添加Proxmox任务控制脚本：监控命令→启动VM→执行任务→汇报→关闭VM
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xiaji
254
proxmox_task/controller.py
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254
proxmox_task/controller.py
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#!/usr/bin/env python3
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"""
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Proxmox虚拟机任务控制器
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监控命令文件，启动VM，执行任务，汇报结果，关闭VM
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"""
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import os
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import time
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import json
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import logging
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import requests
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import subprocess
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import threading
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from datetime import datetime
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from pathlib import Path
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler('/var/log/proxmox_task.log'),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger(__name__)
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class ProxmoxTaskController:
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def __init__(self):
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# 从环境变量读取配置（实际部署中应从安全配置文件或密钥管理系统读取）
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self.proxmox_host = os.getenv('PROXMOX_HOST', 'https://proxmox.example.com:8006')
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self.proxmox_token_id = os.getenv('PROXMOX_TOKEN_ID', 'api-token@pam')
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self.proxmox_token_secret = os.getenv('PROXMOX_TOKEN_SECRET', '')
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self.verify_ssl = os.getenv('PROXMOX_VERIFY_SSL', 'false').lower() == 'true'
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# 命令监控目录
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self.command_dir = Path('/var/task-commands')
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self.command_dir.mkdir(exist_ok=True)
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# 结果目录
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self.result_dir = Path('/var/task-results')
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self.result_dir.mkdir(exist_ok=True)
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# 会话对象
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self.session = requests.Session()
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self.session.verify = self.verify_ssl
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# 设置API认证头
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if self.proxmox_token_id and self.proxmox_token_secret:
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self.session.headers.update({
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'Authorization': f'PVEAPIToken={self.proxmox_token_id}={self.proxmox_token_secret}'
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})
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logger.info("Proxmox任务控制器初始化完成")
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def get_vm_status(self, node, vmid):
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"""获取VM状态"""
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try:
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url = f"{self.proxmox_host}/api2/json/nodes/{node}/qemu/{vmid}/status/current"
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response = self.session.get(url)
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response.raise_for_status()
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return response.json()['data']['status']
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except Exception as e:
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logger.error(f"获取VM状态失败: {e}")
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return None
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def start_vm(self, node, vmid):
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"""启动VM"""
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try:
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url = f"{self.proxmox_host}/api2/json/nodes/{node}/qemu/{vmid}/status/start"
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response = self.session.post(url)
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response.raise_for_status()
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logger.info(f"VM {vmid} 启动命令已发送")
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return True
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except Exception as e:
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logger.error(f"启动VM失败: {e}")
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return False
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def stop_vm(self, node, vmid):
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"""关闭VM"""
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try:
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url = f"{self.proxmox_host}/api2/json/nodes/{node}/qemu/{vmid}/status/shutdown"
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response = self.session.post(url)
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response.raise_for_status()
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logger.info(f"VM {vmid} 关闭命令已发送")
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return True
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except Exception as e:
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logger.error(f"关闭VM失败: {e}")
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return False
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def execute_vm_command(self, node, vmid, command, username=None, password=None):
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"""在VM内执行命令（使用QEMU Guest Agent或SSH）"""
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# 这里简化处理，实际应根据环境选择QGA或SSH
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try:
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# 使用QEMU Guest Agent执行命令
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url = f"{self.proxmox_host}/api2/json/nodes/{node}/qemu/{vmid}/agent/exec"
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payload = {
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'command': command,
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'timeout': 300 # 5分钟超时
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}
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if username and password:
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payload['username'] = username
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payload['password'] = password
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response = self.session.post(url, json=payload)
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response.raise_for_status()
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result = response.json()
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pid = result['data']['pid']
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# 等待命令完成并获取输出
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time.sleep(2) # 简单等待，实际应轮询直到完成
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# 获取执行结果
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out_url = f"{self.proxmox_host}/api2/json/nodes/{node}/qemu/{vmid}/agent/exec-status"
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out_payload = {'pid': pid}
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out_response = self.session.post(out_url, json=out_payload)
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out_response.raise_for_status()
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out_data = out_response.json()['data']
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return {
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'exitcode': out_data.get('exitcode', -1),
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'out': out_data.get('out', ''),
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'err': out_data.get('err', '')
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}
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except Exception as e:
