Python implements Linux KVM system monitoring metrics, written many years ago to help colleagues, quickly learn Python technology

#!/usr/bin/env python#-*-coding:utf8-*-"" "@Author  :  villiam sheng@group  :   Linux Group@Date   :  2011-07-18@Funtion:             Update kvm host status ...             get_nic: get a week network  flow                1, get seven days before flow,get maximum value!                 2,Get Seven days before  flow,get average value!  "" "Import os,sys,libvirt,socket,shutil,refrom  statvfs  import f_blocks,f_bavail,f_bsize class kvm_os_status (object):     def  __init__ (self): &NBSP;&NBsp;      self.vmm = {}         Try:            self.conn = libvirt.open (None)         except libvirt.libvirtError,e:             print e     def get_ Mem (self):        try:             f = open ('/proc/meminfo ', ' R ')              for i in f.readlines ():                 if i.find (' memtotal: ')  != -1:                      Total_mem=int (I.split(‘:‘) [1].split (' KB ') [0])/1024                     continue             try:                exec _command =  "" " grep " Memory " /data*/domains/*/*.xml 2>/dev/null |awk  -F  "<memory>"   ' {print $2} ' |awk -f  "</memory>"   ' {print $1} '   ' ""                 mem  = os.popen (Exec_command). ReadLines ()                  act_mem = 0                 for m in mem:                     act_mem += int (m)  / 1024                 self.vmm[' Free _mem '] = total_mem - act_mem             except Exception,e:                 pass        except Exception,e:             pass     def  GET_MIP (self):        try:             exec_command =  "" "Cat /etc/sysconfig/network-scripts/ifcfg-br0  |grep  "IPAddr" |awk -f "="   ' {print $2} '  2>/dev/null "" "             mip = os.popen (Exec_command). read (). Strip ()              sock=socket.socket (Socket.af_inet,socket. SOCK_DGRAM)             try:                 sock.connect ((mip,0))              except socket.error,e:                 exec_command =  " "" cat /etc/sysconfig/network-scripts/ifcfg-br1 |grep  "ipaddr" |awk -f "="   "{print  $ ' "" "                nip  = os.popen (Exec_command). read (). Strip ()                  self.vmm[' MIP '] = nip            self.vmm[' MIP '] =  Sock.getsockname () [0]        except:             pass      def get_disk (self):         extends = []         disk={}        try:             ext_disk = os.popen ("df -h |awk  ' {print $1,$ 6} ' |grep -v  ' Tmpfs ' |grep -v  ' Filesystem ' |grep -v  ' sda1 ' |grep -v  ' MFS ' | grep -v  ' T '). ReadLines ()         except exception,e:             print e         if ext_disk ==  "":             self.vmm[' Free_disk '] = vfs[f_blocks]*vfs[f_bsize]/1024/1024/1024         else:            free_disk = 0             for disk in ext_disk:                 try:                      vfs = os.statvfs (Disk.split () [1])                  except Exception,e:                     print e                 full_space = vfs[f_blocks]*vfs[f_bsize]/1024/1024/1024                 free_space =  vfs[F_BAVAIL]*vfs[F_BSIZE]/1024/1024/1024                 imgs = os.popen ("ls -ls %s/domains/vm*/data*.img  2>/dev/null | awk  ' {print $1,$6} ' " % disk.split () [1]). ReadLines ()                  if imgs:                      for i in imgs:                         t_size, f_size = i.strip (). Split ()                          free_space -= int (f_size)/1024/1024/1024                         if  Int (t_size)  != 0:                             free_space +=  int (t_size)/1024/1024                 disk={disk.split () [1]:free_space}                 for i in disk.keys ():                     free_disk +=  disk[i]            self.vmm[' Free_disk '] = free_disk             a = os.popen ("Cat /etc/issue|awk   ' {print $7} ' |grep -v  ' Kernel ' |grep -v  ' ^$ ' "). ReadLine ()              self.vmm[' Os_type '] =  ' RHEL%sx64 '%a.strip ()       def count (self):         self.vmm[' vmm_ Count '] = 0        try:             for id in self.conn.listdomainsid ():                 dom =  Self.conn.lookupByID (ID)                  self.vmm[' Vmm_count '] = self.vmm[' Vmm_count '] + 1        except  libvirt.libvirterror,e:            pass         print self.vmm    def work (self):         self.get_mem ()          Self.get_disk ()         self.get_mip ()          self.count ()  if __name__ ==  "__main__":     st =  kvm_os_status ()     st.work ()

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Python implements Linux KVM system monitoring metrics, written many years ago to help colleagues, quickly learn Python technology