fluentd/label/default_output/forward.yml

classes:
- service.fluentd.agent.output.forward
- system.fluentd.label.default_output.filter.common
parameters:
  _param:
    fluentd_forward_host: 127.0.0.1
    fluentd_forward_port: 24224
  fluentd:
    agent:
      config:
        label:
          default_output:
            match:
              forward_output:
                host: ${_param:fluentd_forward_host}
                port: ${_param:fluentd_forward_port}