创建 SimpleCMDB 项目：
[root@localhost ~]$ django-admin.py startproject SimpleCMDB
创建应用，收集主机信息：
1[root@localhost ~]$ cd SimpleCMDB/ 2[root@localhost SimpleCMDB]$ python manage.py startapp hostinfo
修改配置：
1[root@localhost SimpleCMDB]$ cat SimpleCMDB/settings.py 2 3INSTALLED_APPS = ( # 添加应用 4 ...... 5 'hostinfo', 6) 7 8MIDDLEWARE_CLASSES = ( # 禁用CSRF，使得可以使用POST传递数据 9 ...... 10 #'django.middleware.csrf.CsrfViewMiddleware', 11) 12 13LANGUAGE_CODE = 'zh-cn' # 修改语言 14 15TIME_ZONE = 'Asia/Shanghai' # 修改时区
启动开发服务器：
[root@localhost SimpleCMDB]$ python manage.py runserver 0.0.0.0:8000
定义数据模型：
1[root@localhost SimpleCMDB]$ cat hostinfo/models.py 2from django.db import models 3 4# Create your models here. 5 6class Host(models.Model): 7 hostname = models.CharField(max_length=50) 8 ip = models.IPAddressField() 9 vendor = models.CharField(max_length=50) 10 product = models.CharField(max_length=50) 11 sn = models.CharField(max_length=50) 12 cpu_model = models.CharField(max_length=50) 13 cpu_num = models.IntegerField() 14 memory = models.CharField(max_length=50) 15 osver = models.CharField(max_length=50)
同步到数据库：
1[root@localhost SimpleCMDB]$ python manage.py validate 2[root@localhost SimpleCMDB]$ python manage.py syncdb
将数据模型注册到管理后台：
1[root@localhost SimpleCMDB]$ cat hostinfo/admin.py 2from django.contrib import admin 3from hostinfo.models import Host 4 5# Register your models here. 6 7class HostAdmin(admin.ModelAdmin): 8 list_display = [ 9 'hostname', 10 'ip', 11 'cpu_model', 12 'cpu_num', 13 'memory', 14 'vendor', 15 'product', 16 'osver', 17 'sn', 18 ] 19 20admin.site.register(Host, HostAdmin)
通过 POST 方法收集主机信息到 SimpleCMDB：
1[root@localhost SimpleCMDB]$ cat SimpleCMDB/urls.py 2.... 3urlpatterns = patterns('', 4 .... 5 url(r'^hostinfo/collect/$', 'hostinfo.views.collect'), 6) 7 8[root@localhost SimpleCMDB]$ cat hostinfo/views.py 9from django.shortcuts import render 10from django.http import HttpResponse 11from hostinfo.models import Host 12 13# Create your views here. 14 15def collect(request): 16 if request.POST: 17 hostname = request.POST.get('hostname') 18 ip = request.POST.get('ip') 19 osver = request.POST.get('osver') 20 vendor = request.POST.get('vendor') 21 product = request.POST.get('product') 22 cpu_model = request.POST.get('cpu_model') 23 cpu_num = request.POST.get('cpu_num') 24 memory = request.POST.get('memory') 25 sn = request.POST.get('sn') 26 27 host = Host() 28 host.hostname = hostname 29 host.ip = ip 30 host.osver = osver 31 host.vendor = vendor 32 host.product = product 33 host.cpu_model = cpu_model 34 host.cpu_num = cpu_num 35 host.memory = memory 36 host.sn = sn 37 host.save() 38 39 return HttpResponse('OK') 40 41 else: 42 return HttpResponse('No Data!') 43 44[root@localhost ~]$ cat /data/script/getHostInfo.py 45#!/usr/bin/env python 46#-*- coding:utf-8 -*- 47 48import urllib, urllib2 49from subprocess import Popen, PIPE 50 51# 获取IP地址 52def getIP(): 53 p = Popen('ifconfig', stdout=PIPE, shell=True) 54 data = p.stdout.read().split('\n\n') 55 for lines in data: 56 if lines.startswith('lo'): 57 continue 58 if lines: 59 ip = lines.split('\n')[1].split()[1].split(':')[1] 60 break 61 62 return ip 63 64 65# 获取主机名 66def getHostname(): 67 p = Popen('hostname', stdout=PIPE, shell=True) 68 hostname = p.stdout.read().strip() 69 return hostname 70 71 72# 获取操作系统版本 73def getOSVersion(): 74 with open('/etc/issue') as fd: 75 data = fd.read().split('\n')[0] 76 osVer = data.split()[0] + ' ' + data.split()[2] 77 78 return osVer 79 80 81# 获取服务器硬件信息 82def getHardwareInfo(name): 83 cmd = ''' dmidecode --type system | grep "%s" ''' % name 84 p = Popen(cmd, stdout=PIPE, shell=True) 