def test_wait_before_retry(self):
must_stop = mock.Mock()
stdout_consumer = (
ConsumerRegister.get_consumer('Stdout')['consumer_cls']({}))
stdout_consumer._wait_before_retry(must_stop)
must_stop.wait.assert_called_once_with(
timeout=stdout_consumer.retry_delay)
def test_wait_before_retry(self, time_mock):
must_stop = threading.Event()
stdout_consumer = (
ConsumerRegister.get_consumer('Stdout')['consumer_cls']({}))
stdout_consumer._wait_before_retry(must_stop)
time_mock.sleep.assert_called_with(1)
self.assertEquals(time_mock.sleep.call_count,
stdout_consumer.retry_delay)
def launch(self):
"""Launch sauna daemon
Start consumers and producer threads.
"""
signal.signal(signal.SIGTERM, self.term_handler)
signal.signal(signal.SIGINT, self.term_handler)
consumers_threads = []
for consumer_data in self.consumers:
consumer_name = consumer_data['type']
consumer_info = ConsumerRegister.get_consumer(consumer_name)
if not consumer_info:
print('Plugin {} does not exist'.format(consumer_name))
exit(1)
try:
consumer = consumer_info['consumer_cls'](consumer_data)
except DependencyError as e:
print(str(e))
self.term_handler()
exit(1)
if isinstance(consumer, QueuedConsumer):
consumer_queue = queue.Queue()
self._consumers_queues.append(consumer_queue)
else:
consumer_queue = None
consumer_thread = threading.Thread(
name='consumer_{}'.format(consumer_name),
target=consumer.run,
args=(self.must_stop, consumer_queue)
)
consumer_thread.start()
consumers_threads.append(consumer_thread)
logging.debug(
'Running consumer {}'.format(consumer_name)
)
producer = threading.Thread(
name='producer', target=self.run_producer
)
producer.start()
producer.join()
self.term_handler()
for consumer_thread in consumers_threads:
consumer_thread.join()
logging.debug('Exited main thread')
def launch(self):
"""Launch sauna daemon
Start consumers and producer threads.
"""
signal.signal(signal.SIGTERM, self.term_handler)
signal.signal(signal.SIGINT, self.term_handler)
consumers_threads = []
for consumer_data in self.consumers:
consumer_name = consumer_data['type']
consumer_info = ConsumerRegister.get_consumer(consumer_name)
if not consumer_info:
print('Plugin {} does not exist'.format(consumer_name))
sys.exit(1)
try:
consumer = consumer_info['consumer_cls'](consumer_data)
except DependencyError as e:
print(str(e))
self.term_handler()
sys.exit(1)
if isinstance(consumer, QueuedConsumer):
consumer_queue = queue.Queue()
self._consumers_queues.append(consumer_queue)
else:
consumer_queue = None
consumer_thread = threading.Thread(
name='consumer_{}'.format(consumer_name),
target=consumer.run,
args=(self.must_stop, consumer_queue)
)
consumer_thread.start()
consumers_threads.append(consumer_thread)
logger.debug(
'Running consumer {}'.format(consumer_name)
)
producer = threading.Thread(
name='producer', target=self.run_producer
)
producer.start()
producer.join()
self.term_handler()
for consumer_thread in consumers_threads:
consumer_thread.join()
logger.debug('Exited main thread')
def launch(self):
# Start producer and consumer threads
producer = threading.Thread(name='producer', target=self.run_producer)
producer.start()
consumers_threads = []
for consumer_name, consumer_config in self.config['consumers'].items():
consumer_info = ConsumerRegister.get_consumer(consumer_name)
if not consumer_info:
print('Plugin {} does not exist'.format(consumer_name))
exit(1)
try:
consumer = consumer_info['consumer_cls'](consumer_config)
except DependencyError as e:
print(str(e))
exit(1)
if isinstance(consumer, QueuedConsumer):
consumer_queue = queue.Queue()
self._consumers_queues.append(consumer_queue)
else:
consumer_queue = None
consumer_thread = threading.Thread(
name='consumer_{}'.format(consumer_name),
target=consumer.run,
args=(self.must_stop, consumer_queue))
consumer_thread.start()
consumers_threads.append(consumer_thread)
logging.debug('Running {} with {}'.format(consumer_name,
consumer_config))
signal.signal(signal.SIGTERM, self.term_handler)
signal.signal(signal.SIGINT, self.term_handler)
producer.join()
self.term_handler()
for consumer_thread in consumers_threads:
consumer_thread.join()
logging.debug('Exited main thread')
def test_get_consumer(self):
stdout_consumer = ConsumerRegister.get_consumer('Stdout')
self.assert_(issubclass(stdout_consumer['consumer_cls'],
base.Consumer))
must_be_none = ConsumerRegister.get_consumer('Unknown')
self.assertIsNone(must_be_none)
def test_get_consumer(self):
stdout_consumer = ConsumerRegister.get_consumer('Stdout')
self.assert_(issubclass(stdout_consumer['consumer_cls'],
base.Consumer))
must_be_none = ConsumerRegister.get_consumer('Unknown')
self.assertIsNone(must_be_none)
from sauna.consumers.base import QueuedConsumer
from sauna.consumers import ConsumerRegister
my_consumer = ConsumerRegister('HTTP')
@my_consumer.consumer()
class HTTPConsumer(QueuedConsumer):
def __init__(self, config):
super().__init__(config)
