
os_net.get_subnet.side_effect = os_exc.ResourceNotFound
self.assertRaises(os_exc.ResourceNotFound, utils.get_subnet_cidr,
subnet_id)
os_net.get_subnet.assert_called_once_with(subnet_id)
def test_get_current_endpoints_target_with_target_ref(self):
ep = {'addresses': ['10.0.2.107'], 'conditions': {'ready': True},
'targetRef': {'kind': 'Pod', 'name': 'test-868d9cbd68-xq2fl',
'namespace': 'test2'}}
port = {'port': 8080, 'protocol': 'TCP'}
spec_ports = {None: '31d59e41-05db-4a39-8aca-6a9a572c83cd'}
ep_name = 'test'
target = utils.get_current_endpoints_target(
ep, port, spec_ports, ep_name)
self.assertEqual(
target, ('10.0.2.107', 'test-868d9cbd68-xq2fl', 8080,
'31d59e41-05db-4a39-8aca-6a9a572c83cd'))
def test_get_current_endpoints_target_without_target_ref(self):
ep = {'addresses': ['10.0.1.208'], 'conditions': {'ready': True}}
port = {'port': 8080, 'protocol': 'TCP'}
spec_ports = {None: '4472fab1-f01c-46a7-b197-5cba4f2d7135'}
ep_name = 'test'
target = utils.get_current_endpoints_target(
ep, port, spec_ports, ep_name)
self.assertEqual(
target, ('10.0.1.208', 'test', 8080,
'4472fab1-f01c-46a7-b197-5cba4f2d7135'))
def test_get_res_link_core_res(self):
res = {'apiVersion': 'v1',
'kind': 'Pod',
'metadata': {'name': 'pod-1',
'namespace': 'default'}}
self.assertEqual(utils.get_res_link(res),
'/api/v1/namespaces/default/pods/pod-1')
def test_get_res_link_no_existent(self):
res = {'apiVersion': 'customapi/v1',
'kind': 'ItsATrap!',
'metadata': {'name': 'pod-1',
'namespace': 'default'}}
self.assertRaises(KeyError, utils.get_res_link, res)
def test_get_res_link_beta_res(self):
res = {'apiVersion': 'networking.k8s.io/v2beta2',
'kind': 'NetworkPolicy',
'metadata': {'name': 'np-1',
'namespace': 'default'}}
self.assertEqual(utils.get_res_link(res), '/apis/networking.k8s.io/'
'v2beta2/namespaces/default/networkpolicies/np-1')
def test_get_res_link_no_namespace(self):
res = {'apiVersion': 'v1',
'kind': 'Namespace',
'metadata': {'name': 'ns-1'}}
self.assertEqual(utils.get_res_link(res), '/api/v1/namespaces/ns-1')
def test_get_res_link_custom_api(self):
res = {'apiVersion': 'openstack.org/v1',
'kind': 'KuryrPort',
'metadata': {'name': 'kp-1',
'namespace': 'default'}}
self.assertEqual(utils.get_res_link(res),
'/apis/openstack.org/v1/namespaces/default/'
'kuryrports/kp-1')
def test_get_res_link_no_apiversion(self):
res = {'kind': 'KuryrPort',
'metadata': {'name': 'kp-1',
'namespace': 'default'}}
self.assertRaises(KeyError, utils.get_res_link, res)
def test_get_api_ver_core_api(self):
path = '/api/v1/namespaces/default/pods/pod-123'
self.assertEqual(utils.get_api_ver(path), 'v1')
def test_get_api_ver_custom_resource(self):
path = '/apis/openstack.org/v1/namespaces/default/kuryrport/pod-123'
self.assertEqual(utils.get_api_ver(path), 'openstack.org/v1')
def test_get_api_ver_random_path(self):
path = '/?search=foo'
self.assertRaises(ValueError, utils.get_api_ver, path)
def test_get_res_selflink_still_available(self):
res = {'metadata': {'selfLink': '/foo'}}
self.assertEqual(utils.get_res_link(res), '/foo')