mirror of
https://github.com/outbackdingo/patroni.git
synced 2026-08-25 14:53:37 +00:00
Alexander KukushkinandGitHub
b299b12f58
* Add https and auth support for etcd Also implement support of PATRONI_ETCD_URL and PATRONI_ETCD_SRV environment variables * Implement etcd.proxy etcd.cacert, etcd.cert and etcd.key support Now it should be possible to set up fully encrypted connection to etcd with authorization.
297 lines
12 KiB
Python
297 lines
12 KiB
Python
import etcd
|
|
import json
|
|
import requests
|
|
import socket
|
|
import unittest
|
|
|
|
from dns.exception import DNSException
|
|
from mock import Mock, patch
|
|
from patroni.dcs.etcd import AbstractDCS, Client, Cluster, Etcd, EtcdError
|
|
from patroni.exceptions import DCSError
|
|
from urllib3.exceptions import ReadTimeoutError
|
|
|
|
|
|
class MockResponse(object):
|
|
|
|
def __init__(self, status_code=200):
|
|
self.status_code = status_code
|
|
self.content = '{}'
|
|
self.ok = True
|
|
self.text = ''
|
|
|
|
def json(self):
|
|
return json.loads(self.content)
|
|
|
|
@property
|
|
def data(self):
|
|
return self.content.encode('utf-8')
|
|
|
|
@property
|
|
def status(self):
|
|
return self.status_code
|
|
|
|
@staticmethod
|
|
def getheader(*args):
|
|
return ''
|
|
|
|
|
|
def requests_get(url, **kwargs):
|
|
members = '[{"id":14855829450254237642,"peerURLs":["http://localhost:2380","http://localhost:7001"],' +\
|
|
'"name":"default","clientURLs":["http://localhost:2379","http://localhost:4001"]}]'
|
|
response = MockResponse()
|
|
if url.startswith('http://local'):
|
|
raise requests.exceptions.RequestException()
|
|
elif ':8011/patroni' in url:
|
|
response.content = '{"role": "replica", "xlog": {"replayed_location": 0}, "tags": {}}'
|
|
elif url.endswith('/members'):
|
|
response.content = '[{}]' if url.startswith('http://error') else members
|
|
elif url.startswith('http://exhibitor'):
|
|
response.content = '{"servers":["127.0.0.1","127.0.0.2","127.0.0.3"],"port":2181}'
|
|
else:
|
|
response.status_code = 404
|
|
response.ok = False
|
|
return response
|
|
|
|
|
|
def etcd_watch(self, key, index=None, timeout=None, recursive=None):
|
|
if timeout == 2.0:
|
|
raise etcd.EtcdWatchTimedOut
|
|
elif timeout == 5.0:
|
|
return etcd.EtcdResult('delete', {})
|
|
elif timeout == 10.0:
|
|
raise etcd.EtcdException
|
|
|
|
|
|
def etcd_write(self, key, value, **kwargs):
|
|
if key == '/service/exists/leader':
|
|
raise etcd.EtcdAlreadyExist
|
|
if key in ['/service/test/leader', '/patroni/test/leader'] and \
|
|
(kwargs.get('prevValue') == 'foo' or not kwargs.get('prevExist', True)):
|
|
return True
|
|
raise etcd.EtcdException
|
|
|
|
|
|
def etcd_read(self, key, **kwargs):
|
|
if key == '/service/noleader/':
|
|
raise DCSError('noleader')
|
|
elif key == '/service/nocluster/':
|
|
raise etcd.EtcdKeyNotFound
|
|
|
|
response = {"action": "get", "node": {"key": "/service/batman5", "dir": True, "nodes": [
|
|
{"key": "/service/batman5/config", "value": '{"foo": "bar"}',
|
|
"modifiedIndex": 1582, "createdIndex": 1582},
|
|
{"key": "/service/batman5/failover", "value": "",
|
|
"modifiedIndex": 1582, "createdIndex": 1582},
|
|
{"key": "/service/batman5/initialize", "value": "postgresql0",
|
|
"modifiedIndex": 1582, "createdIndex": 1582},
|
|
{"key": "/service/batman5/leader", "value": "postgresql1",
|
|
"expiration": "2015-05-15T09:11:00.037397538Z", "ttl": 21,
|
|
"modifiedIndex": 20728, "createdIndex": 20434},
|
|
{"key": "/service/batman5/optime", "dir": True, "nodes": [
|
|
{"key": "/service/batman5/optime/leader", "value": "2164261704",
|
|
"modifiedIndex": 20729, "createdIndex": 20729}],
|
|
"modifiedIndex": 20437, "createdIndex": 20437},
|
|
{"key": "/service/batman5/sync", "value": '{"leader": "leader"}',
|
|
"modifiedIndex": 1582, "createdIndex": 1582},
|
|
{"key": "/service/batman5/members", "dir": True, "nodes": [
|
|
{"key": "/service/batman5/members/postgresql1",
|
|
"value": "postgres://replicator:[email protected]:5434/postgres" +
