services:
  # Prometheus para métricas
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    ports:
      - "${PROMETHEUS_PORT:-9090}:9090"
    volumes:
      - ./config/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.enable-lifecycle'
      - '--web.enable-admin-api'
      - '--web.enable-remote-write-receiver'
    user: "65534:65534"
    networks:
      - monitoring
    restart: always

  # Loki para logs
  loki:
    image: grafana/loki:latest
    container_name: loki
    ports:
      - "${LOKI_PORT:-3100}:3100"
    volumes:
      - ./config/loki/loki.yaml:/etc/loki/local-config.yaml
      - loki_data:/loki
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - monitoring
    restart: always

  # Tempo para trazas - Solo almacenamiento (Alloy maneja la recolección)
  tempo:
    image: grafana/tempo:latest
    container_name: tempo
    ports:
      - "${TEMPO_PORT:-3200}:3200"  # Solo puerto de consulta, sin endpoints de recepción
    volumes:
      - ./config/tempo/tempo.yaml:/etc/tempo/tempo.yaml
      - tempo_data:/var/tempo
    command:
      - -config.file=/etc/tempo/tempo.yaml
    networks:
      - monitoring
    restart: always

  # Grafana Alloy para colección de datos - ÚNICA PUERTA DE ENTRADA
  alloy:
    image: grafana/alloy:latest
    container_name: alloy
    ports:
      - "${ALLOY_UI_PORT:-12345}:12345"  # Puerto para la UI de Alloy
      # Puertos para métricas
      - "${ALLOY_METRICS_PORT:-9999}:9999"    # HTTP receiver para métricas externas
      # Puertos para logs
      - "${ALLOY_LOGS_HTTP_PORT:-3101}:3101"    # HTTP receiver para logs externos
      - "${ALLOY_SYSLOG_PORT:-1514}:1514"    # Syslog TCP receiver
      # Puertos para trazas - OpenTelemetry
      - "${ALLOY_OTLP_GRPC_PORT:-4317}:4317"    # OTLP gRPC
      - "${ALLOY_OTLP_HTTP_PORT:-4318}:4318"    # OTLP HTTP
      # Puertos para trazas - Jaeger compatibility
      - "${ALLOY_JAEGER_GRPC_PORT:-14250}:14250"  # Jaeger gRPC
      - "${ALLOY_JAEGER_HTTP_PORT:-14268}:14268"  # Jaeger HTTP
      - "${ALLOY_JAEGER_COMPACT_PORT:-6831}:6831/udp" # Jaeger compact thrift
      # Puertos para trazas - Zipkin compatibility
      - "${ALLOY_ZIPKIN_PORT:-9411}:9411"    # Zipkin HTTP
    volumes:
      - ./config/alloy/alloy.river:/etc/alloy/config.river
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
      - alloy_data:/var/lib/alloy
    command:
      - run
      - --server.http.listen-addr=0.0.0.0:12345
      - /etc/alloy/config.river
    environment:
      - ALLOY_HOSTNAME=${ALLOY_HOSTNAME:-alloy}
    networks:
      - monitoring
    restart: always
    extra_hosts:
      - "host.docker.internal:host-gateway"
    depends_on:
      - prometheus
      - loki
      - tempo

  # Grafana para visualización
  grafana:
    image: grafana/grafana:latest
    container_name: grafana
    ports:
      - "${GRAFANA_PORT:-3500}:3000"
    environment:
      - GF_SECURITY_ADMIN_USER=${GRAFANA_ADMIN_USER:-admin}
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin123}
      - GF_PATHS_DATA=/var/lib/grafana
      - GF_PATHS_LOGS=/var/log/grafana
      - GF_PATHS_PLUGINS=/var/lib/grafana/plugins
      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
    volumes:
      - ./config/grafana/provisioning:/etc/grafana/provisioning
      - ./config/grafana/dashboards:/var/lib/grafana/dashboards
      - grafana_data:/var/lib/grafana
    user: "472:472"
    networks:
      - monitoring
    restart: always
    depends_on:
      - prometheus
      - loki
      - tempo

  # Node Exporter para métricas del host
  node-exporter:
    image: prom/node-exporter:latest
    container_name: node-exporter
    ports:
      - "${NODE_EXPORTER_PORT:-9100}:9100"
    command:
      - '--path.rootfs=/host'
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/host:ro
    networks:
      - monitoring
    restart: always

  # cAdvisor para métricas detalladas de Docker
  cadvisor:
    image: gcr.io/cadvisor/cadvisor:latest
    container_name: cadvisor
    privileged: true
    ports:
      - "${CADVISOR_PORT:-8081}:8080"
    volumes:
      - /:/rootfs:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /sys:/sys:ro
      - /var/lib/docker/:/var/lib/docker:ro
      - /dev/disk/:/dev/disk:ro
    networks:
      - monitoring
    restart: always

  # Promtail para exportar logs de todos los contenedores hacia Alloy
  promtail:
    image: grafana/promtail:latest
    container_name: promtail
    command: -config.file=/etc/promtail/promtail-config.yml
    volumes:
      - ./config/promtail/promtail-config.yml:/etc/promtail/promtail-config.yml:ro
      - promtail_positions:/var/lib/promtail
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /var/lib/docker/containers:/var/lib/docker/containers:ro
    networks:
      - monitoring
    restart: always
    depends_on:
      - alloy

networks:
  monitoring:
    driver: bridge


volumes:
  prometheus_data:
  loki_data:
  tempo_data:
  alloy_data:
  grafana_data:
  promtail_positions: