Merge pull request #211 from zalando/feature/environment-configuration

Implement possibility to configure Patroni via environment
This commit is contained in:
Alexander Kukushkin
2016-06-14 10:10:09 +02:00
committed by GitHub
12 changed files with 283 additions and 76 deletions
+7 -1
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@@ -75,7 +75,13 @@ run:
YAML Configuration
===============
Go `here <https://github.com/zalando/patroni/blob/master/SETTINGS.rst>`__ for comprehensive information about settings for etcd, consul, and ZooKeeper. And for an example, see `postgres0.yml <https://github.com/zalando/patroni/blob/master/postgres0.yml>`__.
Go `here <https://github.com/zalando/patroni/blob/master/docs/SETTINGS.rst>`__ for comprehensive information about settings for etcd, consul, and ZooKeeper. And for an example, see `postgres0.yml <https://github.com/zalando/patroni/blob/master/postgres0.yml>`__.
=========================
Environment Configuration
=========================
Go `here <https://github.com/zalando/patroni/blob/master/docs/ENVIRONMENT.rst>`__ for comprehensive information about configuring(overriding) settings via environment variables.
===============
Replication Choices
+58
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@@ -0,0 +1,58 @@
==================================
Environment Configuration Settings
==================================
It is possible to override some of the configuration parameters defined in the Patroni configuration file using the system environment variables. This document lists all environment variables handled by Patroni. The values set via those variables always take precedence over the ones set in the Patroni configuration file.
Global/Universal
----------------
- **PATRONI\_CONFIGURATION**: it is possible to set the entire configuration for the Patroni via ``PATRONI_CONFIGURATION`` environment variable. In this case any other environment variables will not be considered!
- **PATRONI\_NAME**: name of the node where the current instance of Patroni is running. Must be unique for the cluster.
- **PATRONI\_NAMESPACE**: path within the configuration store where Patroni will keep information about the cluster. Default value: "/service"
- **PATRONI\_SCOPE**: cluster name
Bootstrap configuration
-----------------------
It is possible to create new database users right after the successful initialization of a new cluster. This process is defined by the following variables:
- **PATRONI\_<username>\_PASSWORD='<password>'**
- **PATRONI\_<username>\_OPTIONS='list,of,options'**
Example: defining ``PATRONI_admin_PASSWORD=strongpasswd`` and ``PATRONI_admin_OPTIONS='createrole,createdb'`` will cause creation of the user **admin** with the password **strongpasswd** that is allowed to create other users and databases.
Consul
------
- **PATRONI\_CONSUL\_HOST**: the host:port for the Consul endpoint.
Etcd
----
- **PATRONI\_ETCD\_HOST**: the host:port for the etcd endpoint.
Exhibitor
---------
- **PATRONI\_EXHIBITOR\_HOSTS**: initial list of Exhibitor (ZooKeeper) nodes in format: ['host1', 'host2', 'etc...' ]. This list updates automatically whenever the Exhibitor (ZooKeeper) cluster topology changes.
- **PATRONI\_EXHIBITOR\_PORT**: Exhibitor port.
PostgreSQL
----------
- **PATRONI\_POSTGRESQL\_LISTEN**: IP address + port that Postgres listens to. Multiple comma-separated addresses are permitted, as long as the port component is appended after to the last one with a colon, i.e. ``listen: 127.0.0.1,127.0.0.2:5432``. Patroni will use the first address from this list to establish local connections to the PostgreSQL node.
- **PATRONI\_POSTGRESQL\_CONNECT\_ADDRESS**: IP address + port through which Postgres is accessible from other nodes and applications.
- **PATRONI\_POSTGRESQL\_DATA\_DIR**: The location of the Postgres data directory, either existing or to be initialized by Patroni.
- **PATRONI\_POSTGRESQL\_PGPASS**: path to the `.pgpass <https://www.postgresql.org/docs/current/static/libpq-pgpass.html>`__ password file. Patroni creates this file before executing pg\_basebackup and under some other circumstances. The location must be writable by Patroni.
- **PATRONI\_REPLICATION\_USERNAME**: replication username; the user will be created during initialization. Replicas will use this user to access master via streaming replication
- **PATRONI\_REPLICATION\_PASSWORD**: replication password; the user will be created during initialization.
- **PATRONI\_SUPERUSER\_USERNAME**: name for the superuser, set during initialization (initdb) and later used by Patroni to connect to the postgres. Also this user is used by pg_rewind.
- **PATRONI\_SUPERUSER\_PASSWORD**: password for the superuser, set during initialization (initdb).
REST API
--------
- **PATRONI\_RESTAPI\_CONNECT\_ADDRESS**: IP address and port to access the REST API.
- **PATRONI\_RESTAPI\_LISTEN**: IP address and port that Patroni will listen to, to provide health-check information for HAProxy.
- **PATRONI\_RESTAPI\_USERNAME**: Basic-auth username to protect unsafe REST API endpoints.
- **PATRONI\_RESTAPI\_PASSWORD**: Basic-auth password to protect unsafe REST API endpoints.
- **PATRONI\_RESTAPI\_CERTFILE**: Specifies the file with the certificate in the PEM format. If the certfile is not specified or is left empty, the API server will work without SSL.
- **PATRONI\_RESTAPI\_KEYFILE**: Specifies the file with the secret key in the PEM format.
ZooKeeper
---------
- **PATRONI\_ZOOKEEPER\_HOSTS**: comma separated list of ZooKeeper cluster members: 'host1:port1,host2:port2,etc...'
+12 -8
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@@ -5,7 +5,7 @@ YAML Configuration Settings
Global/Universal
----------------
- **name**: the name of the host. Must be unique for the cluster.
- **namespace**: path within configuration store where Patroni will keep information about cluster. Default value: "/service"
- **namespace**: path within the configuration store where Patroni will keep information about the cluster. Default value: "/service"
- **scope**: cluster name
Bootstrap configuration
@@ -54,8 +54,8 @@ PostgreSQL
- **username**: name for the superuser, set during initialization (initdb) and later used by Patroni to connect to the postgres.
- **password**: password for the superuser, set during initialization (initdb).
- **replication**:
- **username**: replication username; user will be created during initialization.
- **password**: replication password; user will be created during initialization.
- **username**: replication username; the user will be created during initialization. Replicas will use this user to access master via streaming replication
- **password**: replication password; the user will be created during initialization.
- **callbacks**: callback scripts to run on certain actions. Patroni will pass the action, role and cluster name. (See scripts/aws.py as an example of how to write them.)
- **on\_reload**: run this script when configuration reload is triggered.
- **on\_restart**: run this script when the cluster restarts.
@@ -64,20 +64,24 @@ PostgreSQL
- **on\_stop**: run this script when the cluster stops.
- **connect\_address**: IP address + port through which Postgres is accessible from other nodes and applications.
- **create\_replica\_methods**: an ordered list of the create methods for turning a Patroni node into a new replica. "basebackup" is the default method; other methods are assumed to refer to scripts, each of which is configured as its own config item.
- **data\_dir**: file path to initialize and store Postgres data files.
- **data\_dir**: The location of the Postgres data directory, either existing or to be initialized by Patroni.
- **listen**: IP address + port that Postgres listens to; must be accessible from other nodes in the cluster, if you're using streaming replication. Multiple comma-separated addresses are permitted, as long as the port component is appended after to the last one with a colon, i.e. ``listen: 127.0.0.1,127.0.0.2:5432``. Patroni will use the first address from this list to establish local connections to the PostgreSQL node.
- **pgpass**: path to the `.pgpass <https://www.postgresql.org/docs/current/static/libpq-pgpass.html>`__ password file. Patroni creates this file before executing pg\_basebackup and under some other circumstances. The location must be writable by Patroni.
- **recovery\_conf**: additional configuration settings written to recovery.conf when configuring follower.
- **parameters**: list of configuration settings for Postgres. Many of these are required for replication to work.
- **replica\_method** for each create_replica_method other than basebackup, you would add a configuration section of the same name. At a minimum, this should include "command" with a full path to the actual script to be executed. Other configuration parameters will be passed along to the script in the form "parameter=value".
REST API
--------
- **connect\_address**: IP address and port through which restapi is accessible.
- **connect\_address**: IP address and port to access the REST API.
- **listen**: IP address and port that Patroni will listen to, to provide health-check information for HAProxy.
- **Optional**:
- **auth**: 'username:password' to protect dangerous REST API endpoints.
- **certfile**: Specifies a file with the certificate in the PEM format. If the certfile is not specified or is left empty, the API server will work without SSL.
- **keyfile**: Specifies a file with the secret key in the PEM format.
- **authentication**:
- **username**: Basic-auth username to protect unsafe REST API endpoints.
- **password**: Basic-auth password to protect unsafe REST API endpoints.
- **certfile**: Specifies the file with the certificate in the PEM format. If the certfile is not specified or is left empty, the API server will work without SSL.
- **keyfile**: Specifies the file with the secret key in the PEM format.
ZooKeeper
----------
+3 -17
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@@ -1,7 +1,5 @@
import logging
import os
import signal
import sys
import time
from patroni.api import RestApiServer
@@ -17,11 +15,10 @@ logger = logging.getLogger(__name__)
class Patroni(object):
PATRONI_CONFIG_VARIABLE = 'PATRONI_CONFIGURATION'
def __init__(self, config_file=None, config_env=None):
def __init__(self):
self.version = __version__
self.config = Config(config_file=config_file, config_env=config_env)
self.config = Config()
self.dcs = get_dcs(self.config)
self.load_dynamic_configuration()
@@ -116,18 +113,7 @@ def main():
logging.getLogger('requests').setLevel(logging.WARNING)
setup_signal_handlers()
# Patroni reads the configuration from the command-line argument if it exists, and from the environment otherwise.
config_env = False
config_file = len(sys.argv) >= 2 and os.path.isfile(sys.argv[1]) and sys.argv[1]
if not config_file:
config_env = os.environ.get(Patroni.PATRONI_CONFIG_VARIABLE)
if config_env is None:
print('Usage: {0} config.yml'.format(sys.argv[0]))
print('\tPatroni may also read the configuration from the {} environment variable'.
format(Patroni.PATRONI_CONFIG_VARIABLE))
return
patroni = Patroni(config_file, config_env)
patroni = Patroni()
try:
patroni.run()
except KeyboardInterrupt:
+7 -22
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@@ -9,7 +9,7 @@ import datetime
import pytz
from patroni.exceptions import PostgresConnectionException
from patroni.utils import deep_compare, Retry, RetryFailedError
from patroni.utils import deep_compare, patch_config, Retry, RetryFailedError
from six.moves.BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
from six.moves.socketserver import ThreadingMixIn
from threading import Thread
@@ -106,26 +106,11 @@ class RestApiHandler(BaseHTTPRequestHandler):
self._write_status_response(200, response)
def do_GET_config(self):
self._write_json_response(200, self.server.patroni.config.dynamic_configuration)
@staticmethod
def _patch_config(config, data):
is_changed = False
for name, value in data.items():
if value is None:
if config.pop(name, None) is not None:
is_changed = True
elif name in config:
if isinstance(value, dict):
if RestApiHandler._patch_config(config[name], value):
is_changed = True
elif str(config[name]) != str(value):
config[name] = value
is_changed = True
else:
config[name] = value
is_changed = True
return is_changed
cluster = self.server.patroni.ha.dcs.cluster or self.server.patroni.ha.dcs.get_cluster()
if cluster.config:
self._write_json_response(200, cluster.config.data)
else:
self.send_error(502)
def _read_json_content(self):
if 'content-length' not in self.headers:
@@ -145,7 +130,7 @@ class RestApiHandler(BaseHTTPRequestHandler):
if request:
cluster = self.server.patroni.ha.dcs.get_cluster()
data = cluster.config.data.copy()
if RestApiHandler._patch_config(data, request):
if patch_config(data, request):
value = json.dumps(data, separators=(',', ':'))
if not self.server.patroni.ha.dcs.set_config_value(value, cluster.config.index):
return self.send_error(409)
+114 -6
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@@ -1,13 +1,15 @@
import json
import logging
import os
import sys
import tempfile
import yaml
from collections import defaultdict
from copy import deepcopy
from patroni.dcs import ClusterConfig
from patroni.postgresql import Postgresql
from patroni.utils import deep_compare
from patroni.utils import deep_compare, parse_int, patch_config
logger = logging.getLogger(__name__)
@@ -32,6 +34,9 @@ class Config(object):
to work with it as with the old `config` object.
