services:
  prometheus:
    image: prom/prometheus:latest
    volumes:
      - ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    restart: unless-stopped

  node-exporter:
    image: prom/node-exporter:latest
    restart: unless-stopped
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
    command:
      - "--path.procfs=/host/proc"
      - "--path.rootfs=/rootfs"
      - "--path.sysfs=/host/sys"

  loki:
    image: grafana/loki:latest
    restart: unless-stopped
    volumes:
      - loki_data:/loki

  promtail:
    image: grafana/promtail:latest
    restart: unless-stopped
    volumes:
      - ./promtail/promtail-config.yml:/etc/promtail/config.yml
      - /var/log:/var/log

  grafana:
    image: grafana/grafana:latest
    restart: unless-stopped
    volumes:
      - grafana_data:/var/lib/grafana
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_PASSWORD}
      - GF_USERS_ALLOW_SIGN_UP=false
    ports:
      - "3000:3000" # For local testing; remove in production with nginx
    networks:
      - default
      - web

volumes:
  prometheus_data:
  loki_data:
  grafana_data:

networks:
  default:
  web:
    external: true