- #!/usr/bin/python
- # -*- coding:utf8 -*-
- import paramiko
- import re
- from time import sleep
- linux_info=(
- ['ssoweb12','192.168.5.32'],
- ['ssoweb17','192.168.5.37'],
- ['ssoweb18','192.168.5.38']
- )
- server_user='root'
- server_pw='passw0rd'
- server_info={}
- def cpu_r(cpu_stat):
- # 返回CPU当前的总时间片和空闲时间片信息的数据
- sys_cpu_info_t = re.findall(r'cpu .*\\d',cpu_stat)
- cpu_z_str = ' '.join(sys_cpu_info_t)
- cpu_z_list = list(cpu_z_str.split())
- cpu_z_list.remove("cpu")
- f_line_a=[]
- for i in cpu_z_list:
- i=int(i)
- f_line_a.append(i)
- total = sum(f_line_a)
- idle = f_line_a[3]
- return total,idle
- def meminfo_disc(meminfo_r):
- # 返回内存使用信息的一个字典,取值需要 /proc/meminfo 的内容
- aa = re.sub(r' kB','',meminfo_r)
- bb = re.sub(r' +','',aa)
- cc = re.sub(r'\\n',':',bb)
- dd = cc.split(":")
- meminfo_d = {}
- while len(dd)>1:
- meminfo_d[dd[0]]=dd[1]
- del dd[0:2]
- return meminfo_d
- for i in linux_info:
- server_id=i[0]
- server_ip=i[1]
- ss = paramiko.SSHClient()
- ss.set_missing_host_key_policy(paramiko.AutoAddPolicy())
- ss.connect(server_ip,22,server_user,server_pw)
- stdin,stdout,stderr=ss.exec_command('cat /proc/stat')
- sys_cpu_stat = stdout.read()
- stdin,stdout,stderr=ss.exec_command('cat /proc/meminfo')
- meminfo_r = stdout.read()
- total_a,idle_a=cpu_r(sys_cpu_stat)
- sleep(3)
- stdin,stdout,stderr=ss.exec_command('cat /proc/stat')
- sys_cpu_stat = stdout.read()
- total_b,idle_b=cpu_r(sys_cpu_stat)
- ss.close()
- sys_idle = idle_b - idle_a
- sys_total = total_b - total_a
- sys_us = sys_total - sys_idle
- cpu_a = (float(sys_us)/sys_total)*100
- cpu_b = str(round(cpu_a,2))+'%'
- meminfo_key = meminfo_disc(meminfo_r)
- mem_kx = int(meminfo_key.get('MemTotal'))-int(meminfo_key.get('MemFree'))-int(meminfo_key.get('Buffers'))-int(meminfo_key.get('Cached'))
- mem_kx_l = (float(mem_kx)/int(meminfo_key.get('MemTotal')))*100
- mem_kx_lv = str(round(mem_kx_l))+'%'
- swap_user = float(meminfo_key.get('SwapTotal'))-int(meminfo_key.get('SwapFree'))/float(meminfo_key.get('SwapTotal'))
- swap_user_l = (float(meminfo_key.get('SwapTotal'))-int(meminfo_key.get('SwapFree')))/int(meminfo_key.get('SwapTotal'))*100
- swap_user_lv = str(round(swap_user_l))+'%'
- server_info_list=[server_id,server_ip,cpu_b,mem_kx_lv,swap_user_lv]
- server_info[server_id]=server_info_list
- # 输出一个字典
- print server_info
- #该片段来自于http://www.codesnippet.cn/detail/0705201512513.html
来源: http://www.codesnippet.cn/detail/0705201512513.html