完善中央与边缘部署、远程写入与监控文档

- 增加中央与边缘完整配置和部署脚本
- 引入 VictoriaMetrics 数据源与 remote_write 故障排查说明
- 新增 edge-agent 配置脚本、ONVIF 自建 exporter 与 ping 监控示例

Co-authored-by: Cursor <cursoragent@cursor.com>

edge-agent/docker-compose.yml

@@ -0,0 +1,70 @@
+services:
+  # ========== 边缘必选 ==========
+  # 1. 边缘 Prometheus：抓取 + remote_write 推到中央 VictoriaMetrics
+  prometheus-edge:
+    image: prom/prometheus:latest
+    container_name: prometheus-edge
+    restart: unless-stopped
+    environment:
+      - CENTRAL_SERVER_HOST=${CENTRAL_SERVER_HOST:-192.168.1.10}
+      - CENTRAL_SERVER_PORT=${CENTRAL_SERVER_PORT:-8428}
+    volumes:
+      - prometheus-edge-data:/prometheus
+      - ./prometheus-edge/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - ./config/onvif-targets.json:/etc/prometheus/onvif-targets.json:ro # 挂载静态设备列表
+      - ./config/ping-targets.json:/etc/prometheus/ping-targets.json:ro # 挂载Ping目标列表
+    mem_limit: "256m"
+    cpus: "2.0"
+    ports:
+      - "9092:9090" # 改为9092避免与中央服务器冲突
+    # 本机同机部署时，容器内通过 host.docker.internal 访问宿主机中央服务
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.retention.time=1h'
+      - '--web.enable-lifecycle' # 启用配置重载API
+    networks:
+      - monitoring_net
+
+  # ========== 可选容器（按需启用）==========
+  # 2. ONVIF Exporter（可选，使用本项目自建）
+  # 启用：docker compose --profile onvif up -d --build（会构建 edge-agent/onvif-exporter 并启动）
+  # 配置文件：config/onvif-targets.json（与 targets.csv 中 onvif 行一致，由 update-configs.sh 生成）
+  onvif-exporter:
+    profiles:
+      - onvif
+    image: onvif-exporter:local
+    build:
+      context: ./onvif-exporter
+      dockerfile: Dockerfile
+    container_name: onvif-exporter
+    restart: unless-stopped
+    environment:
+      - EXPORTER_PORT=9600
+      - TARGETS_FILE=/config/targets.json
+    volumes:
+      - ./config/onvif-targets.json:/config/targets.json:ro
+    mem_limit: "128m"
+    cpus: "1.5"
+    networks:
+      - monitoring_net
+
+  # 3. Blackbox Exporter（必选：网络 Ping 探测）
+  blackbox-exporter:
+    image: prom/blackbox-exporter:latest
+    container_name: blackbox-exporter
+    restart: unless-stopped
+    volumes:
+      - ./blackbox/config.yml:/etc/blackbox_exporter/config.yml:ro
+    mem_limit: "64m"
+    cpus: "0.5"
+    networks:
+      - monitoring_net
+
+networks:
+  monitoring_net:
+    driver: bridge
+
+volumes:
+  prometheus-edge-data: