308 lines
11 KiB
Python
308 lines
11 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import pexpect
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import re
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import time
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import threading
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'''
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思路： 使用pexpect方法连接linux服务器，在远程执行系统命令获取数据，首先定义一个主方法，是连接系统，执行命令\
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然后定义各种资源方法 cpu 内存等，将命令传给主方法，处理返回数据，最后使用多进程执行各种资源方法。
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'''
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"""
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主方法
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127.0.0.1#远程服务器ip地址
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"""
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remoteUser = 'root'
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remoteHost = '127.0.0.1'
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remotePass = '1'
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def ssh_command(user, host, password, command):
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ssh_new_key = 'Are you sure you want to continue connecting'
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child = pexpect.spawn('ssh -l %s %s %s' % (user, host, command))
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i = child.expect([pexpect.TIMEOUT, ssh_new_key, 'password: '])
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if i == 0:
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print 'ERROR!'
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print 'SSH could not login. Here is what SSH said:'
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print child.before, child.after
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return None
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if i == 1:
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child.sendline('yes')
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child.expect('password: ')
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i = child.expect([pexpect.TIMEOUT, 'password: '])
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if i == 0:
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print 'ERROR!'
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print 'SSH could not login. Here is what SSH said:'
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print child.before, child.after
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return None
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child.sendline(password)
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return child
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"""
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内存监控
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"""
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def mem_info():
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child = ssh_command(remoteUser, remoteHost, remotePass, "cat /proc/meminfo")
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child.expect(pexpect.EOF)
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mem = child.before
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mem_values = re.findall("(\d+)\ kB", mem)
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MemTotal = mem_values[0]
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MemFree = mem_values[1]
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Buffers = mem_values[2]
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Cached = mem_values[3]
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SwapCached=mem_values[4]
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SwapTotal = mem_values[13]
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SwapFree = mem_values[14]
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print '******************************内存监控*********************************'
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print "*******************时间：", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), "******************"
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print "总内存：",MemTotal
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print "空闲内存：", MemFree
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print "给文件的缓冲大小:",Buffers
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print "高速缓冲存储器使用的大小:", Cached
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print "被高速缓冲存储用的交换空间大小:", SwapCached
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print "给文件的缓冲大小:", Buffers
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if int(SwapTotal) == 0:
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print u"交换内存总共为：0"
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else:
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Rate_Swap = 100 - 100*int(SwapFree)/float(SwapTotal)
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print u"交换内存利用率：", Rate_Swap
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Free_Mem = int(MemFree) + int(Buffers) + int(Cached)
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Used_Mem = int(MemTotal) - Free_Mem
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Rate_Mem = 100*Used_Mem/float(MemTotal)
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print u"内存利用率：", str("%.2f" % Rate_Mem), "%"
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"""
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内核线程、虚拟内存、磁盘、陷阱和 CPU 活动的统计信息
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"""
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def vm_stat_info():
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child = ssh_command(remoteUser, remoteHost, remotePass, "vmstat 1 2 | tail -n 1")
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child.expect(pexpect.EOF)
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vmstat_info = child.before.strip().split()
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processes_waiting = vmstat_info[0]
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processes_sleep = vmstat_info[1]
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swpd = vmstat_info[2]
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free = vmstat_info[3]
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buff = vmstat_info[4]
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cache = vmstat_info[5]
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si = vmstat_info[6]
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so = vmstat_info[7]
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io_bi = vmstat_info[8]
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io_bo = vmstat_info[9]
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system_interrupt = vmstat_info[10]
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system_context_switch = vmstat_info[11]
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cpu_user = vmstat_info[12]
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cpu_sys = vmstat_info[13]
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cpu_idle = vmstat_info[14]
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cpu_wait = vmstat_info[15]
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st=vmstat_info[16]
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print '****************************内核线程、虚拟内存、磁盘、陷阱和 CPU 活动的统计信息监控****************************'
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print "*******************时间：", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), "******************"
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print "等待运行进程的数量:", processes_waiting
