version: '3.8'

services:
  # Prometheus
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    restart: unless-stopped
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
      - '--web.console.templates=/usr/share/prometheus/consoles'
      - '--storage.tsdb.retention.time=30d'
    networks:
      - monitoring

  # Node Exporter
  node-exporter:
    image: prom/node-exporter:latest
    container_name: node-exporter
    restart: unless-stopped
    command:
      - '--path.rootfs=/host/rootfs'
      - '--path.procfs=/host/proc'
      - '--path.sysfs=/host/sys'
      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
      - '--collector.diskstats.device-exclude=^(ram|loop|fd|(h|s|v|xv)d[a-z]|nvme\\d+n\\d+p)\\d+$$'
    pid: host
    user: root
    cap_add:
      - SYS_TIME
      - SYS_NICE
    volumes:
      - '/:/host/rootfs:ro,rslave'
      - '/proc:/host/proc:ro'
      - '/sys:/host/sys:ro'
      - '/:/rootfs:ro'
      - '/etc/hostname:/etc/nodename:ro'
    ports:
      - "9100:9100"
    networks:
      - monitoring

  # cAdvisor for container metrics
  cadvisor:
    image: gcr.io/cadvisor/cadvisor:latest
    container_name: cadvisor
    restart: unless-stopped
    volumes:
      - /:/rootfs:ro
      - /var/run:/var/run:ro
      - /sys:/sys:ro
      - /var/lib/docker/:/var/lib/docker:ro
      - /dev/disk/:/dev/disk:ro
    devices:
      - /dev/kmsg:/dev/kmsg
    privileged: true
    ports:
      - "8080:8080"
    networks:
      - monitoring

  # Grafana
  grafana:
    image: grafana/grafana:latest
    container_name: grafana
    restart: unless-stopped
    ports:
      - "3000:3000"
    volumes:
      - grafana_data:/var/lib/grafana
      - ./grafana/provisioning:/etc/grafana/provisioning
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin
      - GF_USERS_ALLOW_SIGN_UP=false
    networks:
      - monitoring

networks:
  monitoring:
    driver: bridge

volumes:
  prometheus_data:
  grafana_data: