mirror of
https://github.com/outbackdingo/patroni.git
synced 2026-08-25 14:53:37 +00:00
Alexander KukushkinandGitHub
6d65aa311a
Current problem of Patroni that strikes many people is that it removes replication slot for member which key is expired from DCS. As a result, when the replica comes back from a scheduled maintenance WAL segments could be already absent, and it can't continue streaming without pulling files from archive. With PostgreSQL 16 and newer we get another problem: logical slot on a standby node could be invalidated if physical replication slot on the primary was removed (and `pg_catalog` vacuumed). The most problematic environment is Kubernetes, where slot is removed nearly instantly when member Pod is deleted. So far, one of the recommended solutions was to configure permanent physical slots with names that match member names to avoid removal of replication slots. It works, but depending on environment might be non-trivial to implement (when for example members may change their names). This PR implements support of `member_slots_ttl` global configuration parameter, that controls for how long member replication slots should be kept when the member key is absent. Default value is set to `30min`. The feature is supported only starting from PostgreSQL 11 and newer, because we want to retain slots not only on the leader node, but on all nodes that could potentially become the new leader, and they should be moved forward using `pg_replication_slot_advance()` function. One could disable feature and get back to the old behavior by setting `member_slots_ttl` to `0`.
532 lines
28 KiB
Python
532 lines
28 KiB
Python
import base64
|
|
import datetime
|
|
import json
|
|
import socket
|
|
import time
|
|
import unittest
|
|
|
|
from threading import Thread
|
|
from unittest import mock
|
|
from unittest.mock import Mock, mock_open, patch, PropertyMock
|
|
|
|
import urllib3
|
|
|
|
from patroni.dcs import get_dcs
|
|
from patroni.dcs.kubernetes import Cluster, k8s_client, k8s_config, K8sConfig, K8sConnectionFailed, \
|
|
K8sException, K8sObject, Kubernetes, KubernetesError, KubernetesRetriableException, Retry, \
|
|
RetryFailedError, SERVICE_HOST_ENV_NAME, SERVICE_PORT_ENV_NAME
|
|
from patroni.postgresql.mpp import get_mpp
|
|
|
|
from . import MockResponse, SleepException
|
|
|
|
|
|
def mock_list_namespaced_config_map(*args, **kwargs):
|
|
k8s_group_label = get_mpp({'citus': {'group': 0, 'database': 'postgres'}}).k8s_group_label
|
|
metadata = {'resource_version': '1', 'labels': {'f': 'b'}, 'name': 'test-config',
|
|
'annotations': {'initialize': '123', 'config': '{}'}}
|
|
items = [k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata))]
|
|
metadata.update({'name': 'test-leader',
|
|
'annotations': {'optime': '1234x', 'leader': 'p-0', 'ttl': '30s',
|
|
'slots': '{', 'retain_slots': '{', 'failsafe': '{'}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
metadata.update({'name': 'test-failover', 'annotations': {'leader': 'p-0'}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
metadata.update({'name': 'test-sync', 'annotations': {'leader': 'p-0'}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
metadata.update({'name': 'test-0-leader', 'labels': {k8s_group_label: '0'},
|
|
'annotations': {'optime': '1234x', 'leader': 'p-0', 'ttl': '30s',
|
|
'slots': '{', 'retain_slots': '{', 'failsafe': '{'}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
metadata.update({'name': 'test-0-config', 'labels': {k8s_group_label: '0'},
|
|