"""
PATRONI_ENV_PREFIX = 'PATRONI_'
PATRONI_CONFIG_VARIABLE = PATRONI_ENV_PREFIX + 'CONFIGURATION'
__CACHE_FILENAME = 'patroni.dynamic.json'
__DEFAULT_CONFIG = {
'ttl': 30, 'loop_wait': 10, 'retry_timeout': 10,
@@ -42,11 +47,25 @@ class Config(object):
}
}
def __init__(self, config_file=None, config_env=None):
self._config_file = None if config_env else config_file
def __init__(self):
self._modify_index = -1
self._dynamic_configuration = {}
self._local_configuration = yaml.safe_load(config_env) if config_env else self._load_config_file()
self.__environment_configuration = self._build_environment_configuration()
# Patroni reads the configuration from the command-line argument if it exists, otherwise from the environment
self._config_file = len(sys.argv) >= 2 and os.path.isfile(sys.argv[1]) and sys.argv[1]
if self._config_file:
self._local_configuration = self._load_config_file()
else:
config_env = os.environ.pop(self.PATRONI_CONFIG_VARIABLE, None)
self._local_configuration = config_env and yaml.safe_load(config_env) or self.__environment_configuration
if not self._local_configuration:
print('Usage: {0} config.yml'.format(sys.argv[0]))
print('\tPatroni may also read the configuration from the {0} environment variable'.
format(self.PATRONI_CONFIG_VARIABLE))
exit(1)
self.__effective_configuration = self._build_effective_configuration(self._dynamic_configuration,
self._local_configuration)
self._data_dir = self.__effective_configuration['postgresql']['data_dir']
@@ -63,8 +82,11 @@ class Config(object):
return deepcopy(self._dynamic_configuration)
def _load_config_file(self):
"""Loads config.yaml from filesystem and applies some values which were set via ENV"""
with open(self._config_file) as f:
return yaml.safe_load(f)
config = yaml.safe_load(f)
patch_config(config, self.__environment_configuration)
return config
def _load_cache(self):
if os.path.isfile(self._cache_file):
@@ -149,10 +171,90 @@ class Config(object):
config['postgresql'][name].update(self._process_postgresql_parameters(value))
elif name not in ('connect_address', 'listen', 'data_dir', 'pgpass', 'authentication'):
config['postgresql'][name] = deepcopy(value)
elif name in config:
elif name in config: # only variables present in __DEFAULT_CONFIG allowed to be overriden from DCS
config[name] = int(value)
return config
@staticmethod
def _build_environment_configuration():
ret = defaultdict(dict)
def _popenv(name):
return os.environ.pop(Config.PATRONI_ENV_PREFIX + name.upper(), None)
for param in ('name', 'namespace', 'scope'):
value = _popenv(param)
if value:
ret[param] = value
def _set_section_values(section, params):
for param in params:
value = _popenv(section + '_' + param)
if value:
ret[section][param] = value
_set_section_values('restapi', ['listen', 'connect_address', 'certfile', 'keyfile'])
_set_section_values('postgresql', ['listen', 'connect_address', 'data_dir', 'pgpass'])
def _get_auth(name):
ret = {}
for param in ('username', 'password'):
value = _popenv(name + '_' + param)
if value:
ret[param] = value
return len(ret) == 2 and ret or None
restapi_auth = _get_auth('restapi')
if restapi_auth:
ret['restapi']['authentication'] = restapi_auth
authentication = {}
for user_type in ('replication', 'superuser'):
entry = _get_auth(user_type)
if entry:
authentication[user_type] = entry
if authentication:
ret['postgresql']['authentication'] = authentication
users = {}
def _parse_list(value):
if not (value.strip().startswith('-') or '[' in value):
value = '[{0}]'.format(value)
try:
return yaml.safe_load(value)
except Exception:
return None
for param in list(os.environ.keys()):
if param.startswith(Config.PATRONI_ENV_PREFIX):
name, suffix = (param[8:].rsplit('_', 1) + [''])[:2]
if name and suffix:
# PATRONI_(ETCD|CONSUL|ZOOKEEPER|EXHIBITOR|...)_(HOSTS?|PORT)
if suffix in ('HOST', 'HOSTS', 'PORT') and '_' not in name:
value = os.environ.pop(param)
if suffix == 'PORT':
value = value and parse_int(value)
elif suffix == 'HOSTS':
value = value and _parse_list(value)
if value:
