def get_unexpected_restart_summary(self):
service = MagmaService('magmad', mconfigs_pb2.MagmaD())
service_poller = ServicePoller(service.loop, service.config)
service_poller.start()
asyncio.set_event_loop(service.loop)
# noinspection PyProtectedMember
# pylint: disable=protected-access
async def fetch_info():
restart_frequencies = {}
await service_poller._get_service_info()
for service_name in service_poller.service_info.keys():
restarts = int(
UNEXPECTED_SERVICE_RESTARTS
.labels(service_name=service_name)
._value.get(),
)
restart_frequencies[service_name] = RestartFrequency(
count=restarts,
time_interval='',
)
return restart_frequencies
return service.loop.run_until_complete(fetch_info())
def setUp(self):
ServiceRegistry.add_service('test1', '0.0.0.0', 0)
ServiceRegistry.add_service('test2', '0.0.0.0', 0)
config = {
'magma_services': ['test1', 'test2'],
'non_service303_services': ['test2']
}
self._loop = asyncio.new_event_loop()
self._service_poller = ServicePoller(self._loop, config)
class ServicePollerTests(unittest.TestCase):
"""
Tests for the ServicePoller
"""
def setUp(self):
ServiceRegistry.add_service('test1', '0.0.0.0', 0)
ServiceRegistry.add_service('test2', '0.0.0.0', 0)
config = {
'magma_services': ['test1', 'test2'],
'non_service303_services': ['test2']
}
self._loop = asyncio.new_event_loop()
self._service_poller = ServicePoller(self._loop, config)
@unittest.mock.patch('magma.magmad.service_poller.Service303Stub')
@unittest.mock.patch('magma.configuration.service_configs')
def test_poll(self, _service_configs_mock, service303_mock):
"""
Test if the query to Service303 succeeds.
"""
# Mock out GetServiceInfo.future
mock = unittest.mock.Mock()
mock.GetServiceInfo.future.side_effect = [unittest.mock.Mock()]
service303_mock.side_effect = [mock]
self._service_poller.start()
mock.GetServiceInfo.future.assert_called_once_with(
Void(), self._service_poller.GET_STATUS_TIMEOUT)
# pylint: disable=protected-access
self._service_poller._get_service_info_done('test1', MockFuture(False))
@unittest.mock.patch('magma.magmad.service_poller.Service303Stub')
@unittest.mock.patch('magma.configuration.service_configs')
def test_poll_exception(self, _service_configs_mock, service303_mock):
"""
Test if the query to Service303 fails and handled gracefully.
"""
# Mock out GetServiceInfo.future
mock = unittest.mock.Mock()
mock.GetServiceInfo.future.side_effect = [unittest.mock.Mock()]
service303_mock.side_effect = [mock]
self._service_poller.start()
mock.GetServiceInfo.future.assert_called_once_with(
Void(), self._service_poller.GET_STATUS_TIMEOUT)
# pylint: disable=protected-access
self._service_poller._get_service_info_done('test1', MockFuture(True))
def main():
"""
Main magmad function
"""
service = MagmaService('magmad', mconfigs_pb2.MagmaD())
# Optionally pipe errors to Sentry
sentry_init(service_name=service.name)
logging.info('Starting magmad for UUID: %s', snowflake.make_snowflake())
# Create service manager
services = service.config.get('magma_services')
init_system = service.config.get('init_system', 'systemd')
registered_dynamic_services = service.config.get(
'registered_dynamic_services',
[],
)
enabled_dynamic_services = []
if service.mconfig is not None:
enabled_dynamic_services = service.mconfig.dynamic_services
# Poll the services' Service303 interface
service_poller = ServicePoller(
service.loop,
service.config,
enabled_dynamic_services,
)
service_poller.start()
service_manager = ServiceManager(
services,
init_system,
service_poller,
registered_dynamic_services,
enabled_dynamic_services,
)
# Get metrics service config
metrics_config = service.config.get('metricsd')
metrics_services = metrics_config['services']
collect_interval = metrics_config['collect_interval']
sync_interval = metrics_config['sync_interval']
grpc_timeout = metrics_config['grpc_timeout']
grpc_msg_size = metrics_config.get('max_grpc_msg_size_mb', 4)
metrics_post_processor_fn = metrics_config.get('post_processing_fn')
metric_scrape_targets = [
ScrapeTarget(t['url'], t['name'], t['interval'])
for t in metrics_config.get('metric_scrape_targets', [])
]
# Create local metrics collector
metrics_collector = MetricsCollector(
services=metrics_services,
collect_interval=collect_interval,
sync_interval=sync_interval,
grpc_timeout=grpc_timeout,
grpc_max_msg_size_mb=grpc_msg_size,
loop=service.loop,
post_processing_fn=get_metrics_postprocessor_fn(
metrics_post_processor_fn, ),
scrape_targets=metric_scrape_targets,
)
# Poll and sync the metrics collector loops
metrics_collector.run()
# Start a background thread to stream updates from the cloud
stream_client = None
if service.config.get('enable_config_streamer', False):
stream_client = StreamerClient(
{
CONFIG_STREAM_NAME:
ConfigManager(
services,
service_manager,
service,
MconfigManagerImpl(),
),
},
service.loop,
)
# Create sync rpc client with a heartbeat of 30 seconds (timeout = 60s)
sync_rpc_client = None
if service.config.get('enable_sync_rpc', False):
sync_rpc_client = SyncRPCClient(
service.loop,
30,
service.config.get('print_grpc_payload', False),
)
