senlin/senlin/tests/unit/policies/test_health_policy.py

510 lines
18 KiB
Python

# 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 collections import namedtuple
import copy
from unittest import mock
from oslo_config import cfg
from senlin.common import consts
from senlin.common import exception as exc
from senlin.common import scaleutils as su
from senlin.engine import health_manager
from senlin.policies import base as pb
from senlin.policies import health_policy
from senlin.tests.unit.common import base
from senlin.tests.unit.common import utils
class TestHealthPolicy(base.SenlinTestCase):
def setUp(self):
super(TestHealthPolicy, self).setUp()
self.context = utils.dummy_context()
self.spec = {
'type': 'senlin.policy.health',
'version': '1.1',
'properties': {
'detection': {
"detection_modes": [
{
'type': 'NODE_STATUS_POLLING'
},
],
'interval': 60
},
'recovery': {
'fencing': ['COMPUTE'],
'actions': [
{'name': 'REBUILD'}
]
}
}
}
fake_profile = mock.Mock(type_name='os.nova.server',
type='os.nova.server-1.0',)
fake_node = mock.Mock(status='ACTIVE')
fake_cluster = mock.Mock(id='CLUSTER_ID', nodes=[fake_node],
rt={'profile': fake_profile})
self.cluster = fake_cluster
self.patch('senlin.rpc.client.get_engine_client')
self.hp = health_policy.HealthPolicy('test-policy', self.spec)
def test_policy_init(self):
DetectionMode = namedtuple(
'DetectionMode',
[self.hp.DETECTION_TYPE] + list(self.hp._DETECTION_OPTIONS))
detection_modes = [
DetectionMode(
type='NODE_STATUS_POLLING',
poll_url='',
poll_url_ssl_verify=True,
poll_url_conn_error_as_unhealthy=True,
poll_url_healthy_response='',
poll_url_retry_limit='',
poll_url_retry_interval=''
)
]
spec = {
'type': 'senlin.policy.health',
'version': '1.1',
'properties': {
'detection': {
"detection_modes": [
{
'type': 'NODE_STATUS_POLLING'
},
],
'interval': 60
},
'recovery': {
'fencing': ['COMPUTE'],
'actions': [
{'name': 'REBUILD'}
]
}
}
}
hp = health_policy.HealthPolicy('test-policy', spec)
self.assertIsNone(hp.id)
self.assertEqual('test-policy', hp.name)
self.assertEqual('senlin.policy.health-1.1', hp.type)
self.assertEqual(detection_modes, hp.detection_modes)
self.assertEqual(60, hp.interval)
self.assertEqual([{'name': 'REBUILD', 'params': None}],
hp.recover_actions)
def test_policy_init_ops(self):
spec = {
'type': 'senlin.policy.health',
'version': '1.1',
'properties': {
'detection': {
"detection_modes": [
{
'type': 'NODE_STATUS_POLLING'
},
{
'type': 'NODE_STATUS_POLL_URL'
},
],
'interval': 60
},
'recovery': {
'fencing': ['COMPUTE'],
'actions': [
{'name': 'REBUILD'}
]
}
}
}
operations = [None, 'ALL_FAILED', 'ANY_FAILED']
for op in operations:
# set operation in spec
if op:
spec['properties']['detection']['recovery_conditional'] = op
# test __init__
hp = health_policy.HealthPolicy('test-policy', spec)
# check result
self.assertIsNone(hp.id)
self.assertEqual('test-policy', hp.name)
self.assertEqual('senlin.policy.health-1.1', hp.type)
self.assertEqual(60, hp.interval)
self.assertEqual([{'name': 'REBUILD', 'params': None}],
hp.recover_actions)
def test_validate(self):
spec = copy.deepcopy(self.spec)
spec["properties"]["recovery"]["actions"] = [
{"name": "REBUILD"}, {"name": "RECREATE"}
]
self.hp = health_policy.HealthPolicy('test-policy', spec)
ex = self.assertRaises(exc.ESchema,
self.hp.validate,
self.context)
self.assertEqual("Only one 'actions' is supported for now.",
str(ex))
def test_validate_valid_interval(self):
spec = copy.deepcopy(self.spec)
spec["properties"]["detection"]["interval"] = 20
self.hp = health_policy.HealthPolicy('test-policy', spec)
cfg.CONF.set_override('health_check_interval_min', 20)
self.hp.validate(self.context)
def test_validate_invalid_interval(self):
spec = copy.deepcopy(self.spec)
spec["properties"]["detection"]["interval"] = 10
self.hp = health_policy.HealthPolicy('test-policy', spec)
cfg.CONF.set_override('health_check_interval_min', 20)
ex = self.assertRaises(exc.InvalidSpec,
self.hp.validate,
self.context)
expected_error = ("Specified interval of %(interval)d seconds has to "
"be larger than health_check_interval_min of "
"%(min_interval)d seconds set in configuration."