|
|
"?application_name=http://127.0.0.1:8009/patroni",
|
|
"expiration": "2015-05-15T09:10:59.949384522Z", "ttl": 21,
|
|
"modifiedIndex": 20727, "createdIndex": 20727},
|
|
{"key": "/service/batman5/members/postgresql0",
|
|
"value": "postgres://replicator:[email protected]:5433/postgres" +
|
|
"?application_name=http://127.0.0.1:8008/patroni",
|
|
"expiration": "2015-05-15T09:11:09.611860899Z", "ttl": 30,
|
|
"modifiedIndex": 20730, "createdIndex": 20730}],
|
|
"modifiedIndex": 1581, "createdIndex": 1581}], "modifiedIndex": 1581, "createdIndex": 1581}}
|
|
result = etcd.EtcdResult(**response)
|
|
result.etcd_index = 0
|
|
return result
|
|
|
|
|
|
class SleepException(Exception):
|
|
pass
|
|
|
|
|
|
def dns_query(name, _):
|
|
if '-server' not in name or '-ssl' in name:
|
|
return []
|
|
if name == '_etcd-server._tcp.blabla':
|
|
return []
|
|
elif name == '_etcd-server._tcp.exception':
|
|
raise DNSException()
|
|
srv = Mock()
|
|
srv.port = 2380
|
|
srv.target.to_text.return_value = 'localhost' if name == '_etcd-server._tcp.foobar' else '127.0.0.1'
|
|
return [srv]
|
|
|
|
|
|
def socket_getaddrinfo(*args):
|
|
if args[0] == 'ok':
|
|
return [(2, 1, 6, '', ('127.0.0.1', 2379)), (2, 1, 6, '', ('127.0.0.1', 2379))]
|
|
raise socket.error
|
|
|
|
|
|
def http_request(method, url, **kwargs):
|
|
if url == 'http://localhost:2379/timeout':
|
|
raise ReadTimeoutError(None, None, None)
|
|
if url == 'http://localhost:2379/v2/machines':
|
|
ret = MockResponse()
|
|
ret.content = 'http://localhost:2379,http://localhost:4001'
|
|
return ret
|
|
if url == 'http://localhost:2379/':
|
|
return MockResponse()
|
|
raise socket.error
|
|
|
|
|
|
@patch('dns.resolver.query', dns_query)
|
|
@patch('socket.getaddrinfo', socket_getaddrinfo)
|
|
@patch('requests.get', requests_get)
|
|
class TestClient(unittest.TestCase):
|
|
|
|
@patch('dns.resolver.query', dns_query)
|
|
@patch('requests.get', requests_get)
|
|
def setUp(self):
|
|
with patch.object(Client, 'machines') as mock_machines:
|
|
mock_machines.__get__ = Mock(return_value=['http://localhost:2379', 'http://localhost:4001'])
|
|
self.client = Client({'srv': 'test', 'retry_timeout': 3})
|
|
self.client.http.request = http_request
|
|
self.client.http.request_encode_body = http_request
|
|
|
|
def test_machines(self):
|
|
self.client._base_uri = 'http://localhost:4001'
|
|
self.client._machines_cache = ['http://localhost:2379']
|
|
self.assertIsNotNone(self.client.machines)
|
|
self.client._base_uri = 'http://localhost:4001'
|
|
self.client._machines_cache = []
|
|
self.assertIsNotNone(self.client.machines)
|
|
self.client._update_machines_cache = True
|
|
machines = None
|
|
try:
|
|
machines = self.client.machines
|
|
self.assertFail()
|
|
except Exception:
|
|
self.assertIsNone(machines)
|
|
|
|
@patch.object(Client, 'machines')
|
|
def test_api_execute(self, mock_machines):
|
|
mock_machines.__get__ = Mock(return_value=['http://localhost:2379'])
|
|
self.assertRaises(ValueError, self.client.api_execute, '', '')
|
|
self.client._base_uri = 'http://localhost:4001'
|
|
self.client._machines_cache = ['http://localhost:2379']
|
|
self.client.api_execute('/', 'POST', timeout=0)
|
|
self.assertRaises(etcd.EtcdWatchTimedOut, self.client.api_execute, '/timeout', 'POST', params={'wait': 'true'})
|
|
self.assertRaises(etcd.EtcdException, self.client.api_execute, '/', '')
|
|
self.client._update_machines_cache = True
|
|
with patch.object(Client, '_load_machines_cache', Mock(side_effect=etcd.EtcdException)):
|
|
self.assertRaises(etcd.EtcdException, self.client.api_execute, '/', 'GET')
|
|
|
|
def test_get_srv_record(self):
|
|
self.assertEquals(self.client.get_srv_record('_etcd-server._tcp.blabla'), [])
|
|
self.assertEquals(self.client.get_srv_record('_etcd-server._tcp.exception'), [])
|
|
|
|
def test__get_machines_cache_from_srv(self):
|
|
self.client._get_machines_cache_from_srv('foobar')
|
|
self.client.get_srv_record = Mock(return_value=[('localhost', 2380)])
