Corrected README.md and solved minor bugs with device and context service startup and testing.

# Teraflow SDN controller - [Teraflow H2020 project](https://teraflow-h2020.eu/) - Secured autonomic traffic management for a Tera of SDN Flows

# Teraflow SDN controller

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[Teraflow H2020 project](https://teraflow-h2020.eu/) - Secured autonomic traffic management for a Tera of SDN Flows

Branch "master" : [![pipeline status](https://gitlab.com/teraflow-h2020/controller/badges/master/pipeline.svg)](https://gitlab.com/teraflow-h2020/controller/-/commits/master) [![coverage report](https://gitlab.com/teraflow-h2020/controller/badges/master/coverage.svg)](https://gitlab.com/teraflow-h2020/controller/-/commits/master)

    logging.basicConfig(level=log_level)

    logger = logging.getLogger(__name__)

    logger.warning('env: {}'.format(str(os.environ)))

    signal.signal(signal.SIGINT,  signal_handler)

    signal.signal(signal.SIGTERM, signal_handler)

from context.client.ContextClient import ContextClient

from context.proto.context_pb2 import Empty

from context.service.ContextService import ContextService

from context.Config import SERVICE_PORT, MAX_WORKERS, GRACE_PERIOD

from context.Config import GRPC_SERVICE_PORT, GRPC_MAX_WORKERS, GRPC_GRACE_PERIOD

from context.tests.tools.ValidateTopology import validate_topology_dict

LOGGER = logging.getLogger(__name__)

@pytest.fixture(scope='session')

def local_context_service():

    database = get_database(engine=DatabaseEngineEnum.INMEMORY, filepath='data/topo_nsfnet.json')

    _service = ContextService(database, port=SERVICE_PORT, max_workers=MAX_WORKERS, grace_period=GRACE_PERIOD)

    _service = ContextService(

        database, port=GRPC_SERVICE_PORT, max_workers=GRPC_MAX_WORKERS, grace_period=GRPC_GRACE_PERIOD)

    _service.start()

    yield _service

    _service.stop()

@pytest.fixture(scope='session')

def local_context_client(local_context_service):

    return ContextClient(address='127.0.0.1', port=SERVICE_PORT)

    return ContextClient(address='127.0.0.1', port=GRPC_SERVICE_PORT)

def test_local_get_topology(local_context_client):

    response = local_context_client.GetTopology(Empty())

    logging.basicConfig(level=log_level)

    logger = logging.getLogger(__name__)

    logger.warning('env: {}'.format(str(os.environ)))

    signal.signal(signal.SIGINT,  signal_handler)

    signal.signal(signal.SIGTERM, signal_handler)