# OTel Collector config
#
# Receivers:  OTLP (gRPC + HTTP) from backend, ui, runner
# Processors: batch for efficiency, resource detection for host metadata
# Exporters:  Tempo (traces), Prometheus (metrics), Loki (logs)

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317
      http:
        endpoint: 0.0.0.0:4318

processors:
  batch:
    timeout: 5s
    send_batch_size: 512

  # Attach host metadata to all telemetry
  resourcedetection:
    detectors: [env, system]
    timeout: 5s

exporters:
  # Traces → Tempo
  otlp/tempo:
    endpoint: tempo:4317
    tls:
      insecure: true

  # Metrics → Prometheus (remote write)
  prometheusremotewrite:
    endpoint: "http://prometheus:9090/api/v1/write"
    tls:
      insecure_skip_verify: true

  # Logs → Loki (via OTLP HTTP endpoint)
  otlphttp/loki:
    endpoint: "http://loki:3100/otlp"
    tls:
      insecure: true

  # Collector self-observability (optional debug)
  debug:
    verbosity: basic

extensions:
  health_check:
    endpoint: 0.0.0.0:13133
  pprof:
    endpoint: 0.0.0.0:1777

service:
  extensions: [health_check, pprof]
  pipelines:
    traces:
      receivers: [otlp]
      processors: [resourcedetection, batch]
      exporters: [otlp/tempo]
    metrics:
      receivers: [otlp]
      processors: [resourcedetection, batch]
      exporters: [prometheusremotewrite]
    logs:
      receivers: [otlp]
      processors: [resourcedetection, batch]
      exporters: [otlphttp/loki]