python编程实例-收集主机信息

收集主机信息：

主机名

ip

操作系统版本osver

服务器厂商vendor

服务器型号：product

服务器序列号：sn

CPU型号：cpu_model

CPU核数：cpu_num

内存大小：Memory

#!/usr/bin/env python

from subprocess import Popen,PIPE

def getIfconfig():
    p = Popen(['ifconfig'],stdout=PIPE)
    data = p.stdout.read()
    return data

def getDmi():
    p = Popen(['dmidecode'],stdout=PIPE)
    data = p.stdout.read()
    return data

def parseData(data):
    parsed_data = []
    new_line = ''
    data = [i for i in data.split('
') if i]
    for line in data:
        if line[0].strip():
             parsed_data.append(new_line)
            new_line = line +'
'
        else:        
            new_line += line+'
'
    parsed_data.append(new_line)
    return [i for i in parsed_data if i]

def parseIfconfig(parsed_data):
    parsed_data = [i for i in parsed_data if not i.startswith('lo')]
    for lines in parsed_data:
        line_list = lines.split('
')
        devname = line_list[0].split()[0]
        macaddr = line_list[0].split()[-1]
        ipaddr = line_list[1].split()[1].split(':')[1]
        break
    dic['ip'] =ipaddr
    return dic

def parseDmi(parsed_data):
    dic = {}
    parsed_data = [i for i in parsed_data if i.startswith('System Information')]
    parsed_data = [i for i in parsed_data[0].split('
')[1:] if i]
    dmi_dic =  dict([i.strip().split(':') for i in parsed_data])
    dic['vendor'] = dmi_dic['Manufacturer']
    return dmi_dic

def getHostname(f):
    with open(f) as fd:
        for line in fd:
            if line.startswith('HOSTNAME'):
                hostname = line.split('=')[1].strip()
                break
    return {'hostname':hostname}

def getOsver(f):
    with open(f) as fd:
        for line in fd:
            osver = line.split()
            break
    return {'osver':osver}

def getCpu(f):
    num = 0
    with open(f) as fd:
        for line in fd:
            if line.startswith('processor'):
                num +=1
            if line.startswith('model name'):
                cpu_model = line.split(':')[1].split()
                cpu_model = cpu_model[0]+' '+cpu_model[-1]
    return {'cpu_num':num,'cpu_model':cpu_model}

def getMemory(f):
    with open(f) as fd:
        for line in fd:
            if line.startswith('MemTotal'):
                mem = int(line.split()[1].strip())
                break
    mem = "%d" % int(mem/1024.0)+'M'
    return {'Memory':mem}
                

if __name__ == '__main__':
    dic = {}
    data_ip = getIfconfig()
    parsed_data_ip = parseData(data_ip)
    ip = parseIfconfig(parsed_data_ip)
    data_dmi = getDmi()
    parsed_data_dmi = parseData(data_dmi)
    dmi = parseDmi(parsed_data_dmi)
    hostname = getHostname('/etc/sysconfig/network')
    osver = getOsver('/etc/issue')
    cpu = getCpu('/proc/cpuinfo')
    mem = getMemory('/proc/meminfo')
    dic.update(ip)
    dic.update(dmi)
    dic.update(hostname)
    dic.update(osver)
    dic.update(cpu)
    dic.update(mem)
    print dic