'annotations': {'initialize': '123', 'config': '{}'}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
metadata.update({'name': 'test-1-leader', 'labels': {k8s_group_label: '1'},
|
|
'annotations': {'leader': 'p-3', 'ttl': '30s'}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
metadata.update({'name': 'test-2-config', 'labels': {k8s_group_label: '2'}, 'annotations': {}})
|
|
items.append(k8s_client.V1ConfigMap(metadata=k8s_client.V1ObjectMeta(**metadata)))
|
|
|
|
metadata = k8s_client.V1ObjectMeta(resource_version='1')
|
|
return k8s_client.V1ConfigMapList(metadata=metadata, items=items, kind='ConfigMapList')
|
|
|
|
|
|
def mock_read_namespaced_endpoints(*args, **kwargs):
|
|
target_ref = k8s_client.V1ObjectReference(kind='Pod', resource_version='10', name='p-0',
|
|
namespace='default', uid='964dfeae-e79b-4476-8a5a-1920b5c2a69d')
|
|
address0 = k8s_client.V1EndpointAddress(ip='10.0.0.0', target_ref=target_ref)
|
|
address1 = k8s_client.V1EndpointAddress(ip='10.0.0.1')
|
|
port = k8s_client.V1EndpointPort(port=5432, name='postgresql', protocol='TCP')
|
|
subset = k8s_client.V1EndpointSubset(addresses=[address1, address0], ports=[port])
|
|
metadata = k8s_client.V1ObjectMeta(resource_version='1', labels={'f': 'b'}, name='test',
|
|
annotations={'optime': '1234', 'leader': 'p-0', 'ttl': '30s'})
|
|
return k8s_client.V1Endpoints(subsets=[subset], metadata=metadata)
|
|
|
|
|
|
def mock_list_namespaced_endpoints(*args, **kwargs):
|
|
return k8s_client.V1EndpointsList(metadata=k8s_client.V1ObjectMeta(resource_version='1'),
|
|
items=[mock_read_namespaced_endpoints()], kind='V1EndpointsList')
|
|
|
|
|
|
def mock_list_namespaced_pod(*args, **kwargs):
|
|
k8s_group_label = get_mpp({'citus': {'group': 0, 'database': 'postgres'}}).k8s_group_label
|
|
metadata = k8s_client.V1ObjectMeta(resource_version='1', labels={'f': 'b', k8s_group_label: '1'},
|
|
name='p-0', annotations={'status': '{}'},
|
|
uid='964dfeae-e79b-4476-8a5a-1920b5c2a69d')
|
|
status = k8s_client.V1PodStatus(pod_ip='10.0.0.1')
|
|
spec = k8s_client.V1PodSpec(hostname='p-0', node_name='kind-control-plane', containers=[])
|
|
items = [k8s_client.V1Pod(metadata=metadata, status=status, spec=spec)]
|
|
return k8s_client.V1PodList(items=items, kind='PodList')
|
|
|
|
|
|
def mock_namespaced_kind(*args, **kwargs):
|
|
mock = Mock()
|
|
mock.metadata.resource_version = '2'
|
|
return mock
|
|
|
|
|
|
def mock_load_k8s_config(self, *args, **kwargs):
|
|
self._server = 'http://localhost'
|
|
|
|
|
|
class TestK8sConfig(unittest.TestCase):
|
|
|
|
def test_load_incluster_config(self):
|
|
for env in ({}, {SERVICE_HOST_ENV_NAME: '', SERVICE_PORT_ENV_NAME: ''}):
|
|
with patch('os.environ', env):
|
|
self.assertRaises(k8s_config.ConfigException, k8s_config.load_incluster_config)
|
|
|
|
with patch('os.environ', {SERVICE_HOST_ENV_NAME: 'a', SERVICE_PORT_ENV_NAME: '1'}), \
|
|
patch('os.path.isfile', Mock(side_effect=[False, True, True, False, True, True, True, True])), \
|
|
patch('builtins.open', Mock(side_effect=[
|
|
mock_open()(), mock_open(read_data='a')(), mock_open(read_data='a')(),
|
|
mock_open()(), mock_open(read_data='a')(), mock_open(read_data='a')()])):
|
|
for _ in range(0, 4):
|
|
self.assertRaises(k8s_config.ConfigException, k8s_config.load_incluster_config)
|
|
k8s_config.load_incluster_config()
|
|
self.assertEqual(k8s_config.server, 'https://a:1')
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer a')
|
|
|
|
def test_refresh_token(self):
|
|
with patch('os.environ', {SERVICE_HOST_ENV_NAME: 'a', SERVICE_PORT_ENV_NAME: '1'}), \
|
|
patch('os.path.isfile', Mock(side_effect=[True, True, False, True, True, True])), \
|
|
patch('builtins.open', Mock(side_effect=[
|
|
mock_open(read_data='cert')(), mock_open(read_data='a')(),
|
|
mock_open()(), mock_open(read_data='b')(), mock_open(read_data='c')()])):
|
|
k8s_config.load_incluster_config(token_refresh_interval=datetime.timedelta(milliseconds=100))
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer a')
|
|
time.sleep(0.1)
|
|
# token file doesn't exist
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer a')
|
|
# token file is empty
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer a')
|
|
# token refreshed
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer b')
|
|
time.sleep(0.1)
|
|
# token refreshed
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer c')
|
|
# no need to refresh token
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer c')
|
|
|
|
def test_load_kube_config(self):
|
|
config = {
|
|
"current-context": "local",
|
|
"contexts": [{"name": "local", "context": {"user": "local", "cluster": "local"}}],
|
|
"clusters": [{"name": "local", "cluster": {"server": "https://a:1/", "certificate-authority": "a"}}],
|
|
"users": [{"name": "local", "user": {"username": "a", "password": "b", "client-certificate": "c"}}]
|
|
}
|
|
with patch('builtins.open', mock_open(read_data=json.dumps(config))):
|
|
k8s_config.load_kube_config()
|
|
self.assertEqual(k8s_config.server, 'https://a:1')
|
|
self.assertEqual(k8s_config.pool_config, {'ca_certs': 'a', 'cert_file': 'c', 'cert_reqs': 'CERT_REQUIRED',
|
|
'maxsize': 10, 'num_pools': 10})
|
|
|
|
config["users"][0]["user"]["token"] = "token"
|
|
with patch('builtins.open', mock_open(read_data=json.dumps(config))):
|
|
k8s_config.load_kube_config()
|
|
self.assertEqual(k8s_config.headers.get('authorization'), 'Bearer token')
|
|
|
|
config["users"][0]["user"]["client-key-data"] = base64.b64encode(b'foobar').decode('utf-8')
|
|
config["clusters"][0]["cluster"]["certificate-authority-data"] = base64.b64encode(b'foobar').decode('utf-8')
|
|
with patch('builtins.open', mock_open(read_data=json.dumps(config))), \
|
|
patch('os.write', Mock()), patch('os.close', Mock()), \
|
|
patch('os.remove') as mock_remove, \
|
|
patch('atexit.register') as mock_atexit, \
|
|
patch('tempfile.mkstemp') as mock_mkstemp:
|
|
mock_mkstemp.side_effect = [(3, '1.tmp'), (4, '2.tmp')]
|
|
k8s_config.load_kube_config()
|
|
mock_atexit.assert_called_once()
|
|
mock_remove.side_effect = OSError
|
|
mock_atexit.call_args[0][0]() # call _cleanup_temp_files
|
|
mock_remove.assert_has_calls([mock.call('1.tmp'), mock.call('2.tmp')])
|
|
|
|
|
|
@patch('urllib3.PoolManager.request')
|
|
class TestApiClient(unittest.TestCase):
|
|
|
|
@patch.object(K8sConfig, '_server', '', create=True)
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
def setUp(self):
|
|
self.a = k8s_client.ApiClient(True)
|
|
self.mock_get_ep = MockResponse()
|
|
self.mock_get_ep.content = '{"subsets":[{"ports":[{"name":"https","protocol":"TCP","port":443}],' +\
|
|
'"addresses":[{"ip":"127.0.0.1"},{"ip":"127.0.0.2"}]}]}'
|
|
|
|
def test__do_http_request(self, mock_request):
|
|
mock_request.side_effect = [self.mock_get_ep] + [socket.timeout]
|
|
self.assertRaises(K8sException, self.a.call_api, 'GET', 'f')
|
|
|
|
@patch('time.sleep', Mock())
|
|
def test_request(self, mock_request):
|
|
retry = Retry(deadline=10, max_delay=1, max_tries=1, retry_exceptions=KubernetesRetriableException)
|
|