) % {"interval": 10, "min_interval": 20}
self.assertEqual(expected_error, str(ex))
@mock.patch.object(health_manager, 'register')
def test_attach(self, mock_hm_reg):
policy_data = {
'HealthPolicy': {
'data': {
'interval': self.hp.interval,
'detection_modes': [
{
'type': 'NODE_STATUS_POLLING',
'poll_url': '',
'poll_url_ssl_verify': True,
'poll_url_conn_error_as_unhealthy': True,
'poll_url_healthy_response': '',
'poll_url_retry_limit': '',
'poll_url_retry_interval': ''
}
],
'node_update_timeout': 300,
'node_delete_timeout': 20,
'node_force_recreate': False,
'recovery_conditional': 'ANY_FAILED'
},
'version': '1.1'
}
}
res, data = self.hp.attach(self.cluster)
self.assertTrue(res)
self.assertEqual(policy_data, data)
kwargs = {
'interval': self.hp.interval,
'node_update_timeout': 300,
'params': {
'recover_action': self.hp.recover_actions,
'node_delete_timeout': 20,
'node_force_recreate': False,
'recovery_conditional': 'ANY_FAILED',
'detection_modes': [
{
'type': 'NODE_STATUS_POLLING',
'poll_url': '',
'poll_url_ssl_verify': True,
'poll_url_conn_error_as_unhealthy': True,
'poll_url_healthy_response': '',
'poll_url_retry_limit': '',
'poll_url_retry_interval': ''
}
],
},
'enabled': True
}
mock_hm_reg.assert_called_once_with('CLUSTER_ID',
engine_id=None,
**kwargs)
@mock.patch.object(health_manager, 'register')
def test_attach_failed_action_matching_rebuild(self, mock_hm_reg):
fake_profile = mock.Mock(type_name='os.heat.stack-1.0',
type='os.heat.stack')
fake_cluster = mock.Mock(id='CLUSTER_ID', rt={'profile': fake_profile})
res, data = self.hp.attach(fake_cluster)
self.assertFalse(res)
self.assertEqual("Recovery action REBUILD is only applicable to "
"os.nova.server clusters.", data)
@mock.patch.object(health_manager, 'register')
def test_attach_failed_action_matching_reboot(self, mock_hm_reg):
spec = copy.deepcopy(self.spec)
spec['properties']['recovery']['actions'] = [{'name': 'REBOOT'}]
hp = health_policy.HealthPolicy('test-policy-1', spec)
fake_profile = mock.Mock(type_name='os.heat.stack-1.0',
type='os.heat.stack')
fake_cluster = mock.Mock(id='CLUSTER_ID', rt={'profile': fake_profile})
res, data = hp.attach(fake_cluster)
self.assertFalse(res)
self.assertEqual("Recovery action REBOOT is only applicable to "
"os.nova.server clusters.", data)
@mock.patch.object(health_manager, 'unregister')
def test_detach(self, mock_hm_reg):
res, data = self.hp.detach(self.cluster)
self.assertTrue(res)
self.assertEqual('', data)
mock_hm_reg.assert_called_once_with('CLUSTER_ID')
def test_pre_op_default(self):
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_SCALE_OUT)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
data = {
'health': {
'recover_action': [{'name': 'REBUILD', 'params': None}],
'fencing': ['COMPUTE'],
}
}
self.assertEqual(data, action.data)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_scale_in(self, mock_disable):
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_SCALE_IN)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_update(self, mock_disable):
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_UPDATE)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_cluster_recover(self, mock_disable):
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_RECOVER)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_cluster_replace_nodes(self, mock_disable):
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_REPLACE_NODES)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_cluster_del_nodes(self, mock_disable):
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_DEL_NODES)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_node_delete(self, mock_disable):
action = mock.Mock(context='action_context', data={},
action=consts.NODE_DELETE)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'disable')
def test_pre_op_resize_with_data(self, mock_disable):
action = mock.Mock(context='action_context', data={'deletion': 'foo'},
