python检测进程和端口_python监控nginx端口和进程状态

#!/usr/local/bin/python

# coding:utf-8

import psutil

import sys

import os

# 获取主机名称

def hostname():

sys = os.name

if sys == 'nt':

hostname = os.getenv('computername')

return hostname

elif sys == 'posix':

host = os.popen('echo $HOSTNAME')

try:

hostname = host.read()

return hostname

finally:

host.close()

else:

return 'Unkwon hostname'

# 获取进程状态

def processStatus(processName):

pids = psutil.pids() #获取主机所有的PID

a = 1

for pid in pids: #对所有PID进行循环

p = psutil.Process(pid) #实例化进程对象

if p.name() == processName: #判断实例进程名与输入的进程名是否一致(判断进程是否存活)

print (a) #返回1，进程存活

a += 1

if a == 1:

print (0) #返回0，进程逝去

# 获取进程PID

def processPID(processName):

pids = psutil.pids()

for pid in pids:

p = psutil.Process(pid)

if p.name() == processName:

return pid

return True # 如果找到该进程则打印它的PID，返回true

else:

print('找不到进程'+processName)

return False # 没有找到该进程，返回false

# 获取进程的端口号

def processPort(pid):

p = psutil.Process(pid)

data=p.connections()

data_listen=[x for x in data if 'LISTEN' in x ]

# pid_port=[]

# for port in data_listen:

# pid_port.append((port.laddr.port))

# return list(set(pid_port))

return list(data_listen[0][3])[1]

hostname=hostname().strip()

PID=processPID('nginx')

port=processPort(PID)

json_data = [

{"name": hostname+'-nginx', "port": port,"host_ip":LOCAL_IP,"PID":PID}

]

AutoDiscoveryJson(json_data, object_id='HOST')