# Grafana Tempo - Monolithic mode (single binary)
# Chart: grafana/tempo
# Recebe traces do OpenTelemetry Collector e armazena localmente

# Single replica - minimal for workshop on Hetzner CAX11
replicas: 1

tempo:
  # Storage config - local filesystem
  storage:
    trace:
      backend: local
      local:
        path: /var/tempo/traces
      wal:
        path: /var/tempo/wal

  # Retention (maps to compactor.compaction.block_retention in tempo config)
  retention: 168h  # 7 days

  # Receive traces via OTLP only (disable other receivers)
  receivers:
    otlp:
      protocols:
        grpc:
          endpoint: "0.0.0.0:4317"
        http:
          endpoint: "0.0.0.0:4318"

  # Metrics generator - generates span metrics for Victoria Metrics
  metricsGenerator:
    enabled: true
    remoteWriteUrl: "http://vmsingle-monitoring-victoria-metrics-k8s-stack.monitoring:8429/api/v1/write"
    processor:
      service_graphs:
        dimensions:
          - http.method
          - http.route
        enable_client_server_prefix: true
        max_items: 10000
      span_metrics:
        dimensions:
          - http.method
          - http.route
          - http.status_code
        enable_target_info: true

  # Resources for tempo container (under tempo key for this chart)
  resources:
    requests:
      cpu: 100m
      memory: 256Mi
    limits:
      cpu: 500m
      memory: 512Mi

# Persistence via Hetzner CSI
persistence:
  enabled: true
  size: 10Gi
  storageClassName: hcloud-volumes