def test_etcd_resolve_nonexisting(self):
etcd_client_mock = FakeEtcdClient(self.etcd_content)
uuid = "apache-uuid-1"
resolver = ServiceInstanceNameResolver(etcd_client_mock)
result = resolver.resolve("nonexisting")
assert result is None
def test_etcd_resolve_with_dot_service_ending(self):
etcd_client_mock = FakeEtcdClient(self.etcd_content)
uuid = "apache-uuid-3"
resolver = ServiceInstanceNameResolver(etcd_client_mock)
result = resolver.resolve(uuid)
expected_result = "apache_instance_name_3.service"
assert result == expected_result
def __init__(self, configuration, exit_flag):
self._exit_flag = exit_flag
self._logger = logging.getLogger(__name__)
self._logger.info("Initialized scaling engine with configuration %s",
repr(configuration))
self._services_dictionary = configuration.services_dictionary
self._metrics_receiver = configuration.metrics_receiver
self._metrics = ScalingMetrics()
self._rule_checker = RuleChecker(configuration.scaling_policies,
configuration.services_dictionary)
self._executed_tasks_receiver = configuration.executed_task_receiver
self._scaling_action_sender = configuration.scaling_action_sender
atexit.register(self._on_engine_shutdown)
self._running_services_registry = RunningServicesRegistry(
configuration.services_dictionary)
instance_name_resolver = ServiceInstanceNameResolver(
configuration.etcd_connection)
self._service_instance_name_resolver = CachingServiceInstanceNameResolver(
instance_name_resolver)