first_time_bootstrap = True
# This is called when bootstrap succeeds and when _bootstrap_check is
# invoked but bootstrap is not needed. If it's invoked right after certs
# are generated, certs_generated is true, control_proxy will restart.
async def bootstrap_success_cb(certs_generated: bool):
nonlocal first_time_bootstrap
if first_time_bootstrap:
if stream_client:
stream_client.start()
if sync_rpc_client:
sync_rpc_client.start()
first_time_bootstrap = False
if certs_generated:
svcs_to_restart = []
if 'control_proxy' in services:
svcs_to_restart.append('control_proxy')
# fluent-bit caches TLS client certs in memory, so we need to
# restart it whenever the certs change
fresh_mconfig = get_mconfig_manager().load_service_mconfig(
'magmad',
mconfigs_pb2.MagmaD(),
)
dynamic_svcs = fresh_mconfig.dynamic_services or []
if 'td-agent-bit' in dynamic_svcs:
svcs_to_restart.append('td-agent-bit')
await service_manager.restart_services(services=svcs_to_restart)
# Create bootstrap manager
bootstrap_manager = BootstrapManager(service, bootstrap_success_cb)
# Initialize kernel version poller if it is enabled
kernel_version_poller = None
if service.config.get('enable_kernel_version_checking', False):
kernel_version_poller = KernelVersionsPoller(service)
kernel_version_poller.start()
# gateway status generator to bundle various information about this
# gateway into an object.
gateway_status_factory = GatewayStatusFactory(
service=service,
service_poller=service_poller,
kernel_version_poller=kernel_version_poller,
)
# _grpc_client_manager to manage grpc client recycling
grpc_client_manager = GRPCClientManager(
service_name="state",
service_stub=StateServiceStub,
max_client_reuse=60,
)
# Initialize StateReporter
state_reporter = StateReporter(
config=service.config,
mconfig=service.mconfig,
loop=service.loop,
bootstrap_manager=bootstrap_manager,
gw_status_factory=gateway_status_factory,
grpc_client_manager=grpc_client_manager,
)
# Initialize ServiceHealthWatchdog
service_health_watchdog = ServiceHealthWatchdog(
config=service.config,
loop=service.loop,
service_poller=service_poller,
service_manager=service_manager,
)
# Start _bootstrap_manager
bootstrap_manager.start_bootstrap_manager()
# Start all services when magmad comes up
service.loop.create_task(service_manager.start_services())
# Start state reporting loop
state_reporter.start()
# Start service timeout health check loop
service_health_watchdog.start()
# Start upgrade manager loop
if service.config.get('enable_upgrade_manager', False):
upgrader = _get_upgrader_impl(service)
service.loop.create_task(start_upgrade_loop(service, upgrader))
# Start network health metric collection
if service.config.get('enable_network_monitor', False):
service.loop.create_task(metrics_collection_loop(service.config))
# Create generic command executor
command_executor = None
if service.config.get('generic_command_config', None):
command_executor = get_command_executor_impl(service)
# Start loop to monitor unattended upgrade status
service.loop.create_task(monitor_unattended_upgrade_status())
# Add all servicers to the server
magmad_servicer = MagmadRpcServicer(
service,
services,
service_manager,
get_mconfig_manager(),
command_executor,
service.loop,
service.config.get('print_grpc_payload', False),
)
magmad_servicer.add_to_server(service.rpc_server)
if SDWatchdog.has_notify():
# Create systemd watchdog
sdwatchdog = SDWatchdog(
tasks=[bootstrap_manager, state_reporter],
update_status=True,
)
# Start watchdog loop
service.loop.create_task(sdwatchdog.run())
# Run the service loop
service.run()
# Cleanup the service
service.close()