ret[name.lower()][suffix.lower()] = value
# PATRONI_<username>_PASSWORD=<password>, PATRONI_<username>_OPTIONS=<option1,option2,...>
# CREATE USER "<username>" WITH <OPTIONS> PASSWORD '<password>'
elif suffix == 'PASSWORD':
password = os.environ.pop(param)
if password:
users[name] = {'password': password}
options = os.environ.pop(param[:-9] + '_OPTIONS', None)
options = options and _parse_list(options)
if options:
users[name]['options'] = options
if users:
ret['bootstrap']['users'] = users
return ret
def _build_effective_configuration(self, dynamic_configuration, local_configuration):
config = self._safe_copy_dynamic_configuration(dynamic_configuration)
for name, value in local_configuration.items():
@@ -165,6 +267,12 @@ class Config(object):
elif name not in config:
config[name] = deepcopy(value) if value else {}
# restapi server expects to get restapi.auth = 'username:password'
if 'authentication' in config['restapi']:
restapi = config['restapi']
auth = restapi['authentication']
restapi['auth'] = '{0}:{1}'.format(auth['username'], auth['password'])
# special treatment for old config
# 'exhibitor' inside 'zookeeper':
+25
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@@ -60,6 +60,31 @@ def deep_compare(obj1, obj2):
return True
def patch_config(config, data):
"""recursively 'patch' `config` with `data`
:returns: `!True` if the `config` was changed"""
is_changed = False
for name, value in data.items():
if value is None:
if config.pop(name, None) is not None:
is_changed = True
elif name in config:
if isinstance(value, dict):
if isinstance(config[name], dict):
if patch_config(config[name], value):
is_changed = True
else:
config[name] = value
is_changed = True
elif str(config[name]) != str(value):
config[name] = value
is_changed = True
else:
config[name] = value
is_changed = True
return is_changed
def parse_bool(value):
"""
>>> parse_bool(1)
+3
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@@ -4,6 +4,9 @@ name: postgresql0
restapi:
listen: 127.0.0.1:8008
# authentication:
# username: username
# password: password
connect_address: 127.0.0.1:8008
etcd:
+6 -4
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@@ -118,9 +118,11 @@ class TestRestApiHandler(unittest.TestCase):
self.assertIsNotNone(MockRestApiServer(RestApiHandler, 'POST /restart HTTP/1.0'))
MockRestApiServer(RestApiHandler, 'POST /restart HTTP/1.0\nAuthorization:')
@patch.object(MockPatroni, 'config')
def test_do_GET_config(self, mock_config):
mock_config.dynamic_configuration = {}
@patch.object(MockHa, 'dcs')
def test_do_GET_config(self, mock_dcs):
mock_dcs.cluster.config.data = {}
self.assertIsNotNone(MockRestApiServer(RestApiHandler, 'GET /config'))
mock_dcs.cluster.config = None
self.assertIsNotNone(MockRestApiServer(RestApiHandler, 'GET /config'))
@patch.object(MockHa, 'dcs')
@@ -132,7 +134,7 @@ class TestRestApiHandler(unittest.TestCase):
request += '\nContent-Length: '
self.assertIsNotNone(MockRestApiServer(RestApiHandler, request + '34\n\n{"postgresql":{"use_slots":false}}'))
config['ttl'] = 5
config['postgresql'].update({'use_slots': True, "parameters": None})
config['postgresql'].update({'use_slots': {'foo': True}, "parameters": None})
config = json.dumps(config)
request += str(len(config)) + '\n\n' + config
MockRestApiServer(RestApiHandler, request)
+38 -3
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@@ -1,4 +1,6 @@
import os
import unittest
import sys
from mock import MagicMock, Mock, patch
from patroni.config import Config
@@ -11,15 +13,48 @@ class TestConfig(unittest.TestCase):
@patch('json.load', Mock(side_effect=Exception))
@patch.object(builtins, 'open', MagicMock())
def setUp(self):
self.config = Config(config_env='postgresql: {data_dir: foo}')
sys.argv = ['patroni.py']
os.environ[Config.PATRONI_CONFIG_VARIABLE] = 'restapi: {}\npostgresql: {data_dir: foo}'
self.config = Config()
def test_no_config(self):
self.assertRaises(SystemExit, Config)
@patch.object(Config, '_build_effective_configuration', Mock(side_effect=Exception))
def test_set_dynamic_configuration(self):
