'Return a list of running fluentd pods.'

def running_fluentd_pods(self):

    fluentd_pods = self.get_pods_for_component('fluentd')
    running_fluentd_pods = [pod for pod in fluentd_pods if (pod['status']['phase'] == 'Running')]
    if (not running_fluentd_pods):
        raise OpenShiftCheckException('No    Fluentd    pods    were    found    to    be    in    the    "Running"    state.    At    least    one    Fluentd    pod    is    required    in    order    to    perform    this    check.')
    return running_fluentd_pods
