python监控网卡流量并使用graphite绘图的示例


            复制代码 代码如下:#!/usr/bin/env pythonimport sys,timefrom socket import socketdef read_interface(in_file):    with file(in_file) as f:        return f.readlines()[2:]def set_interface(inter_msg):    dic={}    for i in xrange(len(inter_msg)):        dic[inter_msg[i].split(":")[0].strip()]={"in":inter_msg[i].split(":")[1].strip().split()[0],"out":inter_msg[i].split(":")[1].strip().split()[8]}    return dicCARBON_SERVER = '127.0.0.1'CARBON_PORT = 2003delay = 3sock = socket()try:    sock.connect( (CARBON_SERVER,CARBON_PORT) )except:    print "Couldn't connect to %(server)s on port %(port)d, is carbon-agent.py running?" % { 'server':CARBON_SERVER, 'port':CARBON_PORT }    sys.exit(1)while True:    now = int( time.time() )    lines=[]    int1=read_interface("/proc/net/dev")    inter_dic1=set_interface(int1)    time.sleep(1)    int2=read_interface("/proc/net/dev")    inter_dic2=set_interface(int2)    print int(inter_dic2[inter_dic2.keys()[1]]["in"]),int(inter_dic1[inter_dic1.keys()[1]]["in"])    for i in xrange(len(inter_dic1.keys())):        lines.append("interface.%s_in %s %d" % (inter_dic1.keys()[i],int(inter_dic2[inter_dic2.keys()[i]]["in"])-int(inter_dic1[inter_dic1.keys()[i]]["in"]),now))        lines.append("interface.%s_out %s %d" % (inter_dic1.keys()[i],int(inter_dic2[inter_dic2.keys()[i]]["out"])-int(inter_dic1[inter_dic1.keys()[i]]["out"]),now))    message = '\n'.join(lines) + '\n'     print "sending message\n"    print '-' * 80    print message    sock.sendall(message)    time.sleep(delay)