readers:
  - periodic:
      exporter:
        otlp:
          protocol: http/protobuf
          endpoint: 127.0.0.1:4317
          headers:
            "key1": "value1"
            "key2": "value2"
  - pull:
      exporter:
        prometheus:
          host: 127.0.0.1
          port: 8902