mock_request.side_effect = [self.mock_get_ep] + 3 * [socket.timeout] + [k8s_client.rest.ApiException(500, '')]
|
|
self.assertRaises(k8s_client.rest.ApiException, retry, self.a.call_api, 'GET', 'f', _retry=retry)
|
|
mock_request.side_effect = [self.mock_get_ep, socket.timeout, Mock(), self.mock_get_ep]
|
|
self.assertRaises(k8s_client.rest.ApiException, retry, self.a.call_api, 'GET', 'f', _retry=retry)
|
|
retry.deadline = 0.0001
|
|
mock_request.side_effect = [socket.timeout, socket.timeout, self.mock_get_ep]
|
|
self.assertRaises(K8sConnectionFailed, retry, self.a.call_api, 'GET', 'f', _retry=retry)
|
|
|
|
def test__refresh_api_servers_cache(self, mock_request):
|
|
mock_request.side_effect = k8s_client.rest.ApiException(403, '')
|
|
self.a.refresh_api_servers_cache()
|
|
|
|
|
|
class TestCoreV1Api(unittest.TestCase):
|
|
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
@patch.object(K8sConfig, '_server', '', create=True)
|
|
def setUp(self):
|
|
self.a = k8s_client.CoreV1Api()
|
|
self.a._api_client.pool_manager.request = Mock(return_value=MockResponse())
|
|
|
|
def test_create_namespaced_service(self):
|
|
self.assertEqual(str(self.a.create_namespaced_service('default', {}, _request_timeout=2)), '{}')
|
|
|
|
def test_list_namespaced_endpoints(self):
|
|
self.a._api_client.pool_manager.request.return_value.content = '{"items": [1,2,3]}'
|
|
self.assertIsInstance(self.a.list_namespaced_endpoints('default'), K8sObject)
|
|
|
|
def test_patch_namespaced_config_map(self):
|
|
self.assertEqual(str(self.a.patch_namespaced_config_map('foo', 'default', {}, _request_timeout=(1, 2))), '{}')
|
|
|
|
def test_list_namespaced_pod(self):
|
|
self.a._api_client.pool_manager.request.return_value.status_code = 409
|
|
self.a._api_client.pool_manager.request.return_value.content = 'foo'
|
|
try:
|
|
self.a.list_namespaced_pod('default', label_selector='foo=bar')
|
|
self.assertFail()
|
|
except k8s_client.rest.ApiException as e:
|
|
self.assertTrue('Reason: ' in str(e))
|
|
|
|
def test_delete_namespaced_pod(self):
|
|
self.assertEqual(str(self.a.delete_namespaced_pod('foo', 'default', _request_timeout=(1, 2), body={})), '{}')
|
|
|
|
|
|
class BaseTestKubernetes(unittest.TestCase):
|
|
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
@patch('socket.TCP_KEEPIDLE', 4, create=True)
|
|
@patch('socket.TCP_KEEPINTVL', 5, create=True)
|
|
@patch('socket.TCP_KEEPCNT', 6, create=True)
|
|
@patch.object(Thread, 'start', Mock())
|
|
@patch.object(K8sConfig, 'load_kube_config', mock_load_k8s_config)
|
|
@patch.object(K8sConfig, 'load_incluster_config', Mock(side_effect=k8s_config.ConfigException))
|
|
@patch.object(k8s_client.CoreV1Api, 'list_namespaced_pod', mock_list_namespaced_pod, create=True)
|
|
@patch.object(k8s_client.CoreV1Api, 'list_namespaced_config_map', mock_list_namespaced_config_map, create=True)
|
|
def setUp(self, config=None):
|
|
config = {'ttl': 30, 'scope': 'test', 'name': 'p-0', 'loop_wait': 10, 'retry_timeout': 10,
|
|
'kubernetes': {'labels': {'f': 'b'}, 'bypass_api_service': True, **(config or {})},
|
|
'citus': {'group': 0, 'database': 'postgres'}}
|
|
self.k = get_dcs(config)
|
|
self.assertIsInstance(self.k, Kubernetes)
|
|
self.k._mpp = get_mpp({})
|
|
self.assertRaises(AttributeError, self.k._pods._build_cache)
|
|
self.k._pods._is_ready = True
|
|
self.assertRaises(TypeError, self.k._kinds._build_cache)
|
|
self.k._kinds._is_ready = True
|
|
self.k.get_cluster()
|
|
|
|
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_config_map', mock_namespaced_kind, create=True)
|
|
