services:
  newt:
    image: your/newt:latest
    environment:
      - NEWT_METRICS_PROMETHEUS_ENABLED=false   # wichtig: direkte /metrics-Erfassung aus
      - NEWT_METRICS_OTLP_ENABLED=true          # OTLP an den Collector
      # optional:
      # - NEWT_METRICS_INCLUDE_TUNNEL_ID=false
    # Falls Newt selbst Ports exponiert, hier NICHT 2112 mappen
    # ports: []

  otel-collector:
    image: otel/opentelemetry-collector-contrib:latest
    command: ["--config=/etc/otelcol/config.yaml"]
    volumes:
      - ./examples/otel-collector.yaml:/etc/otelcol/config.yaml:ro
    ports:
      - "4317:4317"   # OTLP gRPC
      - "8889:8889"   # Prometheus Exporter (wird von Prometheus gescraped)

  prometheus:
    image: prom/prometheus:latest
    volumes:
      - ./examples/prometheus.with-collector.yml:/etc/prometheus/prometheus.yml:ro
    ports:
      - "9090:9090"