|
|
self.client._get_machines_cache_from_srv('blabla')
|
|
|
|
def test__get_machines_cache_from_dns(self):
|
|
self.client._get_machines_cache_from_dns('error', 2379)
|
|
|
|
@patch.object(Client, 'machines')
|
|
def test__load_machines_cache(self, mock_machines):
|
|
mock_machines.__get__ = Mock(return_value=['http://localhost:2379'])
|
|
self.client._config = {}
|
|
self.assertRaises(Exception, self.client._load_machines_cache)
|
|
self.client._config = {'srv': 'blabla'}
|
|
self.assertRaises(etcd.EtcdException, self.client._load_machines_cache)
|
|
|
|
|
|
@patch('requests.get', requests_get)
|
|
@patch.object(etcd.Client, 'write', etcd_write)
|
|
@patch.object(etcd.Client, 'read', etcd_read)
|
|
@patch.object(etcd.Client, 'delete', Mock(side_effect=etcd.EtcdException))
|
|
class TestEtcd(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
with patch.object(Client, 'machines') as mock_machines:
|
|
mock_machines.__get__ = Mock(return_value=['http://localhost:2379', 'http://localhost:4001'])
|
|
self.etcd = Etcd({'namespace': '/patroni/', 'ttl': 30, 'retry_timeout': 10,
|
|
'host': 'localhost:2379', 'scope': 'test', 'name': 'foo'})
|
|
|
|
def test_base_path(self):
|
|
self.assertEquals(self.etcd._base_path, '/patroni/test')
|
|
|
|
@patch('dns.resolver.query', dns_query)
|
|
def test_get_etcd_client(self):
|
|
with patch.object(Client, 'machines') as mock_machines:
|
|
mock_machines.__get__ = Mock(side_effect=etcd.EtcdException)
|
|
with patch('time.sleep', Mock(side_effect=SleepException)):
|
|
self.assertRaises(SleepException, self.etcd.get_etcd_client,
|
|
{'discovery_srv': 'test', 'retry_timeout': 10, 'cacert': '1', 'key': '1', 'cert': 1})
|
|
self.assertRaises(SleepException, self.etcd.get_etcd_client,
|
|
{'url': 'https://test:2379', 'retry_timeout': 10})
|
|
self.assertRaises(SleepException, self.etcd.get_etcd_client,
|
|
{'proxy': 'https://user:password@test:2379', 'retry_timeout': 10})
|
|
|
|
def test_get_cluster(self):
|
|
self.assertIsInstance(self.etcd.get_cluster(), Cluster)
|
|
self.etcd._base_path = '/service/nocluster'
|
|
cluster = self.etcd.get_cluster()
|
|
self.assertIsInstance(cluster, Cluster)
|
|
self.assertIsNone(cluster.leader)
|
|
self.etcd._base_path = '/service/noleader'
|
|
self.assertRaises(EtcdError, self.etcd.get_cluster)
|
|
|
|
def test_touch_member(self):
|
|
self.assertFalse(self.etcd.touch_member('', ''))
|
|
|
|
def test_take_leader(self):
|
|
self.assertFalse(self.etcd.take_leader())
|
|
|
|
def test_attempt_to_acquire_leader(self):
|
|
self.etcd._base_path = '/service/exists'
|
|
self.assertFalse(self.etcd.attempt_to_acquire_leader())
|
|
self.etcd._base_path = '/service/failed'
|
|
self.assertFalse(self.etcd.attempt_to_acquire_leader())
|
|
|
|
def test_write_leader_optime(self):
|
|
self.etcd.write_leader_optime('0')
|
|
|
|
def test_update_leader(self):
|
|
self.assertTrue(self.etcd.update_leader())
|
|
|
|
def test_initialize(self):
|
|
self.assertFalse(self.etcd.initialize())
|
|
|
|
def test_cancel_initializion(self):
|
|
self.assertFalse(self.etcd.cancel_initialization())
|
|
|
|
def test_delete_leader(self):
|
|
self.assertFalse(self.etcd.delete_leader())
|
|
|
|
def test_delete_cluster(self):
|
|
self.assertFalse(self.etcd.delete_cluster())
|
|
|
|
@patch.object(etcd.Client, 'watch', etcd_watch)
|
|
def test_watch(self):
|
|
self.etcd.watch(None, 0)
|
|
self.etcd.get_cluster()
|
|
self.etcd.watch(20729, 1.5)
|
|
self.etcd.watch(20729, 4.5)
|
|
with patch.object(AbstractDCS, 'watch', Mock()):
|
|
self.etcd.watch(20729, 9.5)
|
|
|
|
def test_other_exceptions(self):
|
|
self.etcd.retry = Mock(side_effect=AttributeError('foo'))
|
|
self.assertRaises(EtcdError, self.etcd.cancel_initialization)
|
|
|
|
def test_set_ttl(self):
|
|
self.etcd.set_ttl(20)
|
|
self.assertTrue(self.etcd.watch(None, 1))
|
|
|
|
def test_sync_state(self):
|
|
self.assertFalse(self.etcd.write_sync_state('leader', None))
|
|
self.assertFalse(self.etcd.delete_sync_state())
|