version: '3.8'

services:
  # Prometheus 监控
  prometheus:
    image: prom/prometheus:latest
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/etc/prometheus/console_libraries'
      - '--web.console.templates=/etc/prometheus/consoles'
      - '--storage.tsdb.retention.time=200h'
      - '--web.enable-lifecycle'
    networks:
      - traefik-public
      - monitoring
    configs:
      - source: prometheus-config
        target: /etc/prometheus/prometheus.yml
    volumes:
      - prometheus-data:/prometheus
    deploy:
      replicas: 1
      labels:
        - traefik.enable=true
        - traefik.http.routers.prometheus.rule=Host(`prometheus.local`)
        - traefik.http.routers.prometheus.entrypoints=web
        - traefik.http.services.prometheus.loadbalancer.server.port=9090
      restart_policy:
        condition: on-failure

  # Grafana 可视化
  grafana:
    image: grafana/grafana:latest
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=admin123
      - GF_USERS_ALLOW_SIGN_UP=false
    networks:
      - traefik-public
      - monitoring
    volumes:
      - grafana-data:/var/lib/grafana
    deploy:
      replicas: 1
      labels:
        - traefik.enable=true
        - traefik.http.routers.grafana.rule=Host(`grafana.local`)
        - traefik.http.routers.grafana.entrypoints=web
        - traefik.http.services.grafana.loadbalancer.server.port=3000
      restart_policy:
        condition: on-failure

  # Node Exporter (系统指标)
  node-exporter:
    image: prom/node-exporter:latest
    command:
      - '--path.procfs=/host/proc'
      - '--path.rootfs=/rootfs'
      - '--path.sysfs=/host/sys'
      - '--collector.filesystem.ignored-mount-points=^/(sys|proc|dev|host|etc)($$|/)'
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
    networks:
      - monitoring
    deploy:
      mode: global
      restart_policy:
        condition: on-failure

  # cAdvisor (容器指标)
  cadvisor:
    image: gcr.io/cadvisor/cadvisor:latest
    volumes:
      - /:/rootfs:ro
      - /var/run:/var/run:rw
      - /sys:/sys:ro
      - /var/lib/docker/:/var/lib/docker:ro
      - /dev/disk/:/dev/disk:ro
    networks:
      - monitoring
    deploy:
      mode: global
      restart_policy:
        condition: on-failure

networks:
  traefik-public:
    external: true
  monitoring:
    driver: overlay

volumes:
  prometheus-data:
  grafana-data:

configs:
  prometheus-config:
    content: |
      global:
        scrape_interval: 15s
        evaluation_interval: 15s

      scrape_configs:
        # Traefik 指标
        - job_name: 'traefik'
          static_configs:
            - targets: ['traefik:8080']
          metrics_path: /metrics

        # Prometheus 自身
        - job_name: 'prometheus'
          static_configs:
            - targets: ['localhost:9090']

        # Node Exporter
        - job_name: 'node-exporter'
          dns_sd_configs:
            - names:
                - 'tasks.node-exporter'
              type: 'A'
              port: 9100

        # cAdvisor
        - job_name: 'cadvisor'
          dns_sd_configs:
            - names:
                - 'tasks.cadvisor'
              type: 'A'
              port: 8080