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import unittest
from unittest.mock import Mock, patch, PropertyMock
import consul
from consul import ConsulException, NotFound
from patroni.dcs import get_dcs
from patroni.dcs.consul import AbstractDCS, Cluster, Consul, ConsulClient, ConsulError, \
ConsulInternalError, HTTPClient, InvalidSession, InvalidSessionTTL, RetryFailedError
from patroni.postgresql.misc import PostgresqlRole, PostgresqlState
from patroni.postgresql.mpp import get_mpp
from . import SleepException
def kv_get(self, key, **kwargs):
if key == 'service/test/members/postgresql1':
return '1', {'Session': 'fd4f44fe-2cac-bba5-a60b-304b51ff39b7'}
if key == 'service/test/':
return None, None
if key == 'service/good/leader':
return '1', None
if key == 'service/good/sync':
return '1', {'ModifyIndex': 1, 'Value': b'{}'}
good_cls = ('6429',
[{'CreateIndex': 1334, 'Flags': 0, 'Key': key + 'failover', 'LockIndex': 0,
'ModifyIndex': 1334, 'Value': b''},
{'CreateIndex': 1334, 'Flags': 0, 'Key': key + '1/initialize', 'LockIndex': 0,
'ModifyIndex': 1334, 'Value': b'postgresql0'},
{'CreateIndex': 1334, 'Flags': 0, 'Key': key + 'initialize', 'LockIndex': 0,
'ModifyIndex': 1334, 'Value': b'postgresql0'},
{'CreateIndex': 2621, 'Flags': 0, 'Key': key + 'leader', 'LockIndex': 1,
'ModifyIndex': 2621, 'Session': 'fd4f44fe-2cac-bba5-a60b-304b51ff39b7', 'Value': b'postgresql1'},
{'CreateIndex': 6156, 'Flags': 0, 'Key': key + 'members/postgresql0', 'LockIndex': 1,
'ModifyIndex': 6156, 'Session': '782e6da4-ed02-3aef-7963-99a90ed94b53',
'Value': ('postgres://replicator:rep-pass@127.0.0.1:5432/postgres'
+ '?application_name=http://127.0.0.1:8008/patroni').encode('utf-8')},
{'CreateIndex': 2630, 'Flags': 0, 'Key': key + 'members/postgresql1', 'LockIndex': 1,
'ModifyIndex': 2630, 'Session': 'fd4f44fe-2cac-bba5-a60b-304b51ff39b7',
'Value': ('postgres://replicator:rep-pass@127.0.0.1:5433/postgres'
+ '?application_name=http://127.0.0.1:8009/patroni').encode('utf-8')},
{'CreateIndex': 1085, 'Flags': 0, 'Key': key + 'optime/leader', 'LockIndex': 0,
'ModifyIndex': 6429, 'Value': b'4496294792'},
{'CreateIndex': 1085, 'Flags': 0, 'Key': key + 'sync', 'LockIndex': 0,
'ModifyIndex': 6429, 'Value': b'{"leader": "leader", "sync_standby": null}'},
{'CreateIndex': 1085, 'Flags': 0, 'Key': key + 'failsafe', 'LockIndex': 0,
'ModifyIndex': 6429, 'Value': b'{'},
{'CreateIndex': 1085, 'Flags': 0, 'Key': key + 'status', 'LockIndex': 0, 'ModifyIndex': 6429,
'Value': b'{"optime":4496294792,"slots":{"ls":12345},"retain_slots":["postgresql0","postgresql1"]}'}])
if key == 'service/good/':
return good_cls
if key == 'service/broken/':
good_cls[1][-1]['Value'] = b'{'
return good_cls
if key == 'service/legacy/':
good_cls[1].pop()
return good_cls
raise ConsulException
class TestHTTPClient(unittest.TestCase):
def setUp(self):
c = ConsulClient()
self.client = c.http
self.client.http.request = Mock()
def test_get(self):
self.client.get(Mock(), '')
self.client.get(Mock(), '', {'wait': '1s', 'index': 1, 'token': 'foo'})
self.client.http.request.return_value.status = 500
self.client.http.request.return_value.data = b'Foo'
self.assertRaises(ConsulInternalError, self.client.get, Mock(), '')
self.client.http.request.return_value.data = b"Invalid Session TTL '3000000000', must be between [10s=24h0m0s]"
self.assertRaises(InvalidSessionTTL, self.client.get, Mock(), '')
self.client.http.request.return_value.data = b"invalid session '16492f43-c2d6-5307-432f-e32d6f7bcbd0'"
self.assertRaises(InvalidSession, self.client.get, Mock(), '')