class TestKubernetesConfigMaps(BaseTestKubernetes):
|
|
|
|
@patch('time.time', Mock(side_effect=[1, 10.9, 100]))
|
|
def test__wait_caches(self):
|
|
self.k._pods._is_ready = False
|
|
with self.k._condition:
|
|
self.assertRaises(RetryFailedError, self.k._wait_caches, time.time() + 10)
|
|
|
|
@patch('time.time', Mock(return_value=time.time() + 100))
|
|
def test_get_cluster(self):
|
|
self.k.get_cluster()
|
|
|
|
with patch.object(Kubernetes, '_wait_caches', Mock(side_effect=Exception)):
|
|
self.assertRaises(KubernetesError, self.k.get_cluster)
|
|
|
|
def test__get_citus_cluster(self):
|
|
self.k._mpp = get_mpp({'citus': {'group': 0, 'database': 'postgres'}})
|
|
cluster = self.k.get_cluster()
|
|
self.assertIsInstance(cluster, Cluster)
|
|
self.assertIsInstance(cluster.workers[1], Cluster)
|
|
|
|
@patch('patroni.dcs.kubernetes.logger.error')
|
|
def test_get_mpp_coordinator(self, mock_logger):
|
|
self.assertIsInstance(self.k.get_mpp_coordinator(), Cluster)
|
|
with patch.object(Kubernetes, '_postgresql_cluster_loader', Mock(side_effect=Exception)):
|
|
self.assertIsNone(self.k.get_mpp_coordinator())
|
|
mock_logger.assert_called()
|
|
self.assertEqual(mock_logger.call_args[0][0], 'Failed to load %s coordinator cluster from Kubernetes: %r')
|
|
self.assertEqual(mock_logger.call_args[0][1], 'Null')
|
|
self.assertIsInstance(mock_logger.call_args[0][2], KubernetesError)
|
|
|
|
@patch('patroni.dcs.kubernetes.logger.error')
|
|
def test_get_citus_coordinator(self, mock_logger):
|
|
self.k._mpp = get_mpp({'citus': {'group': 0, 'database': 'postgres'}})
|
|
self.assertIsInstance(self.k.get_mpp_coordinator(), Cluster)
|
|
with patch.object(Kubernetes, '_postgresql_cluster_loader', Mock(side_effect=Exception)):
|
|
self.assertIsNone(self.k.get_mpp_coordinator())
|
|
mock_logger.assert_called()
|
|
self.assertEqual(mock_logger.call_args[0][0], 'Failed to load %s coordinator cluster from Kubernetes: %r')
|
|
self.assertEqual(mock_logger.call_args[0][1], 'Citus')
|
|
self.assertIsInstance(mock_logger.call_args[0][2], KubernetesError)
|
|
|
|
def test_attempt_to_acquire_leader(self):
|
|
with patch.object(k8s_client.CoreV1Api, 'patch_namespaced_config_map', create=True) as mock_patch:
|
|
mock_patch.side_effect = K8sException
|
|
self.assertRaises(KubernetesError, self.k.attempt_to_acquire_leader)
|
|
mock_patch.side_effect = k8s_client.rest.ApiException(409, '')
|
|
self.assertFalse(self.k.attempt_to_acquire_leader())
|
|
|
|
def test_take_leader(self):
|
|
self.k.take_leader()
|
|
self.k._leader_observed_record['leader'] = 'test'
|
|
self.k.patch_or_create = Mock(return_value=False)
|
|
self.k.take_leader()
|
|
|
|
def test_manual_failover(self):
|
|
with patch.object(k8s_client.CoreV1Api, 'patch_namespaced_config_map',
|
|
Mock(side_effect=RetryFailedError('')), create=True):
|
|
self.k.manual_failover('foo', 'bar')
|
|
|
|
def test_set_config_value(self):
|
|
with patch.object(k8s_client.CoreV1Api, 'patch_namespaced_config_map',
|
|
Mock(side_effect=k8s_client.rest.ApiException(409, '')), create=True):
|
|
self.k.set_config_value('{}', 1)
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_pod', create=True)
|
|
def test_touch_member(self, mock_patch_namespaced_pod):
|
|
mock_patch_namespaced_pod.return_value.metadata.resource_version = '10'
|
|
self.k.touch_member({'role': 'replica'})
|
|
self.k._name = 'p-1'
|
|
self.k.touch_member({'state': 'running', 'role': 'replica'})
|
|
self.k.touch_member({'state': 'stopped', 'role': 'primary'})
|
|
|
|
self.k._role_label = 'isMaster'
|
|
