services:
  # ── OpenTelemetry Collector ──
  otel-collector:
    container_name: otel-collector
    image: otel/opentelemetry-collector-contrib:latest
    restart: always
    networks:
      app-shared-net:
        aliases:
          - otel-collector
    ports:
      - '4317:4317'   # OTLP gRPC
      - '4318:4318'   # OTLP HTTP
      - '8889:8889'   # Prometheus metrics
    command:
      - '--config=/etc/otel/config.yml'
    volumes:
      - ../../infra/otel/otel-collector-config.yml:/etc/otel/config.yml:ro

  # ── Jaeger (Tracing Backend + Built-in UI) ──
  jaeger:
    container_name: jaeger
    image: jaegertracing/all-in-one:latest
    restart: always
    networks:
      app-shared-net:
        aliases:
          - jaeger
    ports:
      - '16686:16686'  # Jaeger UI + API
    environment:
      - COLLECTOR_OTLP_ENABLED=true
      - COLLECTOR_ZIPKIN_HOST_PORT=:9411
      - METRICS_STORAGE_TYPE=prometheus
      - PROMETHEUS_SERVER_URL=http://otel-collector:8889
      - LOG_LEVEL=info

  # ── Prometheus (Metrics Backend) ──
  prometheus:
    container_name: prometheus
    image: prom/prometheus:latest
    restart: always
    networks:
      app-shared-net:
        aliases:
          - prometheus
    ports:
      - '9090:9090'
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/etc/prometheus/console_libraries'
      - '--web.console.templates=/etc/prometheus/consoles'
      - '--web.enable-lifecycle'
    volumes:
      - ../../infra/otel/prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - /prometheus
      - /var/run/docker.sock:/var/run/docker.sock:ro
    group_add:
      - '988'

  # ── Node Exporter (Host Metrics: CPU, RAM, Disk) ──
  node-exporter:
    container_name: node-exporter
    image: prom/node-exporter:latest
    restart: always
    networks:
      app-shared-net:
        aliases:
          - node-exporter
    command:
      - '--web.listen-address=0.0.0.0:9100'
      - '--path.rootfs=/host'
      - '--path.procfs=/host/proc'
      - '--path.sysfs=/host/sys'
    volumes:
      - /:/host:ro,rslave

networks:
  app-shared-net:
    name: app-shared-net
    external: true