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logger.error(f"在VM内执行命令失败: {e}")
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return {'exitcode': -1, 'out': '', 'err': str(e)}
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def process_command_file(self, command_file):
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"""处理命令文件"""
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try:
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with open(command_file, 'r', encoding='utf-8') as f:
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command_data = json.load(f)
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logger.info(f"处理命令文件: {command_file}")
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# 提取命令参数
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node = command_data.get('node')
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vmid = command_data.get('vmid')
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task_command = command_data.get('command')
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task_id = command_data.get('task_id', f"task_{int(time.time())}")
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username = command_data.get('username')
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password = command_data.get('password')
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if not all([node, vmid, task_command]):
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logger.error("命令文件缺少必要参数")
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return False
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# 1. 检查VM状态
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status = self.get_vm_status(node, vmid)
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logger.info(f"VM {vmid} 当前状态: {status}")
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# 2. 如果VM未运行，则启动它
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if status != 'running':
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logger.info(f"启动VM {vmid}")
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if not self.start_vm(node, vmid):
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logger.error(f"启动VM {vmid} 失败")
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return False
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# 等待VM完全启动
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logger.info("等待VM启动...")
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for _ in range(30): # 最多等待30秒
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time.sleep(1)
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status = self.get_vm_status(node, vmid)
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if status == 'running':
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break
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else:
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logger.error("VM启动超时")
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return False
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# 3. 执行任务命令
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logger.info(f"在VM {vmid} 中执行任务: {task_command}")
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result = self.execute_vm_command(node, vmid, task_command, username, password)
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# 4. 汇报结果
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result_file = self.result_dir / f"{task_id}_result.json"
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result_data = {
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'task_id': task_id,
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'timestamp': datetime.now().isoformat(),
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'node': node,
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'vmid': vmid,
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'command': task_command,
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'exitcode': result['exitcode'],
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'output': result['out'],
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'error': result['err'],
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'success': result['exitcode'] == 0
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}
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with open(result_file, 'w', encoding='utf-8') as f:
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json.dump(result_data, f, indent=2, ensure_ascii=False)
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logger.info(f"任务结果已保存到: {result_file}")
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# 5. 关闭VM（除非配置为保持运行）
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if not command_data.get('keep_running', False):
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logger.info(f"关闭VM {vmid}")
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self.stop_vm(node, vmid)
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else:
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logger.info(f"VM {vmid} 保持运行状态")
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# 6. 移除命令文件（避免重复处理）
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command_file.unlink()
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logger.info(f"命令文件已处理并删除: {command_file}")
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return True
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except Exception as e:
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logger.error(f"处理命令文件时发生错误: {e}")
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return False
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def monitor_commands(self):
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"""监控命令目录"""
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logger.info(f"开始监控命令目录: {self.command_dir}")
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while True:
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try:
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# 查找新的命令文件
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command_files = list(self.command_dir.glob("*.json"))
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for command_file in command_files:
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# 简单的文件锁机制：尝试重命名
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try:
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locked_file = command_file.with_suffix('.json.lock')
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command_file.rename(locked_file)
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self.process_command_file(locked_file)
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locked_file.unlink() # 处理完成后删除锁文件
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except FileNotFoundError:
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# 文件可能已被其他进程处理
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pass
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except Exception as e:
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logger.error(f"处理命令文件 {command_file} 时出错: {e}")
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# 休眠一段时间再检查
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time.sleep(5)
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except KeyboardInterrupt:
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logger.info("收到中断信号，停止监控")
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break
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except Exception as e:
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logger.error(f"监控循环发生错误: {e}")
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time.sleep(10) # 出错后稍长时间再试
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def main():
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"""主函数"""
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controller = ProxmoxTaskController()
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try:
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controller.monitor_commands()
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except Exception as e:
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logger.error(f"控制器运行失败: {e}")
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return 1
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return 0
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if __name__ == "__main__":
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exit(main())
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