'Deletes a service
:param  cluster: The target cluster
:type   cluster: :class:`libcloud.container.base.ContainerCluster`
:param  service_arn: The service ARN to destroy
:type   service_arn: ``str``'

def ex_destroy_service(self, service_arn):

    request = {'service': service_arn}
    response = self.connection.request(ROOT, method='POST', data=json.dumps(request), headers=self._get_headers('DeleteService')).object
    return response['service']
