PingWatch 网络设备离线监控系统

- FastAPI 后端 + Vue 3 前端
- Docker Compose 一键部署
- Casdoor OAuth 认证集成
- LogHive 集中式日志
- 设备批量 CSV 导入/导出
- WebSocket 实时状态推送
- 企业微信告警通知
- fping 高性能并发 Ping 检测

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/app/models/device.py

@@ -0,0 +1,46 @@
+import enum
+from datetime import datetime
+from sqlalchemy import Column, Integer, String, Float, Boolean, DateTime, Enum, Text
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+class DeviceTypeEnum(str, enum.Enum):
+    server = "server"         # 服务器
+    olt = "olt"               # OLT
+    switch = "switch"         # 交换机
+    firewall = "firewall"     # 防火墙
+    other = "other"           # 其他
+
+
+class Device(Base):
+    __tablename__ = "devices"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    name = Column(String(128), nullable=False, comment="设备名称")
+    ip = Column(String(45), nullable=False, index=True, comment="IP 地址")
+    device_type = Column(Enum(DeviceTypeEnum), nullable=False, default=DeviceTypeEnum.other, comment="设备类型")
+    location = Column(String(256), default="", comment="物理位置/地址")
+    project_name = Column(String(256), default="", comment="所属项目")
+    tags = Column(String(512), default="", comment="标签，逗号分隔")
+
+    # Ping 设置
+    ping_interval = Column(Integer, default=30, comment="ping 间隔（秒）")
+    alert_threshold = Column(Integer, default=5, comment="连续失败次数判离线")
+    is_enabled = Column(Boolean, default=True, comment="是否启用监控")
+
+    # 运行状态
+    current_status = Column(String(16), default="unknown", comment="当前状态: online/offline/unknown")
+    consecutive_failures = Column(Integer, default=0, comment="当前连续失败次数")
+    last_ping_time = Column(DateTime, nullable=True, comment="最后一次 ping 时间")
+    last_online_time = Column(DateTime, nullable=True, comment="最后一次在线时间")
+    last_offline_time = Column(DateTime, nullable=True, comment="最后一次离线时间")
+
+    created_at = Column(DateTime, default=datetime.now, comment="创建时间")
+    updated_at = Column(DateTime, default=datetime.now, onupdate=datetime.now, comment="更新时间")
+
+    def __repr__(self):
+        return f"<Device(id={self.id}, name={self.name}, ip={self.ip})>"