def test_unknown_method(self):
try:
self.client.bla(Mock(), '')
self.assertFail()
except Exception as e:
self.assertTrue(isinstance(e, AttributeError))
def test_put(self):
self.client.put(Mock(), '/v1/session/create')
self.client.put(Mock(), '/v1/session/create', params=[], data='{"foo": "bar"}')
KV = consul.Consul.KV if hasattr(consul.Consul, 'KV') else consul.api.kv.KV
Session = consul.Consul.Session if hasattr(consul.Consul, 'Session') else consul.api.session.Session
Agent = consul.Consul.Agent if hasattr(consul.Consul, 'Agent') else consul.api.agent.Agent
@patch.object(KV, 'get', kv_get)
class TestConsul(unittest.TestCase):
@patch.object(Session, 'create', Mock(return_value='fd4f44fe-2cac-bba5-a60b-304b51ff39b7'))
@patch.object(Session, 'renew', Mock(side_effect=NotFound))
@patch.object(KV, 'get', kv_get)
@patch.object(KV, 'delete', Mock())
def setUp(self):
self.assertIsInstance(get_dcs({'ttl': 30, 'scope': 't', 'name': 'p', 'retry_timeout': 10,
'consul': {'url': 'https://l:1', 'verify': 'on',
'key': 'foo', 'cert': 'bar', 'cacert': 'buz',
'token': 'asd', 'dc': 'dc1', 'register_service': True}}), Consul)
self.assertIsInstance(get_dcs({'ttl': 30, 'scope': 't_', 'name': 'p', 'retry_timeout': 10,
'consul': {'url': 'https://l:1', 'verify': 'on',
'cert': 'bar', 'cacert': 'buz', 'register_service': True}}), Consul)
self.c = get_dcs({'ttl': 30, 'scope': 'test', 'name': 'postgresql1', 'retry_timeout': 10,
'consul': {'host': 'localhost:1', 'register_service': True,
'service_check_tls_server_name': True}})
self.assertIsInstance(self.c, Consul)
self.c._base_path = 'service/good'
self.c.get_cluster()
@patch('time.sleep', Mock(side_effect=SleepException))
@patch.object(Session, 'create', Mock(side_effect=ConsulException))
def test_create_session(self):
self.c._session = None
self.assertRaises(SleepException, self.c.create_session)
@patch.object(Session, 'renew', Mock(side_effect=NotFound))
@patch.object(Session, 'create', Mock(side_effect=[InvalidSessionTTL, ConsulException]))
@patch.object(Agent, 'self', Mock(return_value={'Config': {'SessionTTLMin': 0}}))
@patch.object(HTTPClient, 'set_ttl', Mock(side_effect=ValueError))
def test_referesh_session(self):
self.c._session = '1'
self.assertFalse(self.c.refresh_session())
self.c._last_session_refresh = 0
self.assertRaises(ConsulError, self.c.refresh_session)
@patch.object(KV, 'delete', Mock())
def test_get_cluster(self):
self.c._base_path = 'service/test'
self.assertIsInstance(self.c.get_cluster(), Cluster)
self.assertIsInstance(self.c.get_cluster(), Cluster)
self.c._base_path = 'service/fail'
self.assertRaises(ConsulError, self.c.get_cluster)
self.c._base_path = 'service/broken'
self.assertIsInstance(self.c.get_cluster(), Cluster)
self.c._base_path = 'service/legacy'
self.assertIsInstance(self.c.get_cluster(), Cluster)
def test__get_citus_cluster(self):
self.c._mpp = get_mpp({'citus': {'group': 0, 'database': 'postgres'}})
cluster = self.c.get_cluster()
self.assertIsInstance(cluster, Cluster)
self.assertIsInstance(cluster.workers[1], Cluster)
@patch.object(KV, 'delete', Mock(side_effect=[ConsulException, True, True, True]))
@patch.object(KV, 'put', Mock(side_effect=[True, ConsulException, InvalidSession]))
def test_touch_member(self):
self.c.refresh_session = Mock(return_value=False)
with patch.object(Consul, 'update_service', Mock(side_effect=Exception)):
self.c.touch_member({'conn_url': 'postgres://replicator:rep-pass@127.0.0.1:5433/postgres',
'api_url': 'http://127.0.0.1:8009/patroni'})
self.c._register_service = True