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print "处于不间断状态的进程:", processes_sleep
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print "使用虚拟内存(swap)的总量:", swpd
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print "空闲的内存总量:", free
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print "用作缓冲的内存总量:", buff
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print "用作缓存的内存总量:", cache
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print "交换出内存总量 :", si
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print "交换入内存总量 :", so
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print "从一个块设备接收:", io_bi
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print "发送到块设备:", io_bo
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print "每秒的中断数:", system_interrupt
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print "每秒的上下文切换数:", system_context_switch
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print "用户空间上进程运行的时间百分比:", cpu_user
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print "内核空间上进程运行的时间百分比:", cpu_sys
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print "闲置时间百分比:", cpu_idle
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print "等待IO的时间百分比:", cpu_wait
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print "从虚拟机偷取的时间百分比:", st
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'''
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cpu监控
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'''
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def cpu_info():
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child = ssh_command(remoteUser, remoteHost, remotePass, "cat /proc/cpuinfo")
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child.expect(pexpect.EOF)
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cpuinfo = child.before
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cpu_num = re.findall('processor.*?(\d+)', cpuinfo)[-1]
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cpu_num = str(int(cpu_num) + 1)
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print '***************************************cpu监控***************************************'
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print "*******************时间：", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), "******************"
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print u"CPU数目：", cpu_num
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li = cpuinfo.replace('\t', '').split('\r')
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CPUinfo = {}
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procinfo = {}
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nprocs = 0
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for line in li:
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if line.find("processor") > -1:
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CPUinfo['CPU%s' % nprocs] = procinfo
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nprocs = nprocs + 1
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else:
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if len(line.split(':')) == 2:
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procinfo[line.split(':')[0].strip()] = line.split(':')[1].strip()
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else:
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procinfo[line.split(':')[0].strip()] = ''
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for processor in CPUinfo.keys():
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print "CPU属于的名字及其编号、标称主频:",CPUinfo[processor]['model name']
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print "CPU属于其系列中的哪一代的代号:", CPUinfo[processor]['model']
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print "CPU制造商:", CPUinfo[processor]['vendor_id']
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print "CPU产品系列代号:", CPUinfo[processor]['cpu family']
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print "CPU的实际使用主频:", CPUinfo[processor]['cpu MHz']
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"""
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负载均衡
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"""
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def load_stat():
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child = ssh_command(remoteUser, remoteHost, remotePass, "cat /proc/loadavg")
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child.expect(pexpect.EOF)
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loadavgs = child.before.strip().split()
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print '************************负载均衡监控****************************'
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print "*******************时间：",time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()),"******************"
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print "系统5分钟前的平均负载：", loadavgs[0]
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print "系统10分钟前的平均负载：", loadavgs[1]
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print "系统15分钟前的平均负载：", loadavgs[2]
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print "分子是正在运行的进程数,分母为总进程数：",loadavgs[3]
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print "最近运行的进程id：", loadavgs[4]
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"""
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获取网络接口的输入和输出
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"""
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def ionetwork():
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child = ssh_command(remoteUser, remoteHost, remotePass, "cat /proc/net/dev")
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child.expect(pexpect.EOF)
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netdata = child.before
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li = netdata.strip().split('\n')
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print '************************获取网络接口的输入和输出监控****************************'
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print "*******************时间：",time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()),"******************"
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net = {}
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for line in li[2:]:
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line = line.split(":")
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eth_name = line[0].strip()
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# if eth_name != 'lo':
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net_io = {}
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net_io['Receive'] = round(float(line[1].split()[0]) / (1024.0 * 1024.0), 2)
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net_io['Transmit'] = round(float(line[1].split()[8]) / (1024.0 * 1024.0), 2)
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net[eth_name] = net_io
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print net
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"""
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磁盘空间监控
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"""
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def disk_stat():
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child = ssh_command(remoteUser, remoteHost, remotePass, "df -h")
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child.expect(pexpect.EOF)
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disk = child.before
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disklist = disk.strip().split('\n')
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disklists=[]
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for disk in disklist:
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disklists.append(disk.strip().split())
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print '************************磁盘空间监控****************************'
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print "*******************时间：", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), "******************"
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for i in disklists[1:]:
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print "\t文件系统：", i[0],
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print "\t容量：", i[1],
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print "\t已用：", i[2],
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print "\t可用：", i[3],
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print "\t已用%挂载点：", i[4]
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"""
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端口监控
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一般是远程服务器用户名用户
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"""
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def getComStr():
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child = ssh_command(remoteUser, remoteHost, remotePass, "netstat -tpln")
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child.expect(pexpect.EOF)
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Com = child.before
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print '******************************端口监控*********************************'
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print "*******************时间：", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), "******************"
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print Com
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"""
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获取网络接口的输入和输出
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"""
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def cpu():
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child = ssh_command(remoteUser, remoteHost, remotePass, 'cat /proc/stat | grep "cpu "')
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child.expect(pexpect.EOF)
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child1 = ssh_command(remoteUser, remoteHost, remotePass, 'cat /proc/stat | grep "cpu "')
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child1.expect(pexpect.EOF)
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cpus = child.before.strip().split()
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cpus1 = child1.before.strip().split()
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print '************************cpu使用情况****************************'
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print "*******************时间：",time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()),"******************"
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T1=int(cpus[1])+int(cpus[2])+int(cpus[3])+int(cpus[4])+int(cpus[5])+int(cpus[6])+int(cpus[8])+int(cpus[9])
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T2=int(cpus1[1]) + int(cpus1[2]) + int(cpus1[3]) + int(cpus1[4] )+ int(cpus1[5] )+int( cpus1[6] )+ int(cpus1[8] )+ int(cpus1[9])
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Tol=T2-T1
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Idle=int(cpus1[4]) - int(cpus[4])
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print '总的cpu时间1:',T1
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print '总的cpu时间2:', T2
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print '时间间隔内的所有时间片:', Tol
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print '计算空闲时间idle:', Idle
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print "计算cpu使用率：",100*(Tol-Idle)/Tol,"%"
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"""
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第一种执行
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"""
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def alltask():
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try:
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threads = []
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t1 = threading.Thread(target=mem_info)
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threads.append(t1)
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t2 = threading.Thread(target=vm_stat_info)
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threads.append(t2)
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t3 = threading.Thread(target=cpu_info)
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threads.append(t3)
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t4 = threading.Thread(target=load_stat)
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threads.append(t4)
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t5 = threading.Thread(target=ionetwork)
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threads.append(t5)
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t6 = threading.Thread(target=disk_stat)
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threads.append(t6)
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t7 = threading.Thread(target=getComStr)
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threads.append(t7)
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t8 = threading.Thread(target=cpu)
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threads.append(t8)
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for n in range(len(threads)):
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threads[n].start()
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except Exception, e:
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print str(e)
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"""
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第二种执行
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"""
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if __name__ == '__main__':
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try:
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threads = []
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t1 = threading.Thread(target=mem_info)
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threads.append(t1)
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t2 = threading.Thread(target=vm_stat_info)
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threads.append(t2)
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t3 = threading.Thread(target=cpu_info)
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threads.append(t3)
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t4 = threading.Thread(target=load_stat)
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threads.append(t4)
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t5 = threading.Thread(target=ionetwork)
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threads.append(t5)
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t6 = threading.Thread(target=disk_stat)
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threads.append(t6)
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t7 = threading.Thread(target=getComStr)
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threads.append(t7)
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t8 = threading.Thread(target=cpu)
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threads.append(t8)
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for n in range(len(threads)):
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threads[n].start()
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except Exception, e:
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print str(e) |