first commit

app/models/audit_log.py

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+from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Text, Enum
+from sqlalchemy.sql import func
+from app.database import Base
+import enum
+
+class AuditAction(str, enum.Enum):
+    LOGIN = "login"
+    LOGOUT = "logout"
+    VM_CONNECT = "vm_connect"
+    VM_DISCONNECT = "vm_disconnect"
+    VM_START = "vm_start"
+    VM_STOP = "vm_stop"
+    VM_REBOOT = "vm_reboot"
+    TUNNEL_CREATE = "tunnel_create"
+    TUNNEL_CLOSE = "tunnel_close"
+    USER_CREATE = "user_create"
+    USER_UPDATE = "user_update"
+    USER_DELETE = "user_delete"
+    ACCESS_DENIED = "access_denied"
+
+class AuditLog(Base):
+    """감사 로그 - 모든 중요 작업 기록"""
+    __tablename__ = "audit_logs"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"))
+    username = Column(String(50))  # 비정규화 (삭제된 사용자 추적)
+    
+    action = Column(Enum(AuditAction), nullable=False, index=True)
+    resource_type = Column(String(50))  # "vm", "user", "tunnel"
+    resource_id = Column(String(100))  # VM ID, User ID 등
+    
+    ip_address = Column(String(50))
+    user_agent = Column(String(255))
+    
+    details = Column(Text)  # JSON 형태로 추가 정보 저장
+    success = Column(Integer, default=True)
+    error_message = Column(Text)
+    
+    created_at = Column(DateTime(timezone=True), server_default=func.now(), index=True)
+    
+    def __repr__(self):
+        return f"<AuditLog(user='{self.username}', action='{self.action}', created_at='{self.created_at}')>"