def setUp(self):
ServiceRegistry.add_service('test1', '0.0.0.0', 0)
ServiceRegistry.add_service('test2', '0.0.0.0', 0)
ServiceRegistry.add_service('test3', '0.0.0.0', 0)
self.loop = asyncio.new_event_loop()
asyncio.set_event_loop(self.loop)
service = MagicMock()
service.config = {
'magma_services': ['test1', 'test2', 'test3'],
'non_service303_services': ['test2'],
'skip_checkin_if_missing_meta_services': ['test3'],
}
service.mconfig.checkin_interval = 60
service.mconfig.checkin_timeout = 30
service.mconfig_metadata.created_at = 0
service.version = "1.1.1.1"
service.loop = self.loop
# Bind the rpc server to a free port
self._rpc_server = grpc.server(
futures.ThreadPoolExecutor(max_workers=10))
port = self._rpc_server.add_insecure_port('0.0.0.0:0')
# Add the servicer
self._servicer = DummpyStateServer()
self._servicer.add_to_server(self._rpc_server)
self._rpc_server.start()
# Create a rpc stub
self.channel = grpc.insecure_channel('0.0.0.0:{}'.format(port))
# Set up and start state reporting loop
self.service_poller = unittest.mock.Mock()
self.service_poller.service_info = unittest.mock.Mock()
self.service_poller.service_info.return_value = {}
# Mock out GatewayStatusFactory
gateway_status_factory = \
GatewayStatusFactory(service, self.service_poller, None)
# Mock _system_status since it tried to read from /data/flash
gateway_status_factory._system_status = unittest.mock.Mock()
gateway_status_factory._system_status.return_value = \
self.default_system_status()
grpc_client_manager = GRPCClientManager(
service_name="state",
service_stub=StateServiceStub,
max_client_reuse=60,
)
# Mock out bootstrap manager
bootstrap_manager = unittest.mock.Mock()
bootstrap_manager.schedule_bootstrap_now = unittest.mock.Mock()
bootstrap_manager.schedule_bootstrap_now.return_value = None
self.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,
)
self.state_reporter.FAIL_THRESHOLD = 0
self.state_reporter.start()
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()