本文实例讲述了python通过ssh-powershell监控windows的方法。分享给大家供大家参考。具体分析如下：
对于服务器的监控来说，监控linux不管是自己动手写脚本还是用一些开源的工具比如nagios，zenoss什么的。但毕竟还是有些公司有windows做服务器的，相对linux来说，windows没有方便的shell，cmd下提供的命令对于监控来说远远没有linux方便。但是现在windows上如果安装了powershell（win7，2008自带），就比以前方便多了，linux上的命令基本都能在powershell里执行，比如查看进程还是ps.
自己封装了一个python通过ssh（通过pexpect模块）调用powershell的脚本，里面包快ps，netstat，ping检测，查看硬盘，cpu信息和负载，内存信息。通过创建ssh_win32类对象，然后调用它的方法，返回的都是解析好的python对象。
ssh_powershell.py：
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#! /usr/bin/env python# -*- coding: utf-8 -*-import refrom pexpect import *class ssh_win32: def __init__(self, user, host, password=None,systemroot='c',papath='',timeout=5,verbose=0): self.user = user#监控机器的username self.host = host#监控机器的ip self.verbose = verbose self.password = password#密码 self.timeout=timeout#执行命令的timeout self.systemroot=systemroot#windows 所安装的盘符 if not papath:#powershell.exe的路径self.powershell_path=self.systemroot+':/WINDOWS/system32/WindowsPowerShell/v1.0/powershell.exe ' self.key = [ 'authenticity', 'assword:', '@@@@@@@@@@@@', 'Command not found.', EOF, ] self.f = open('ssh.out','w') def ssh(self,command): cmd='ssh -l %s %s %s'%(self.user,self.host,command) print "cmd:",cmd con=spawn(cmd,timeout=self.timeout) seen=con.expect(self.key) if seen == 0: con.sendline('yes') seen = con.expect(self.key) if seen == 1: # if not self.password: # self.password = getpass.getpass('Remote password: ') con.sendline(self.password) try: res=con.read() except Exception ,e: res=con.before# print "res:",res return res def ssh_disk(self): cmd=self.powershell_path+"Get-WmiObject win32_logicaldisk" res=self.ssh(cmd) disk={} if res: res=res.split('No such file or directory')[-1].replace('\r','').split('\n') res=[c for c in res if c]# print 'res:',res predisk='C' for d in res:# print d key,value=d.split(':',1)# print d# print 'key:',key,'value:',value key=key.strip() value=value.strip() if key=='DeviceID' and value not in disk.keys(): predisk=value disk[predisk]={} disk[predisk][key]=value else: if key in ['FreeSpace','Size']: if value: value=int(value)/1024/1024/1024 disk[predisk][key]=value for d in disk.keys(): if disk[d]['DriveType']!='3': disk.pop(d)# print 'disk:',disk return disk def ssh_cpu(self): cmd=self.powershell_path+'gwmi -computername localhost win32_Processor' res=self.ssh(cmd) res=res.split('No such file or directory')[-1].replace('\r','').split('\n') res=[r for r in res if r]# print res cpu={} for i in res:# print '='*10# print i i=i.split(':') # print i if len(i)==2: key,value=i else: continue key=key.strip() value=value.strip()# print 'key:',key# print 'value:',value cpu[key]=value return cpu def ssh_memory(self): totalmem=self.powershell_path+'Get-WmiObject win32_OperatingSystem TotalVisibleMemorySize' freemem=self.powershell_path+'Get-WmiObject win32_OperatingSystem FreePhysicalMemory' memory={} for cmd in [totalmem,freemem]: res=self.ssh(cmd) if 'Win32_OperatingSystem' in res: res=res=res.replace('\r','').split('\n') res=[m for m in res if m][-1] print 'res:',res key,value=res.split(':') key=key.strip() value=value.strip() memory[key]=value else: print "not return data" return None return memory def ssh_ping(self,host): cmd='ping -n 1 %s'%host patt=r'.+?(\d*)% loss.*' res=self.ssh(cmd).replace('\r','').replace('\n','') print res m=re.match(patt,res) if m: lost_percent=m.group(1) print 'lost_percent:',lost_percent return int(lost_percent) else: return None def ssh_ps(self): cmd=self.powershell_path+'ps' res=self.ssh(cmd) ps=[] if '-- -----------' in res: res=res.replace('\r','').split('-- -----------')[-1].split('\n') res=[d for d in res if d.strip()] for p in res: process={} row=[para for para in p.split(' ') if para.strip()] process['handles']=row[0] process['npm']=row[1] process['pm']=row[2] process['ws']=row[3] process['vm']=row[4] process['cpu']=row[5] process['id']=row[6] process['process_name']=row[-1] ps.append(process)# print ps return ps else: return None def ssh_netstat(self): cmd='netstat -ao' res=self.ssh(cmd) netstat=[] if 'PID' in res: res=res.replace('\r','').split('PID')[-1].split('\n') res=[d for d in res if d.strip()] for p in res: process={} row=[para for para in p.split(' ') if para.strip()] process['proto']=row[0] process['local_address']=row[1] process['foreign_address']=row[2] process['state']=row[3] process['pid']=row[-1] netstat.append(process)# print netstat return netstat else: return Noneif __name__ == "__main__":cmd="c:/WINDOWS/system32/WindowsPowerShell/v1.0/powershell.exe ps" user='admin' host='192.168.123.105' password='123456' ssh=ssh_win32(user,host,password,systemroot='c',timeout=5)# print ssh.ssh_cpu()# print "\n\n\n\n"# print ssh.ssh_disk()# print "\n\n\n\n"# print ssh.ssh_memory()# print ssh.ssh_ping(host)# print ssh.ssh_ps()# print ssh.ssh_netstat() |
希望本文所述对大家的Python程序设计有所帮助。
