Hi, when I use the latest version I get an error when calling a Lambda. 

I get this error:
Lambda process returned error status code: 1. Output:
awssvc           | 2019-05-10T22:23:19.822966331Z Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.29/containers/create: dial unix /var/run/docker.sock: connect: permission denied
awssvc           | 2019-05-10T22:23:19.822969899Z must specify at least one container source

I'am using the Lambda in a docker. 

You can find my setup here: https://github.com/blaart/stream-my-changes
After forcing to use the 0.9.1 version all works fine again.  

self.quiet = quiet
        if self.httpd:
            self.httpd.server_close()
            self.server_stopped = True
    @classmethod
    def create_ssl_cert(cls, random=True):
        return generate_ssl_cert(SERVER_CERT_PEM_FILE, random=random)
    @classmethod
    def get_flask_ssl_context(cls):
        if USE_SSL:
            combined_file, cert_file_name, key_file_name = cls.create_ssl_cert()
            return (cert_file_name, key_file_name)
        return None
def serve_flask_app(app, port, quiet=True, host=None, cors=True):
    if cors:
        CORS(app)
    if quiet:
        log = logging.getLogger('werkzeug')
        log.setLevel(logging.ERROR)
    if not host:
        host = '0.0.0.0'
    ssl_context = GenericProxy.get_flask_ssl_context()
    app.run(port=int(port), threaded=True, host=host, ssl_context=ssl_context)
    return app