self.c.refresh_session = Mock(return_value=True)
for _ in range(0, 4):
self.c.touch_member({'balbla': 'blabla'})
self.c.refresh_session = Mock(side_effect=ConsulError('foo'))
self.assertFalse(self.c.touch_member({'balbla': 'blabla'}))
@patch.object(KV, 'put', Mock(side_effect=[InvalidSession, False, InvalidSession]))
def test_take_leader(self):
self.c.set_ttl(20)
self.c._do_refresh_session = Mock()
self.assertFalse(self.c.take_leader())
with patch('time.time', Mock(side_effect=[0, 0, 0, 100, 100, 100])):
self.assertFalse(self.c.take_leader())
@patch.object(KV, 'put', Mock(return_value=True))
def test_set_failover_value(self):
self.c.set_failover_value('')
@patch.object(KV, 'put', Mock(return_value=True))
def test_set_config_value(self):
self.c.set_config_value('')
@patch.object(Cluster, 'min_version', PropertyMock(return_value=(2, 0)))
@patch.object(KV, 'put', Mock(side_effect=ConsulException))
def test_write_leader_optime(self):
self.c.get_cluster()
self.c.write_leader_optime('1')
@patch.object(Session, 'renew')
@patch.object(KV, 'put', Mock(side_effect=ConsulException))
def test_update_leader(self, mock_renew):
cluster = self.c.get_cluster()
self.c._session = 'fd4f44fe-2cac-bba5-a60b-304b51ff39b8'
with patch.object(KV, 'delete', Mock(return_value=True)):
with patch.object(KV, 'put', Mock(return_value=True)):
self.assertTrue(self.c.update_leader(cluster, 12345, failsafe={'foo': 'bar'}))
with patch.object(KV, 'put', Mock(side_effect=ConsulException)):
self.assertFalse(self.c.update_leader(cluster, 12345))
mock_time = Mock(side_effect=[0, 0, 0, 0, 100, 200, 300])
with patch('time.time', mock_time), patch('time.time_ns', mock_time, create=True):
self.assertRaises(ConsulError, self.c.update_leader, cluster, 12345)
with patch('time.time', Mock(side_effect=[0, 100, 200, 300])):
self.assertRaises(ConsulError, self.c.update_leader, cluster, 12345)
with patch.object(KV, 'delete', Mock(side_effect=ConsulException)):
self.assertFalse(self.c.update_leader(cluster, 12347))
mock_renew.side_effect = RetryFailedError('')
self.c._last_session_refresh = 0
self.assertRaises(ConsulError, self.c.update_leader, cluster, 12346)
mock_renew.side_effect = ConsulException
self.assertFalse(self.c.update_leader(cluster, 12347))
@patch.object(KV, 'delete', Mock(return_value=True))
def test_delete_leader(self):
leader = self.c.get_cluster().leader
self.c.delete_leader(leader)
self.c._name = 'other'
self.c.delete_leader(leader)
@patch.object(KV, 'put', Mock(return_value=True))
def test_initialize(self):
self.c.initialize()
@patch.object(KV, 'delete', Mock(return_value=True))
def test_cancel_initialization(self):
self.c.cancel_initialization()
@patch.object(KV, 'delete', Mock(return_value=True))
def test_delete_cluster(self):
self.c.delete_cluster()
@patch.object(AbstractDCS, 'watch', Mock())
def test_watch(self):
self.c.watch(None, 1)
self.c._name = ''
self.c.watch(6429, 1)
with patch.object(KV, 'get', Mock(side_effect=ConsulException)):
self.c.watch(6429, 1)
def test_set_retry_timeout(self):
self.c.set_retry_timeout(10)
@patch.object(KV, 'delete', Mock(return_value=True))
@patch.object(KV, 'put', Mock(return_value=True))
def test_sync_state(self):
self.assertEqual(self.c.set_sync_state_value('{}'), 1)
with patch('time.time', Mock(side_effect=[1, 100, 1000])):
self.assertFalse(self.c.set_sync_state_value('{}'))
with patch.object(KV, 'put', Mock(return_value=False)):
self.assertFalse(self.c.set_sync_state_value('{}'))
self.assertTrue(self.c.delete_sync_state())
