def run_alerters_manager(manager: AlertersManager) -> None:
while True:
try:
manager.start()
except (pika.exceptions.AMQPConnectionError,
pika.exceptions.AMQPChannelError):
# Error would have already been logged by RabbitMQ logger.
# Since we have to re-initialise just break the loop.
log_and_print(get_stopped_message(manager), manager.logger)
except Exception:
# Close the connection with RabbitMQ if we have an unexpected
# exception, and start again
manager.disconnect_from_rabbit()
log_and_print(get_stopped_message(manager), manager.logger)
log_and_print(
"Restarting {} in {} seconds.".format(manager,
RESTART_SLEEPING_PERIOD),
manager.logger)
time.sleep(RESTART_SLEEPING_PERIOD)
def start_monitor(monitor: Monitor) -> None:
while True:
try:
log_and_print("{} started.".format(monitor), monitor.logger)
monitor.start()
except (pika.exceptions.AMQPConnectionError,
pika.exceptions.AMQPChannelError):
# Error would have already been logged by RabbitMQ logger.
log_and_print(get_stopped_message(monitor), monitor.logger)
except Exception:
# Close the connection with RabbitMQ if we have an unexpected
# exception, and start again
monitor.disconnect_from_rabbit()
log_and_print(get_stopped_message(monitor), monitor.logger)
log_and_print(
"Restarting {} in {} seconds.".format(monitor,
RESTART_SLEEPING_PERIOD),
monitor.logger)
time.sleep(RESTART_SLEEPING_PERIOD)
def start_health_checker_component(component: HealthCheckerComponentType) \
-> None:
while True:
try:
log_and_print("{} started.".format(component), component.logger)
component.start()
except (pika.exceptions.AMQPConnectionError,
pika.exceptions.AMQPChannelError):
# Error would have already been logged by RabbitMQ logger.
log_and_print(get_stopped_message(component), component.logger)
except Exception:
# Close the connection with RabbitMQ if we have an unexpected
# exception, and start again
component.disconnect_from_rabbit()
log_and_print(get_stopped_message(component), component.logger)
log_and_print(
"Restarting {} in {} seconds.".format(component,
RESTART_SLEEPING_PERIOD),
component.logger)
time.sleep(RESTART_SLEEPING_PERIOD)
def run_config_manager() -> None:
config_manager, config_manager_logger = _initialise_config_manager()
while True:
try:
config_manager.start()
except (pika.exceptions.AMQPConnectionError,
pika.exceptions.AMQPChannelError):
# Error would have already been logged by RabbitMQ logger.
# Since we have to re-initialise just break the loop.
log_and_print(get_stopped_message(config_manager),
config_manager_logger)
except Exception:
config_manager.disconnect_from_rabbit()
log_and_print(get_stopped_message(config_manager),
config_manager_logger)
log_and_print(
"Restarting {} in {} seconds.".format(config_manager,
RESTART_SLEEPING_PERIOD),
config_manager_logger)
time.sleep(RESTART_SLEEPING_PERIOD)
def run_health_checker_manager() -> None:
health_checker_manager = _initialise_health_checker_manager()
while True:
try:
log_and_print("{} started.".format(health_checker_manager),
health_checker_manager.logger)
health_checker_manager.start()
except Exception as e:
health_checker_manager.logger.exception(e)
log_and_print(get_stopped_message(health_checker_manager),
health_checker_manager.logger)
log_and_print("Restarting {} in {} seconds.".format(
health_checker_manager, RESTART_SLEEPING_PERIOD),
health_checker_manager.logger)
time.sleep(RESTART_SLEEPING_PERIOD)