self.k._leader_label_value = 'true'
|
|
self.k._follower_label_value = 'false'
|
|
self.k._standby_leader_label_value = 'false'
|
|
self.k._tmp_role_label = 'tmp_role'
|
|
|
|
self.k.touch_member({'state': 'running', 'role': 'replica'})
|
|
mock_patch_namespaced_pod.assert_called()
|
|
self.assertEqual(mock_patch_namespaced_pod.call_args[0][2].metadata.labels['isMaster'], 'false')
|
|
self.assertEqual(mock_patch_namespaced_pod.call_args[0][2].metadata.labels['tmp_role'], 'replica')
|
|
mock_patch_namespaced_pod.rest_mock()
|
|
|
|
self.k._name = 'p-0'
|
|
self.k.touch_member({'role': 'standby_leader'})
|
|
mock_patch_namespaced_pod.assert_called()
|
|
self.assertEqual(mock_patch_namespaced_pod.call_args[0][2].metadata.labels['isMaster'], 'false')
|
|
self.assertEqual(mock_patch_namespaced_pod.call_args[0][2].metadata.labels['tmp_role'], 'master')
|
|
mock_patch_namespaced_pod.rest_mock()
|
|
|
|
self.k.touch_member({'role': 'primary'})
|
|
mock_patch_namespaced_pod.assert_called()
|
|
self.assertEqual(mock_patch_namespaced_pod.call_args[0][2].metadata.labels['isMaster'], 'true')
|
|
self.assertEqual(mock_patch_namespaced_pod.call_args[0][2].metadata.labels['tmp_role'], 'master')
|
|
|
|
def test_initialize(self):
|
|
self.k.initialize()
|
|
|
|
def test_delete_leader(self):
|
|
self.k.delete_leader(self.k.get_cluster().leader, 1)
|
|
|
|
def test_cancel_initialization(self):
|
|
self.k.cancel_initialization()
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'delete_collection_namespaced_config_map',
|
|
Mock(side_effect=k8s_client.rest.ApiException(403, '')), create=True)
|
|
def test_delete_cluster(self):
|
|
self.k.delete_cluster()
|
|
|
|
def test_watch(self):
|
|
self.k.set_ttl(10)
|
|
self.k.watch(None, 0)
|
|
self.k.watch('5', 0)
|
|
|
|
def test_set_history_value(self):
|
|
self.k.set_history_value('{}')
|
|
|
|
@patch('patroni.dcs.kubernetes.logger.warning')
|
|
def test_reload_config(self, mock_warning):
|
|
self.k.reload_config({'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10, 'retriable_http_codes': '401, 403 '})
|
|
self.assertEqual(self.k._api._retriable_http_codes, self.k._api._DEFAULT_RETRIABLE_HTTP_CODES | set([401, 403]))
|
|
self.k.reload_config({'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10, 'retriable_http_codes': 402})
|
|
self.assertEqual(self.k._api._retriable_http_codes, self.k._api._DEFAULT_RETRIABLE_HTTP_CODES | set([402]))
|
|
self.k.reload_config({'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10, 'retriable_http_codes': [405, 406]})
|
|
self.assertEqual(self.k._api._retriable_http_codes, self.k._api._DEFAULT_RETRIABLE_HTTP_CODES | set([405, 406]))
|
|
self.k.reload_config({'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10, 'retriable_http_codes': True})
|
|
mock_warning.assert_called_once()
|
|
|
|
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
class TestKubernetesEndpointsNoPodIP(BaseTestKubernetes):
|
|
@patch.object(k8s_client.CoreV1Api, 'list_namespaced_endpoints', mock_list_namespaced_endpoints, create=True)
|
|
def setUp(self, config=None):
|
|
super(TestKubernetesEndpointsNoPodIP, self).setUp({'use_endpoints': True})
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_endpoints', create=True)
|
|
def test_update_leader(self, mock_patch_namespaced_endpoints):
|
|
self.assertIsNotNone(self.k.update_leader(self.k.get_cluster(), '123', failsafe={'foo': 'bar'}))
|
|
args = mock_patch_namespaced_endpoints.call_args[0]
|
|
self.assertEqual(args[2].subsets[0].addresses[0].target_ref.resource_version, '1')
