telemetry:
  apollo:
    field_level_instrumentation_sampler: always_off
  exporters:
    tracing:
      experimental_response_trace_id:
        enabled: true
        header_name: apollo-custom-trace-id
      common:
        service_name: router
        # NOT always_off to allow us to test a sampling probability of zero
        sampler: 0.0
        preview_datadog_agent_sampling: false
      datadog:
        enabled: true
        batch_processor:
          scheduled_delay: 100ms
        fixed_span_names: false
        enable_span_mapping: false
  instrumentation:
    spans:
      mode: spec_compliant

