apiVersion: 1

datasources:
  - name: Prometheus
    type: prometheus
    uid: prometheus
    access: proxy
    url: http://prometheus:9090
    isDefault: true
    jsonData:
      httpMethod: POST
      # Turn this on once you have verified your SDK actually attaches exemplars; the
      # framework does not promise it at the pinned OTel version. A derived link that
      # never resolves is worse than no link.
      exemplarTraceIdDestinations: []

  - name: Tempo
    type: tempo
    uid: tempo
    access: proxy
    url: http://tempo:3200
    jsonData:
      tracesToLogsV2:
        datasourceUid: loki
        spanStartTimeShift: -5m
        spanEndTimeShift: 5m
        filterByTraceID: true

  - name: Loki
    type: loki
    uid: loki
    access: proxy
    url: http://loki:3100
    jsonData:
      # The half that makes log-to-trace correlation real: every JSON line already carries
      # trace_id, injected from the active span by bootstrap_logging.
      derivedFields:
        - name: TraceID
          matcherType: label
          matcherRegex: trace_id
          url: "${__value.raw}"
          datasourceUid: tempo