'Return a container CDN URL.
:param container: Container instance
:type  container: :class:`Container`
:param check: Indicates if the path\'s existence must be checked
:type check: ``bool``
:return: A CDN URL for this container.
:rtype: ``str``'

def get_container_cdn_url(self, container, check=False):

    path = os.path.join(self.base_path, container.name)
    if (check and (not os.path.isdir(path))):
        raise ContainerDoesNotExistError(value=None, driver=self, container_name=container.name)
    return path
