def start_endpoint(
name: str = typer.Argument("default",
autocompletion=complete_endpoint_name),
endpoint_uuid: str = typer.Option(
None, help="The UUID for the endpoint to register with")):
"""Start an endpoint
This function will do:
1. Connect to the broker service, and register itself
2. Get connection info from broker service
3. Start the interchange as a daemon
| Broker service |
| -----2----> Forwarder |
| /register <-----3----+ ^ |
+-----^-----------------------+-------------+
| | |
1 4 6
| v |
+-----+-----+-----+ v
| Start |---5---> Interchange
| Endpoint | daemon
+-----------------+
Parameters
----------
name : str
endpoint_uuid : str
"""
endpoint_dir = os.path.join(State.FUNCX_DIR, name)
endpoint_json = os.path.join(endpoint_dir, 'endpoint.json')
# TODO : we need to load the config ? maybe not. This needs testing
endpoint_config = SourceFileLoader(
'config', os.path.join(endpoint_dir,
FUNCX_CONFIG_FILE_NAME)).load_module()
funcx_client = FuncXClient(
funcx_service_address=endpoint_config.config.funcx_service_address)
if not os.path.exists(endpoint_dir):
print('''Endpoint {0} is not configured!
1. Please create a configuration template with:
$ funcx-endpoint configure {0}
2. Update configuration
3. Start the endpoint.
'''.format(name))
return
# If pervious registration info exists, use that
if os.path.exists(endpoint_json):
with open(endpoint_json, 'r') as fp:
logger.debug(
"Connection info loaded from prior registration record")
reg_info = json.load(fp)
endpoint_uuid = reg_info['endpoint_id']
elif not endpoint_uuid:
endpoint_uuid = str(uuid.uuid4())
logger.info(f"Starting endpoint with uuid: {endpoint_uuid}")
# Create a daemon context
stdout = open(os.path.join(endpoint_dir, './interchange.stdout'), 'w+')
stderr = open(os.path.join(endpoint_dir, './interchange.stderr'), 'w+')
try:
context = daemon.DaemonContext(
working_directory=endpoint_dir,
umask=0o002,
# lockfile.FileLock(
pidfile=daemon.pidfile.PIDLockFile(
os.path.join(endpoint_dir, 'daemon.pid')),
stdout=stdout,
stderr=stderr,
)
except Exception as e:
logger.critical(
"Caught exception while trying to setup endpoint context dirs")
logger.critical("Exception : ", e)
check_pidfile(context.pidfile.path, "funcx-endpoint", name)
with context:
while True:
# Register the endpoint
logger.debug("Registering endpoint")
if State.FUNCX_CONFIG.get('broker_test', False) is True:
logger.warning(
"**************** BROKER State.DEBUG MODE *******************"
)
reg_info = register_with_hub(
endpoint_uuid, endpoint_dir,
State.FUNCX_CONFIG['broker_address'],
State.FUNCX_CONFIG['redis_host'])
else:
metadata = None
try:
metadata = endpoint_config.meta
except AttributeError:
logger.info("Did not find associated endpoint metadata")
reg_info = register_endpoint(funcx_client, name, endpoint_uuid,
metadata, endpoint_dir)
logger.info("Endpoint registered with UUID: {}".format(
reg_info['endpoint_id']))
# Configure the parameters for the interchange
optionals = {}
optionals['client_address'] = reg_info['address']
optionals['client_ports'] = reg_info['client_ports'].split(',')
if 'endpoint_address' in State.FUNCX_CONFIG:
optionals['interchange_address'] = State.FUNCX_CONFIG[
'endpoint_address']
optionals['logdir'] = endpoint_dir
if State.DEBUG:
optionals['logging_level'] = logging.DEBUG
ic = Interchange(endpoint_config.config,
endpoint_id=endpoint_uuid,
**optionals)
ic.start()
ic.stop()
logger.critical("Interchange terminated.")
time.sleep(10)
stdout.close()
stderr.close()
logger.critical(f"Shutting down endpoint {endpoint_uuid}")
def start_endpoint(args, global_config=None):
"""Start an endpoint
This function will do:
1. Connect to the broker service, and register itself
2. Get connection info from broker service
3. Start the interchange as a daemon
| Broker service |
| -----2----> Forwarder |
| /register <-----3----+ ^ |
+-----^-----------------------+-------------+
| | |
1 4 6
| v |
+-----+-----+-----+ v
| Start |---5---> Interchange
| Endpoint | daemon
+-----------------+
Parameters
----------
args : args object
Args object from the arg parsing
global_config : dict
Global config dict
"""
funcx_client = FuncXClient()
endpoint_dir = os.path.join(args.config_dir, args.name)
endpoint_json = os.path.join(endpoint_dir, 'endpoint.json')
if not os.path.exists(endpoint_dir):
print('''Endpoint {0} is not configured!
1. Please create a configuration template with:
$ funcx-endpoint configure {0}
2. Update configuration
3. Start the endpoint.
'''.format(args.name))
return
# If pervious registration info exists, use that
if os.path.exists(endpoint_json):
with open(endpoint_json, 'r') as fp:
logger.debug(
"Connection info loaded from prior registration record")
reg_info = json.load(fp)
endpoint_uuid = reg_info['endpoint_id']
elif args.endpoint_uuid:
endpoint_uuid = args.endpoint_uuid
else:
endpoint_uuid = str(uuid.uuid4())
print(f"Starting endpoint with uuid: {endpoint_uuid}")
logger.debug(f"Starting endpoint with uuid: {endpoint_uuid}")
# Create a daemon context
stdout = open(os.path.join(endpoint_dir, './interchange.stdout'), 'w+')
stderr = open(os.path.join(endpoint_dir, './interchange.stderr'), 'w+')
try:
context = daemon.DaemonContext(
working_directory=endpoint_dir,
umask=0o002,
# lockfile.FileLock(
pidfile=daemon.pidfile.PIDLockFile(
os.path.join(endpoint_dir, 'daemon.pid')),
stdout=stdout,
stderr=stderr,
)
except Exception as e:
logger.critical(
"Caught exception while trying to setup endpoint context dirs")
logger.critical("Exception : ", e)
check_pidfile(context.pidfile.path, "funcx-endpoint", args.name)
# TODO : we need to load the config ? maybe not. This needs testing
endpoint_config = importlib.machinery.SourceFileLoader(
'config', os.path.join(endpoint_dir, 'config.py')).load_module()
with context:
while True:
# Register the endpoint
logger.debug("Registering endpoint")
if global_config.get('broker_test', False) is True:
logger.warning(
"**************** BROKER DEBUG MODE *******************")
reg_info = register_with_hub(global_config['broker_address'],
global_config['redis_host'])
else:
reg_info = register_endpoint(funcx_client, args.name,
endpoint_uuid, endpoint_dir)
logger.info("Endpoint registered with UUID: {}".format(
reg_info['endpoint_id']))
# Configure the parameters for the interchange
optionals = {}
optionals['client_address'] = reg_info['address']
optionals['client_ports'] = reg_info['client_ports'].split(',')
if 'endpoint_address' in global_config:
optionals['interchange_address'] = global_config[
'endpoint_address']
optionals['logdir'] = endpoint_dir
# optionals['debug'] = True
if args.debug:
optionals['logging_level'] = logging.DEBUG
ic = Interchange(endpoint_config.config, **optionals)
ic.start()
ic.stop()
logger.critical("Interchange terminated.")
time.sleep(10)
stdout.close()
stderr.close()
logger.critical(f"Shutting down endpoint {endpoint_uuid}")