通过python 执行 nohup 不生效的解决

import paramiko
import time
 
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('192.168.1.2', 22, 'root', '123456')
ssh.exec_command('nohup ping localhost & \n')
time.sleep(1)

import paramiko
import time
 
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('192.168.1.2', 22, 'root', '123456')
chan = ssh.invoke_shell()
chan.send('nohup ping localhost & \n')
time.sleep(1)

import paramiko
 
# 创建SSH对象
ssh = paramiko.SSHClient()
# 允许连接不在know_hosts文件中的主机
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
# 连接服务器
ssh.connect(hostname='192.168.0.3', port=22, username='xxx')
# 执行命令
stdin, stdout, stderr = ssh.exec_command('cd ~/ ; nohup python3.6 run_test.py > nohup_test.log 2>&1 &')
# 获取命令结果
result = stdout.read()
# 关闭连接
ssh.close()

import paramiko
 
# 创建SSH对象
ssh = paramiko.SSHClient()
# 允许连接不在know_hosts文件中的主机
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
# 连接服务器
ssh.connect(hostname='192.168.0.3', port=22, username='xxx', key=private_key)
# 添加下面代码
transport = ssh.get_transport()
channel = transport.open_session()
# 执行命令 此方法没有返回值
channel.exec_command('cd ~/ ; nohup python3.6 run_test.py > nohup_test.log 2>&1 &')
 
# 关闭连接
ssh.close()

# -*- coding: utf-8 -*-
"""
20190330
"""
 
import paramiko
import time
from confs.log import logger # 自行导入logging模块即可
 
 
class EasyConnectHandle(object):
  """操作远程服务器"""
 
  def __init__(self, connect_host_name:dict):
    """初始化参数"""
    """
      "test":{
        "ip":"192.168.0.189",
        "user_name":"xxxx",
        "pwd":"huhuhu"
      },
    """
    self.connect_host = connect_host_name
    self.ssh = paramiko.SSHClient()
    self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # 允许连接陌生服务器
    self.ssh.connect(hostname=self.connect_host["ip"], port=22, username=self.connect_host["user_name"],
             password=self.connect_host["pwd"], timeout=10) # 初始化的时候连接到新的服务器
    logger.info(f"登录服务器---{self.connect_host['ip']}成功:")
 
  def __new__(cls, *args, **kwargs):
    """单例模式"""
    if not hasattr(cls, '_instance'):
      cls._instance = super(EasyConnectHandle, cls).__new__(cls)
    return cls._instance
 
  def exec(self, cmd=""):
    """执行操作"""
    stdin, stdout, stderr = self.ssh.exec_command(cmd)
    return stdout.read().decode()
 
  def quit(self):
    """断开服务器"""
    self.ssh.close()
    logger.info(f"退出服务器---{self.connect_host['ip']}成功")
 
if __name__ == '__main__':
  test_host = {
    "test": {
        "ip": "192.168.0.111",
        "user_name": "xxxx",
        "pwd": "xxxx",
        "jobs": [
          {
            "path": "/home/lemon",
            "type": "touch test_1.sh"
          },
          {
            "path": "/home/lemon",
            "type": "touch test_2.sh"
          }
        ]
      }
    }
  for i in ["test"]:
    easy_conn = EasyConnectHandle(test_host[i])
    transport = easy_conn.ssh.get_transport()
    if len(test_host[i].get("jobs", [])) >= 1:
      for job in test_host[i]["jobs"]:
        channel = transport.open_session()
        channel.exec_command(f"cd {job['path']};{job['type']}")
        logger.info(f"服务器---{easy_conn.connect_host['ip']}执行---cd {job['path']};{job['type']}---成功")
        time.sleep(2)
    else:
      logger.info(f"服务器---{easy_conn.connect_host['ip']}暂时没有任务")
    easy_conn.quit()