|
|
self.assertEqual(args[2].subsets[0].addresses[0].ip, '10.0.0.1')
|
|
|
|
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
class TestKubernetesEndpoints(BaseTestKubernetes):
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'list_namespaced_endpoints', mock_list_namespaced_endpoints, create=True)
|
|
def setUp(self, config=None):
|
|
super(TestKubernetesEndpoints, self).setUp({'use_endpoints': True, 'pod_ip': '10.0.0.0'})
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_endpoints', create=True)
|
|
def test_update_leader(self, mock_patch_namespaced_endpoints):
|
|
cluster = self.k.get_cluster()
|
|
self.assertIsNotNone(self.k.update_leader(cluster, '123', failsafe={'foo': 'bar'}))
|
|
args = mock_patch_namespaced_endpoints.call_args[0]
|
|
self.assertEqual(args[2].subsets[0].addresses[0].target_ref.resource_version, '10')
|
|
self.assertEqual(args[2].subsets[0].addresses[0].ip, '10.0.0.0')
|
|
self.k._kinds._object_cache['test'].subsets[:] = []
|
|
self.assertIsNotNone(self.k.update_leader(cluster, '123'))
|
|
self.k._kinds._object_cache['test'].metadata.annotations['leader'] = 'p-1'
|
|
self.assertFalse(self.k.update_leader(cluster, '123'))
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'read_namespaced_endpoints', create=True)
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_endpoints', create=True)
|
|
def test__update_leader_with_retry(self, mock_patch, mock_read):
|
|
cluster = self.k.get_cluster()
|
|
mock_read.return_value = mock_read_namespaced_endpoints()
|
|
mock_patch.side_effect = k8s_client.rest.ApiException(502, '')
|
|
self.assertFalse(self.k.update_leader(cluster, '123'))
|
|
mock_patch.side_effect = RetryFailedError('')
|
|
self.assertRaises(KubernetesError, self.k.update_leader, cluster, '123')
|
|
mock_patch.side_effect = k8s_client.rest.ApiException(409, '')
|
|
with patch('time.time', Mock(side_effect=[0, 0, 100, 200, 0, 0, 0, 0, 0, 100, 200])):
|
|
self.assertFalse(self.k.update_leader(cluster, '123'))
|
|
self.assertFalse(self.k.update_leader(cluster, '123'))
|
|
self.assertFalse(self.k.update_leader(cluster, '123'))
|
|
mock_patch.side_effect = [k8s_client.rest.ApiException(409, ''), mock_namespaced_kind()]
|
|
mock_read.return_value.metadata.resource_version = '2'
|
|
self.assertIsNotNone(self.k._update_leader_with_retry({}, '1', []))
|
|
mock_patch.side_effect = k8s_client.rest.ApiException(409, '')
|
|
mock_read.side_effect = RetryFailedError('')
|
|
self.assertRaises(KubernetesError, self.k.update_leader, cluster, '123')
|
|
mock_read.side_effect = Exception
|
|
self.assertFalse(self.k.update_leader(cluster, '123'))
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_endpoints',
|
|
Mock(side_effect=[k8s_client.rest.ApiException(500, ''),
|
|
k8s_client.rest.ApiException(502, '')]), create=True)
|
|
def test_delete_sync_state(self):
|
|
self.assertFalse(self.k.delete_sync_state(1))
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_endpoints', mock_namespaced_kind, create=True)
|
|
def test_write_sync_state(self):
|
|
self.assertIsNotNone(self.k.write_sync_state('a', ['b'], 0, 1))
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_pod', mock_namespaced_kind, create=True)
|
|
@patch.object(k8s_client.CoreV1Api, 'create_namespaced_endpoints', mock_namespaced_kind, create=True)
|
|
@patch.object(k8s_client.CoreV1Api, 'create_namespaced_service',
|
|
Mock(side_effect=[True,
|
|
False,
|
|
k8s_client.rest.ApiException(409, ''),
|
|
k8s_client.rest.ApiException(403, ''),
|
|
k8s_client.rest.ApiException(500, ''),
