After cloning the repo and running: `docker build -t localstack:latest .`
I can see the following errors:

```
Starting mock Lambda service (http port 4574)...
ERROR: Error forwarding request: HTTPConnectionPool(host='127.0.0.1', port=4564): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f4c7b4e7c10>: Failed to establish a new connection: [Errno 111] Connection refused',)) Traceback (most recent call last):
  File "/opt/code/localstack/localstack/services/generic_proxy.py", line 216, in forward
    headers=forward_headers, stream=True)
  File "/opt/code/localstack/.venv/lib/python2.7/site-packages/requests/api.py", line 116, in post
    return request('post', url, data=data, json=json, **kwargs)
  File "/opt/code/localstack/.venv/lib/python2.7/site-packages/requests/api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "/opt/code/localstack/.venv/lib/python2.7/site-packages/requests/sessions.py", line 524, in request
    resp = self.send(prep, **send_kwargs)
  File "/opt/code/localstack/.venv/lib/python2.7/site-packages/requests/sessions.py", line 637, in send
    r = adapter.send(request, **kwargs)
  File "/opt/code/localstack/.venv/lib/python2.7/site-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=4564): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f4c7b4e7c10>: Failed to establish a new connection: [Errno 111] Connection refused',))
```

I see the same thing when running `localstack start --docker` which is what I originally tried as I would like to use localstack for development purposes in an existing stack.

MacOS Mojave 10.14
Docker for Mac: 18.06.1-ce-mac73 (26764)
return start_moto_server('redshift', port, name='Redshift', asynchronous=asynchronous)
def start_route53(port=PORT_ROUTE53, asynchronous=False):
    return start_moto_server('route53', port, name='Route53', asynchronous=asynchronous)
def start_ses(port=PORT_SES, asynchronous=False):
    return start_moto_server('ses', port, name='SES', asynchronous=asynchronous)
def start_elasticsearch_service(port=PORT_ES, asynchronous=False):
    return start_local_api('ES', port, method=es_api.serve, asynchronous=asynchronous)
def start_firehose(port=PORT_FIREHOSE, asynchronous=False):
    return start_local_api('Firehose', port, method=firehose_api.serve, asynchronous=asynchronous)
def start_dynamodbstreams(port=PORT_DYNAMODBSTREAMS, asynchronous=False):
    return start_local_api('DynamoDB Streams', port, method=dynamodbstreams_api.serve, asynchronous=asynchronous)
def start_lambda(port=PORT_LAMBDA, asynchronous=False):
    return start_local_api('Lambda', port, method=lambda_api.serve, asynchronous=asynchronous)
def start_ssm(port=PORT_SSM, asynchronous=False):
    return start_moto_server('ssm', port, name='SSM', asynchronous=asynchronous)
def start_secretsmanager(port=PORT_SECRETSMANAGER, asynchronous=False):
    return start_moto_server('secretsmanager', port, name='Secrets Manager', asynchronous=asynchronous)
def setup_logging():
    
    log_level = logging.DEBUG if is_debug() else logging.INFO
    logging.basicConfig(level=log_level, format=LOG_FORMAT, datefmt=LOG_DATE_FORMAT)
    
    warnings.filterwarnings('ignore')
    logging.captureWarnings(True)
    logging.getLogger('urllib3').setLevel(logging.WARNING)
    logging.getLogger('requests').setLevel(logging.WARNING)
    logging.getLogger('botocore').setLevel(logging.ERROR)
    logging.getLogger('elasticsearch').setLevel(logging.ERROR)
def get_service_protocol():