3、python自动化运维——定制业务质

2023-01-31 07:49

短信预约 -IT技能 免费直播动态提醒

通过psutil和rrdtool模块相结合绘制网卡网络流量

实例代码：

./cretea.py

#!/usr/bin/python
import time
import rrdtool

cur_time=str(int(time.time()))
rrd=rrdtool.create('Flow.rrd','--step','300','--start',cur_time,
      'DS:eth0_in:COUNTER:600:0:U',
      'DS:eth0_out:COUNTER:600:0:U',
      'RRA:AVERAGE:0.5:1:600',
      'RRA:AVERAGE:0.5:6:700',
      'RRA:AVERAGE:0.5:24:775',
      'RRA:AVERAGE:0.5:288:797',
      'RRA:MAX:0.5:1:600',
      'RRA:MAX:0.5:6:700',
                'RRA:MAX:0.5:24:775',
      'RRA:MAX:0.5:444:797',
      'RRA:MIN:0.5:1:600',
                'RRA:MIN:0.5:6:700',
                'RRA:MIN:0.5:24:775',
                'RRA:MIN:0.5:444:797')
if rrd:
   print(rrdtool.error())

./update.py

import time,psutil
   import rrdtool
 total_input_traffic=psutil.net_io_counters()[1]
 total_output_traffic=psutil.net_io_counters()[0]
 starttime=int(time.time())
 update=rrdtool.updatev('/root/Scripts/rrdtools/Flow.rrd','%s:%s:%s' % (str(starttime),str(total_input_traffic),str(total_output_traffic)))
   print(update)

./graph.py

import time,psutil
import rrdtool

title="Server network,traffic flow ("+time.strftime('%Y-%m-%d',time.localtime(time.time()))+")"
   rrdtool.graph("Flow.png","--start","-1d","--vertical-label=Bytes/s",
   "--x-grid","MINUTE:12:HOUR:1:HOUR:1:0:%H","--width","650","--height","230",
   "--title",title,
   "DEF:inoctets=Flow.rrd:eth0_in:AVERAGE",
   "DEF:outoctets=Flow.rrd:eth0_out:AVERAGE","CDEF:total=inoctets,outoctets,+",
   "LINE1:total#FF8833:Total traffic","AREA:inoctets#00FF00:IN traffic",
   "LINE1:outoctets#0000FF:Out traffic","HRULE:6144#FF0000:Alarm value\\r",
   "CDEF:inbits=inoctets,8,*","CDEF:outbits=outoctets,8,*",
   "COMMENT:\\r",
   "COMMENT:\\r",
   "GPRINT:inbits:AVERAGE:Avg In traffic\: %6.2lf %Sbps",
   "COMMENT: ","GPRINT:inbits:MAX:Max In traffic\: %6.2lf %Sbps",
   "COMMENT: ","GPRINT:inbits:MIN:Min In traffic\: %6.2lf %Sbps\\r","COMMENT: ","GPRINT:outbits:AVERAGE:Avg OuT traffic\: %6.2lf %Sbps","COMMENT: ","GPRINT:outbits:MAX:Max OuT traffic\: %6.2lf %Sbps",
   "COMMENT: ","GPRINT:outbits:MIN:Min OuT traffic\: %6.2lf %Sbps\\r")

实现TCP探测目标路由轨迹

所需安装包:ImageMagick(转换图片格式工具),graphviz(绘制图形工具)

通过scapy的traceroute方法查询到路由轨迹，然后调用graph()方法进行路由轨迹的绘制，中间调用ASN映射查询IP地理信息并生成svg流程文档，最后使用ImageMagic工具转换svg格式为png格式。

import logging,warnings
import sys,os,subprocess
import time

warnings.filterwarnings("ignore",category=DeprecationWarning)

#屏蔽scapy 无用信息
logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
#屏蔽模块IPV6多余告警
from scapy.all import traceroute
domains=raw_input("please input you domain name:\n")

#接受输入的域名或IP
target=domains.split(" ")
dport = [80]

if len(target) >=1 and target[0]!='':
   res,unans =traceroute(target,dport=dport,retry=-2)#启动路由跟踪
   res.graph(target="> test.svg") #生成svg图片
   time.sleep(1)
   subprocess.Popen("/usr/bin/convert test.svg test.png",shell=True)
else:
   print("IP/domain name Error")