try:
import requests
self.requests = requests
except ImportError:
from ... import DependencyError
raise DependencyError(self.__class__.__name__, 'requests',
'requests', 'python3-requests')
self.config = {
'url': config.get('url', 'http://localhost'),
'timeout': config.get('timeout', 60),
'headers': config.get('headers', None)
}
def _send(self, service_check):
data = {
'timestamp': service_check.timestamp,
'hostname': service_check.hostname,
'service': service_check.name,
'status': service_check.status,
'output': service_check.output
}
from sauna.consumers.base import QueuedConsumer
from sauna.consumers import ConsumerRegister
my_consumer = ConsumerRegister('Stdout')
@my_consumer.consumer()
class StdoutConsumer(QueuedConsumer):
def _send(self, service_check):
print(service_check)
@staticmethod
def config_sample():
return '''
# Just prints checks on the standard output
Stdout:
'''
import socket
import select
from collections import defaultdict
from sauna.consumers.base import AsyncConsumer
from sauna.consumers import ConsumerRegister
my_consumer = ConsumerRegister('TCPServer')
@my_consumer.consumer()
class TCPServerConsumer(AsyncConsumer):
service_checks = {}
def __init__(self, config):
super().__init__(config)
self.config = {
'port': config.get('port', 5555),
'backlog': config.get('port', 128),
'keepalive': config.get('keepalive', True)
}
self.read_wanted, self.write_wanted = ([], [])
self.write_buffers = defaultdict(bytes)
def _create_server(self):
self.server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.server.setblocking(0)
self.server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.server.bind(('', self.config['port']))
self.server.listen(self.config['backlog'])
import socket
import struct
import binascii
from copy import deepcopy
import itertools
from sauna.consumers.base import QueuedConsumer
from sauna.consumers import ConsumerRegister
my_consumer = ConsumerRegister('NSCA')
def encrypt_xor(data, iv, key):
for i in (iv, key):
i = itertools.cycle(i)
data = bytes(x ^ y for x, y in zip(data, i))
return data
@my_consumer.consumer()
class NSCAConsumer(QueuedConsumer):
protocol_version = 3
max_hostname_size = 64
max_service_size = 128
max_output_size = 4096
init_payload_fmt = '!128sL'
init_payload_size = struct.calcsize(init_payload_fmt)
service_payload_fmt = '!hhIIh{}s{}s{}sh'.format(max_hostname_size,
max_service_size,
# forked from http.py to match icinga Rest API
from sauna.consumers.base import QueuedConsumer
from sauna.consumers import ConsumerRegister
my_consumer = ConsumerRegister('HTTP-icinga')
@my_consumer.consumer()
class HTTPIcingaConsumer(QueuedConsumer):
def __init__(self, config):
super().__init__(config)
try:
import requests
self.requests = requests
except ImportError:
from ... import DependencyError
raise DependencyError(self.__class__.__name__, 'requests',
'requests', 'python3-requests')
self.config = {
'url': config.get('url', 'http://localhost'),
'timeout': config.get('timeout', 60),
'headers': config.get('headers', None)
}
def _send(self, service_check):
data = {
"filter": ("host.name==\"" + service_check.hostname +
"\" && service.name==\"" + service_check.name + "\""),
"exit_status":
service_check.status,
"plugin_output":
import json
from http.server import HTTPServer, BaseHTTPRequestHandler
from sauna.consumers.base import AsyncConsumer
from sauna.consumers import ConsumerRegister
from sauna import __version__
my_consumer = ConsumerRegister('HTTPServer')
class StoppableHTTPServer(HTTPServer):
"""HTTPServer that stops itself when receiving a threading.Event"""
def __init__(self, must_stop, *args, **kwargs):
super().__init__(*args, **kwargs)
self._must_stop = must_stop
def service_actions(self):
"""Called by the serve_forever() loop.
Check if Sauna requested the server to shutdown.
It cannot call self.shutdown() because the server does not run in
a separated thread.
"""
if self._must_stop.is_set():
self._BaseServer__shutdown_request = True
@my_consumer.consumer()
class HTTPServerConsumer(AsyncConsumer):
def __init__(self, config):
super().__init__(config)
import json
import re
from typing import Optional, Set, List
from sauna.consumers.base import BatchQueuedConsumer
from sauna.consumers import ConsumerRegister
my_consumer = ConsumerRegister('HomeAssistantMQTT')
status_to_name = {
0: 'OK',
1: 'Warning',
2: 'Critical',
3: 'Unknown'
}
@my_consumer.consumer()
class HomeAssistantMQTTConsumer(BatchQueuedConsumer):
"""Report checks to Home Assistant via MQTT.
Uses the Home Assistant MQTT discovery functionnality to
dynamically create sensors for each couple of host/check.
The first time Sauna sees a new check for a host, it inserts
a MQTT message on a well known topic that HA monitors with the
configuration for the new sensor. Each host/check gets its own
MQTT topic that HA starts subscribing to.
Afterwards checks are just sent on their own topic.
"""