@patch.object(KV, 'put', Mock(return_value=True))
def test_set_history_value(self):
self.assertTrue(self.c.set_history_value('{}'))
@patch.object(Agent.Service, 'register', Mock(side_effect=(False, True, True, True)))
@patch.object(Agent.Service, 'deregister', Mock(return_value=True))
def test_update_service(self):
d = {'role': PostgresqlRole.REPLICA, 'api_url': 'http://a/t', 'conn_url': 'pg://c:1',
'state': PostgresqlState.RUNNING}
self.assertIsNone(self.c.update_service({}, {}))
self.assertFalse(self.c.update_service({}, d))
self.assertTrue(self.c.update_service(d, d))
self.assertIsNone(self.c.update_service(d, d))
d['state'] = PostgresqlState.STOPPED
self.assertTrue(self.c.update_service(d, d, force=True))
d['state'] = PostgresqlState.STARTING
self.assertIsNone(self.c.update_service({}, d))
d['state'] = PostgresqlState.RUNNING
d['role'] = 'bla'
self.assertIsNone(self.c.update_service({}, d))
d['role'] = PostgresqlRole.PRIMARY
self.assertTrue(self.c.update_service({}, d))
@patch.object(KV, 'put', Mock(side_effect=ConsulException))
def test_reload_config(self):
self.assertEqual([], self.c._service_tags)
self.c.reload_config({'consul': {'token': 'foo', 'register_service': True, 'service_tags': ['foo']},
'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10})
self.assertEqual(["foo"], self.c._service_tags)
self.c.refresh_session = Mock(return_value=False)
d = {'role': PostgresqlRole.REPLICA, 'api_url': 'http://a/t',
'conn_url': 'pg://c:1', 'state': PostgresqlState.RUNNING}
# Changing register_service from True to False calls deregister()
self.c.reload_config({'consul': {'register_service': False}, 'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10})
with patch.object(Agent.Service, 'deregister') as mock_deregister:
self.c.touch_member(d)
mock_deregister.assert_called_once()
self.assertEqual([], self.c._service_tags)
# register_service staying False between reloads does not call deregister()
self.c.reload_config({'consul': {'register_service': False}, 'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10})
with patch.object(Agent.Service, 'deregister') as mock_deregister:
self.c.touch_member(d)
self.assertFalse(mock_deregister.called)
# Changing register_service from False to True calls register()
self.c.reload_config({'consul': {'register_service': True}, 'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10})
with patch.object(Agent.Service, 'register') as mock_register:
self.c.touch_member(d)
mock_register.assert_called_once()
# register_service staying True between reloads does not call register()
self.c.reload_config({'consul': {'register_service': True}, 'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10})
with patch.object(Agent.Service, 'register') as mock_register:
self.c.touch_member(d)
self.assertFalse(mock_deregister.called)
# register_service staying True between reloads does calls register() if other service data has changed
self.c.reload_config({'consul': {'register_service': True}, 'loop_wait': 10, 'ttl': 30, 'retry_timeout': 10})
with patch.object(Agent.Service, 'register') as mock_register:
self.c.touch_member(d)
mock_register.assert_called_once()
# register_service staying True between reloads does calls register() if service_tags have changed
self.c.reload_config({'consul': {'register_service': True, 'service_tags': ['foo']}, 'loop_wait': 10,
'ttl': 30, 'retry_timeout': 10})
with patch.object(Agent.Service, 'register') as mock_register:
self.c.touch_member(d)
mock_register.assert_called_once()
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