85 hardwareInfo = p.stdout.read().split(':')[1].strip() 86 return hardwareInfo 87 88 89# 获取CPU型号 90def getCPUModel(): 91 with open('/proc/cpuinfo') as fd: 92 for line in fd.readlines(): 93 if line.startswith('model name'): 94 cpuModel = line.split()[3].split('(')[0] 95 break 96 97 return cpuModel 98 99 100# 获取CPU核数 101def getCPUNum(): 102 with open('/proc/cpuinfo') as fd: 103 for line in fd.readlines(): 104 if line.startswith('cpu cores'): 105 cpuNum = line.split()[3] 106 break 107 108 return cpuNum 109 110 111# 获取物理内存大小 112def getMemorySize(): 113 with open('/proc/meminfo') as fd: 114 memTotal = fd.readline().split()[1] 115 116 memSize = str(int(memTotal)/1024) + 'M' 117 return memSize 118 119 120if __name__ == '__main__': 121 hostInfo = {} 122 hostInfo['ip'] = getIP() 123 hostInfo['hostname'] = getHostname() 124 hostInfo['osver'] = getOSVersion() 125 hostInfo['vendor'] = getHardwareInfo('Manufacturer') 126 hostInfo['product'] = getHardwareInfo('Product Name') 127 hostInfo['sn'] = getHardwareInfo('Serial Number') 128 hostInfo['cpu_model'] = getCPUModel() 129 hostInfo['cpu_num'] = getCPUNum() 130 hostInfo['memory'] = getMemorySize() 131 132 data = urllib.urlencode(hostInfo) # 通过POST方法传递数据 133 request = urllib2.urlopen('http://192.168.216.128:8000/hostinfo/collect/', data) 134 print(request.read()) 135 136[root@localhost ~]$ python /data/script/getHostInfo.py # 如果想收集其他主机信息，直接在其他主机跑这个脚本即可 137OK
主机分组管理：
1[root@localhost SimpleCMDB]$ cat hostinfo/models.py # 创建模型，添加一张主机组的表 2from django.db import models 3 4.... 5 6class HostGroup(models.Model): 7 group_name = models.CharField(max_length=50) # 组名，使用的字段类型是CharField 8 group_members = models.ManyToManyField(Host) # 组成员，注意使用的字段及字段参数 9 10[root@localhost SimpleCMDB]$ python manage.py validate 11[root@localhost SimpleCMDB]$ python manage.py syncdb 12 13[root@localhost SimpleCMDB]$ cat hostinfo/models.py # 注册模型 14from django.db import models 15 16# Create your models here. 17 18class Host(models.Model): 19 hostname = models.CharField(max_length=50) 20 ip = models.IPAddressField() 21 vendor = models.CharField(max_length=50) 22 product = models.CharField(max_length=50) 23 sn = models.CharField(max_length=50) 24 cpu_model = models.CharField(max_length=50) 25 cpu_num = models.IntegerField() 26 memory = models.CharField(max_length=50) 27 osver = models.CharField(max_length=50) 28 29 def __str__(self): 30 return self.ip 31 32class HostGroup(models.Model): 33 group_name = models.CharField(max_length=50) 34 group_members = models.ManyToManyField(Host)
如下，当我们多次使用指定脚本收集主机信息时，如果数据库里有记录了，它还是会添加一条相同的记录：
因此我们需要修改一下视图函数，加个判断：
1[root@localhost SimpleCMDB]$ cat hostinfo/views.py 2from django.shortcuts import render 3from django.http import HttpResponse 4from hostinfo.models import Host 5 6# Create your views here. 7 8def collect(request): 9 if request.POST: 10 hostname = request.POST.get('hostname') 11 ip = request.POST.get('ip') 12 osver = request.POST.get('osver') 13 vendor = request.POST.get('vendor') 14 product = request.POST.get('product') 15 cpu_model = request.POST.get('cpu_model') 16 cpu_num = request.POST.get('cpu_num') 17 memory = request.POST.get('memory') 18 sn = request.POST.get('sn') 19 20 try: 21 host = Host.objects.get(sn=sn) # 查询数据库，查看是否有记录，如果有就重写记录，没有就添加记录 22 except: 23 host = Host() 24 25 host.hostname = hostname 26 host.ip = ip 27 host.osver = osver 28 host.vendor = vendor 29 host.product = product 30 host.cpu_model = cpu_model 31 host.cpu_num = cpu_num 32 host.memory = memory 33 host.sn = sn 34 host.save() 35 36 return HttpResponse('OK') 37 38 else: 39 return HttpResponse('No Data!')