Python 在Windows上监控Linux日志

import paramiko
import time


def monitor_linux_log(linux_ip, username, password, log_file):
    client = paramiko.SSHClient()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(linux_ip, username=username, password=password)

    while True:
        stdin, stdout, stderr = client.exec_command(f"tail -f {log_file}")
        for line in stdout:
            print(line.strip())
        time.sleep(1)  # 等待1秒再次读取日志文件


# 调用函数开始监控日志文件
monitor_linux_log('192.168.10.x', '0', '0', '/var/log/messages')

因为tail -f命令执行之后，会一直停在那儿等待新的日志。当知道具体日志，可以匹配日志，然后停止ssh通道，停止脚本运行，Demo如下

from concurrent.futures import ThreadPoolExecutor
import re

import paramiko
import time

linux_ip = ''
username = ''
password = ''

client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(linux_ip, username=username, password=password)

flag2 = False


def monitor_linux_log():
    stdin, stdout, stderr = client.exec_command(f"tail -f /var/log/messages")
    while True:
        for line in stdout:
            print(line.strip())
            if re.search('Destroying ProtocolHandler \[\"http-nio-[0-9]{3,5}\"\]', line.strip()):
                global flag2
                flag2 = True
                print(f"11{flag2}")
                client.close()
                break
        break


def kill_ssh_client():
    print(2)
    n = 0
    while True:
        if not flag2 and n < 30:
            print(f"22{flag2}")
            time.sleep(1)
            n += 1
        elif flag2 or n >= 30:
            print(f"33{flag2}")
            client.close()
            break


def run():
    with ThreadPoolExecutor() as executor:
        # 提交任务到线程池，并获取Future对象
        future1 = executor.submit(monitor_linux_log)
        future2 = executor.submit(kill_ssh_client)


if __name__ == '__main__':
    # 调用函数开始监控日志文件
    run()