|
|
Exception("Unexpected")
|
|
]), create=True)
|
|
@patch('patroni.dcs.kubernetes.logger.exception')
|
|
def test__create_config_service(self, mock_logger_exception):
|
|
self.assertIsNotNone(self.k.patch_or_create_config({'foo': 'bar'}))
|
|
self.assertIsNotNone(self.k.patch_or_create_config({'foo': 'bar'}))
|
|
|
|
self.k.patch_or_create_config({'foo': 'bar'})
|
|
mock_logger_exception.assert_not_called()
|
|
|
|
self.k.patch_or_create_config({'foo': 'bar'})
|
|
mock_logger_exception.assert_not_called()
|
|
|
|
self.k.patch_or_create_config({'foo': 'bar'})
|
|
mock_logger_exception.assert_called_once()
|
|
self.assertEqual(('create_config_service failed',), mock_logger_exception.call_args[0])
|
|
mock_logger_exception.reset_mock()
|
|
|
|
self.k.touch_member({'state': 'running', 'role': 'replica'})
|
|
mock_logger_exception.assert_called_once()
|
|
self.assertEqual(('create_config_service failed',), mock_logger_exception.call_args[0])
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'patch_namespaced_endpoints', mock_namespaced_kind, create=True)
|
|
def test_write_leader_optime(self):
|
|
self.k.write_leader_optime(12345)
|
|
|
|
|
|
def mock_watch(*args):
|
|
return urllib3.HTTPResponse()
|
|
|
|
|
|
@patch('urllib3.PoolManager.request', Mock())
|
|
class TestCacheBuilder(BaseTestKubernetes):
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'list_namespaced_config_map', mock_list_namespaced_config_map, create=True)
|
|
@patch('patroni.dcs.kubernetes.ObjectCache._watch', mock_watch)
|
|
@patch.object(urllib3.HTTPResponse, 'read_chunked')
|
|
def test__build_cache(self, mock_read_chunked):
|
|
self.k._mpp = get_mpp({'citus': {'group': 0, 'database': 'postgres'}})
|
|
mock_read_chunked.return_value = [json.dumps(
|
|
{'type': 'MODIFIED', 'object': {'metadata': {
|
|
'name': self.k.config_path, 'resourceVersion': '2', 'annotations': {self.k._CONFIG: 'foo'}}}}
|
|
).encode('utf-8'), ('\n' + json.dumps(
|
|
{'type': 'DELETED', 'object': {'metadata': {
|
|
'name': self.k.config_path, 'resourceVersion': '3'}}}
|
|
) + '\n' + json.dumps(
|
|
{'type': 'MDIFIED', 'object': {'metadata': {'name': self.k.config_path}}}
|
|
) + '\n').encode('utf-8'), b'{"object":{', b'"code":410}}\n']
|
|
self.k._kinds._build_cache()
|
|
|
|
@patch('patroni.dcs.kubernetes.logger.error', Mock(side_effect=SleepException))
|
|
@patch('patroni.dcs.kubernetes.ObjectCache._build_cache', Mock(side_effect=Exception))
|
|
def test_run(self):
|
|
self.assertRaises(SleepException, self.k._pods.run)
|
|
|
|
@patch('time.sleep', Mock())
|
|
def test__list(self):
|
|
self.k._pods._func = Mock(side_effect=Exception)
|
|
self.assertRaises(Exception, self.k._pods._list)
|
|
|
|
@patch('patroni.dcs.kubernetes.ObjectCache._watch', Mock(return_value=None))
|
|
def test__do_watch(self):
|
|
self.assertRaises(AttributeError, self.k._kinds._do_watch, '1')
|
|
|
|
@patch.object(k8s_client.CoreV1Api, 'list_namespaced_config_map', mock_list_namespaced_config_map, create=True)
|
|
@patch('patroni.dcs.kubernetes.ObjectCache._watch', mock_watch)
|
|
@patch.object(urllib3.HTTPResponse, 'read_chunked', Mock(return_value=[]))
|
|
def test_kill_stream(self):
|
|
self.k._kinds.kill_stream()
|
|
with patch.object(urllib3.HTTPResponse, 'connection') as mock_connection:
|
|
mock_connection.sock.close.side_effect = Exception
|
|
self.k._kinds._do_watch('1')
|
|
self.k._kinds.kill_stream()
|
|
with patch.object(urllib3.HTTPResponse, 'connection', PropertyMock(side_effect=Exception)):
|
|
self.k._kinds.kill_stream()
|