self.assertIsNone(self.config.set_dynamic_configuration({'foo': 'bar'}))
def test_reload_local_configuration(self):
config = Config(config_file='postgres0.yml')
with patch.object(Config, '_load_config_file', Mock(return_value={})):
os.environ.update({
'PATRONI_NAME': 'postgres0',
'PATRONI_NAMESPACE': '/patroni/',
'PATRONI_SCOPE': 'batman2',
'PATRONI_RESTAPI_USERNAME': 'username',
'PATRONI_RESTAPI_PASSWORD': 'password',
'PATRONI_RESTAPI_LISTEN': '0.0.0.0:8008',
'PATRONI_RESTAPI_CONNECT_ADDRESS': '127.0.0.1:8008',
'PATRONI_RESTAPI_CERTFILE': '/certfile',
'PATRONI_RESTAPI_KEYFILE': '/keyfile',
'PATRONI_POSTGRESQL_LISTEN': '0.0.0.0:5432',
'PATRONI_POSTGRESQL_CONNECT_ADDRESS': '127.0.0.1:5432',
'PATRONI_POSTGRESQL_DATA_DIR': 'data/postgres0',
'PATRONI_POSTGRESQL_PGPASS': '/tmp/pgpass0',
'PATRONI_ETCD_HOST': '127.0.0.1:2379',
'PATRONI_CONSUL_HOST': '127.0.0.1:8500',
'PATRONI_ZOOKEEPER_HOSTS': 'host1,host2',
'PATRONI_EXHIBITOR_HOSTS': 'host1,host2',
'PATRONI_EXHIBITOR_PORT': '8181',
'PATRONI_foo_HOSTS': '[host1,host2', # Exception in parse_list
'PATRONI_SUPERUSER_USERNAME': 'postgres',
'PATRONI_SUPERUSER_PASSWORD': 'zalando',
'PATRONI_REPLICATION_USERNAME': 'replicator',
'PATRONI_REPLICATION_PASSWORD': 'rep-pass',
'PATRONI_admin_PASSWORD': 'admin',
'PATRONI_admin_OPTIONS': 'createrole,createdb'
})
sys.argv = ['patroni.py', 'postgres0.yml']
config = Config()
with patch.object(Config, '_load_config_file', Mock(return_value={'restapi': {}})):
with patch.object(Config, '_build_effective_configuration', Mock(side_effect=Exception)):
self.assertRaises(Exception, config.reload_local_configuration, True)
self.assertTrue(config.reload_local_configuration(True))
+8 -4
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@@ -1,7 +1,8 @@
import etcd
import unittest
import datetime
import etcd
import os
import pytz
import unittest
from mock import Mock, MagicMock, patch
from patroni.config import Config
@@ -49,7 +50,9 @@ def get_cluster_initialized_with_only_leader(failover=None):
class MockPatroni(object):
def __init__(self, p, d):
self.config = Config(config_env="""
os.environ[Config.PATRONI_CONFIG_VARIABLE] = """
restapi:
listen: 0.0.0.0:8008
bootstrap:
users:
replicator:
@@ -66,7 +69,8 @@ zookeeper:
exhibitor:
hosts: [localhost]
port: 8181
""")
"""
self.config = Config()
self.postgresql = p
self.dcs = d
self.api = Mock()
+2 -11
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@@ -1,5 +1,4 @@
import etcd
import os
import sys
import time
import unittest
@@ -34,7 +33,8 @@ class TestPatroni(unittest.TestCase):
RestApiServer.socket = 0
with patch.object(etcd.Client, 'machines') as mock_machines:
mock_machines.__get__ = Mock(return_value=['http://remotehost:2379'])
self.p = Patroni('postgres0.yml')
sys.argv = ['patroni.py', 'postgres0.yml']
self.p = Patroni()
@patch('patroni.dcs.AbstractDCS.get_cluster', Mock(side_effect=[None, DCSError('foo'), None]))
def test_load_dynamic_configuration(self):
@@ -47,7 +47,6 @@ class TestPatroni(unittest.TestCase):
@patch.object(etcd.Client, 'machines')
def test_patroni_main(self, mock_machines):
with patch('subprocess.call', Mock(return_value=1)):
_main()
sys.argv = ['patroni.py', 'postgres0.yml']
mock_machines.__get__ = Mock(return_value=['http://remotehost:2379'])
@@ -55,14 +54,6 @@ class TestPatroni(unittest.TestCase):
self.assertRaises(SleepException, _main)
with patch.object(Patroni, 'run', Mock(side_effect=KeyboardInterrupt())):
_main()
sys.argv = ['patroni.py']
# read the content of the yaml configuration file into the environment variable
# in order to test how does patroni handle the configuration passed from the environment.
with open('postgres0.yml', 'r') as f:
os.environ[Patroni.PATRONI_CONFIG_VARIABLE] = f.read()
with patch.object(Patroni, 'run', Mock(side_effect=SleepException())):
self.assertRaises(SleepException, _main)
del os.environ[Patroni.PATRONI_CONFIG_VARIABLE]
@patch('patroni.config.Config.save_cache', Mock())
@patch('patroni.config.Config.reload_local_configuration', Mock(return_value=True))