action=consts.CLUSTER_RESIZE)
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
@mock.patch.object(su, 'parse_resize_params')
@mock.patch.object(health_manager, 'disable')
def test_pre_op_resize_without_data(self, mock_disable, mock_parse):
def fake_check(action, cluster, current):
action.data['deletion'] = {'foo': 'bar'}
return pb.CHECK_OK, 'good'
x_cluster = mock.Mock()
x_cluster.nodes = [mock.Mock(), mock.Mock(), mock.Mock()]
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_RESIZE)
action.entity = x_cluster
mock_parse.side_effect = fake_check
res = self.hp.pre_op(self.cluster.id, action)
self.assertTrue(res)
mock_disable.assert_called_once_with(self.cluster.id)
mock_parse.assert_called_once_with(action, x_cluster, 3)
@mock.patch.object(su, 'parse_resize_params')
@mock.patch.object(health_manager, 'disable')
def test_pre_op_resize_parse_error(self, mock_disable, mock_parse):
x_cluster = mock.Mock()
x_cluster.nodes = [mock.Mock(), mock.Mock()]
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_RESIZE)
action.entity = x_cluster
mock_parse.return_value = pb.CHECK_ERROR, 'no good'
res = self.hp.pre_op(self.cluster.id, action)
self.assertFalse(res)
self.assertEqual(pb.CHECK_ERROR, action.data['status'])
self.assertEqual('no good', action.data['reason'])
mock_parse.assert_called_once_with(action, x_cluster, 2)
self.assertEqual(0, mock_disable.call_count)
def test_post_op_default(self):
action = mock.Mock(action='FAKE_ACTION')
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
@mock.patch.object(health_manager, 'enable')
def test_post_op_scale_in(self, mock_enable):
action = mock.Mock(action=consts.CLUSTER_SCALE_IN)
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'enable')
def test_post_op_update(self, mock_enable):
action = mock.Mock(action=consts.CLUSTER_UPDATE)
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'enable')
def test_post_op_cluster_recover(self, mock_enable):
action = mock.Mock(action=consts.CLUSTER_RECOVER)
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'enable')
def test_post_op_cluster_replace_nodes(self, mock_enable):
action = mock.Mock(action=consts.CLUSTER_REPLACE_NODES)
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'enable')
def test_post_op_cluster_del_nodes(self, mock_enable):
action = mock.Mock(action=consts.CLUSTER_DEL_NODES)
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
@mock.patch.object(health_manager, 'enable')
def test_post_op_node_delete(self, mock_enable):
action = mock.Mock(action=consts.NODE_DELETE)
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
@mock.patch.object(su, 'parse_resize_params')
@mock.patch.object(health_manager, 'enable')
def test_post_op_resize_without_data(self, mock_enable, mock_parse):
def fake_check(action, cluster, current):
action.data['deletion'] = {'foo': 'bar'}
return pb.CHECK_OK, 'good'
x_cluster = mock.Mock()
x_cluster.nodes = [mock.Mock(), mock.Mock()]
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_RESIZE)
action.entity = x_cluster
mock_parse.side_effect = fake_check
res = self.hp.post_op(self.cluster.id, action)
self.assertTrue(res)
mock_enable.assert_called_once_with(self.cluster.id)
mock_parse.assert_called_once_with(action, x_cluster, 2)
@mock.patch.object(su, 'parse_resize_params')
@mock.patch.object(health_manager, 'enable')
def test_post_op_resize_parse_error(self, mock_enable, mock_parse):
x_cluster = mock.Mock()
x_cluster.nodes = [mock.Mock()]
action = mock.Mock(context='action_context', data={},
action=consts.CLUSTER_RESIZE)
action.entity = x_cluster
mock_parse.return_value = pb.CHECK_ERROR, 'no good'
res = self.hp.post_op(self.cluster.id, action)
self.assertFalse(res)
self.assertEqual(pb.CHECK_ERROR, action.data['status'])
self.assertEqual('no good', action.data['reason'])
mock_parse.assert_called_once_with(action, x_cluster, 1)
self.assertEqual(0, mock_enable.call_count)