1.项目的目录和文件
.
├── CMDBproject
│ ├── asgi.py
│ ├── __init__.py
│ ├── __pycache__
│ │ ├── __init__.cpython-36.pyc
│ │ ├── settings.cpython-36.pyc
│ │ ├── urls.cpython-36.pyc
│ │ └── wsgi.cpython-36.pyc
│ ├── settings.py
│ ├── urls.py
│ └── wsgi.py
├── db.sqlite3
├── hostinfo
│ ├── admin.py
│ ├── apps.py
│ ├── id_rsa
│ ├── __init__.py
│ ├── migrations
│ │ ├── 0001_initial.py
│ │ ├── __init__.py
│ │ └── __pycache__
│ │ ├── 0001_initial.cpython-36.pyc
│ │ └── __init__.cpython-36.pyc
│ ├── models.py
│ ├── __pycache__
│ │ ├── admin.cpython-36.pyc
│ │ ├── __init__.cpython-36.pyc
│ │ ├── models.cpython-36.pyc
│ │ ├── urls.cpython-36.pyc
│ │ ├── utils.cpython-36.pyc
│ │ └── views.cpython-36.pyc
│ ├── tests.py
│ ├── urls.py
│ ├── utils.py
│ └── views.py
├── manage.py
├── __pycache__
│ └── manage.cpython-36.pyc
└── templates
└── hostinfo
└── hostscan.html
2.建立Django项目 名字为CMDBproject，然后建立子应用
pip3 manage.py startApp hostinfo
将子应用添加道setting.py文件中
（3）数据库后台admin的管理 用的是sqlite数据库
首先在modules.py中写入数据库中要导入的内容 相当于ORM
from django.db import models
class Server(models.Model):
"""服务器设备"""
sub_asset_type_choice = (
(0, 'PC服务器'),
(1, '刀片机'),
(2, '小型机'),
)
created_by_choice = (
('auto', '自动添加'),
('manual', '手工录入'),
)
# Create your models here.
sub_asset_type = models.SmallIntegerField(choices=sub_asset_type_choice,
default=0, verbose_name="服务器类型")
created_by = models.CharField(choices=created_by_choice, max_length=32,
default='auto', verbose_name="添加方式")
hosted_on = models.ForeignKey('self', related_name='hosted_on_server',
blank=True, null=True, verbose_name="宿主机",
on_delete=models.CASCADE) # 虚拟机专用字段
IP = models.CharField('IP地址', max_length=30, default='')
MAC = models.CharField('Mac地址', max_length=200, default='')
model = models.CharField(max_length=128, null=True, blank=True,
verbose_name='服务器型号')
hostname = models.CharField(max_length=128, null=True, blank=True,
verbose_name="主机名")
os_type = models.CharField('操作系统类型', max_length=64, blank=True,
null=True)
os_distribution = models.CharField('发行商', max_length=64, blank=True,
null=True)
os_release = models.CharField('操作系统版本', max_length=64, blank=True,
null=True)
def __str__(self):
return '%s-%s' % (self.id, self.hostname)
class Meta:
verbose_name = '服务器'
verbose_name_plural = "服务器"根据ORM(对象关系映射)将面向对象形式的模型进行迁移， 生成中间代码
python manage.py makemigrations将生成的迁移文件转成SQL语句并执行SQL语句， 创建对应的数据库及数据库表
python manage.py migrate 查看sqlite数据库 注意需要提前建立该数据库
创建后台管理的超级用户
python manage.py createsuperuser运行项目python manage.py runserver 查看管理
此时看不到添加的数据库 需要在admin.py文件中加入
from django.contrib import admin
from .models import Server
admin.site.register(Server)
（4）前台的管理
需求:
1. 用户访问http://ip/hostscan/返回一个html页面表单[填写的是需要扫描的主机IP或者网段，用逗号分隔开](开始扫描按钮)
2. 用户填写好网段/IP之后，将填写的信息提交给服务器路由处理(/hostscan/)POST方法;
第一步： 配置路由
配置总的路由：
#/root/PycharmProjects/CMDBproject/CMDBproject/urls.py
from django.contrib import admin
from django.urls import path,include
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('hostinfo.urls')),
]
配置子路由：
#/root/PycharmProjects/CMDBproject/hostinfo/urls.py
from django.contrib import admin
from django.urls import path
from hostinfo import views
urlpatterns = [
path('hostscan/', views.hostscan,name='hostscan'),
]第二步：配置视图函数 由于该项目设计的功能较多 在写视图函数时在hostinfo目录下建立一个新的utlis.py 文件
# utils.py
import nmap
import telnetlib
import re
import paramiko
def get_active_hosts(host='172.25.254.20'):
"""Get IP is active or get network how many server is active"""
# 实例化对象, portScanner()类用于实现对指定主机进行端口扫描
nm = nmap.PortScanner()
# 以指定方式扫描指定主机或网段的指定端口
result = nm.scan(hosts=host, arguments='-n -sP')
#print("扫描结果: ", result)
# 返回nmap扫描的主机清单，格式为列表类型
#print("主机清单: ", nm.all_hosts())
return nm.all_hosts()
def is_ssh_up(host='172.25.254.20', port=22, timeout=5):
try:
# 实例化对象
tn = telnetlib.Telnet(host=host, port=port, timeout=timeout)
# read_until读取直到遇到了换行符或超时秒数。默认返回bytes类型，通过decode方法解码为字符 串。
tn_result = tn.read_until(b"\n", timeout=timeout).decode('utf-8')
# 通过正则匹配且忽略大小写， 寻找是否ssh服务开启。
ssh_result = re.search(pattern=r'ssh', string=tn_result, flags=re.I)
except Exception as e:
print("%s ssh is down, Beacuse %s" % (host, str(e)))
return False
else:
# 如果能匹配到内容， 说明ssh服务开启， 是Linux服务器.
return True if ssh_result else False
def login_ssh_key(hostname='172.25.254.20', port=22, username='root',
private_key='/root/PycharmProjects/CMDBproject/hostinfo/id_rsa', command='df -h'):
# 0. Read private key file
pkey = paramiko.RSAKey.from_private_key_file(private_key)
# 1. Instance a Object
client = paramiko.SSHClient()
# 5.(tips) When first ssh connect server, have a question (Yes|no),
# So we want auto answer
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
# 2. connect Server
client.connect(hostname, port, username, pkey=pkey)
# 3. execute command
stdin, stdout, stderr = client.exec_command(command)
# 4. print stdout result
return stdout.read().decode('utf-8')
if __name__ == '__main__':
# print(get_active_hosts())
# print(is_ssh_up(host='192.168.1.20'))
print(login_ssh_key())
#views.py
from django.shortcuts import render
from django.http import HttpResponse
from hostinfo.models import Server
from hostinfo.utils import get_active_hosts, is_ssh_up, login_ssh_key
from CMDBproject.settings import commands
# Create your views here.
"""
需求:
1. 用户访问http://ip/hostscan/返回一个html页面
表单[填写的是需要扫描的主机IP或者网段，用逗号分隔开](开始扫描按钮)
2. 用户填写好网段/IP之后，将填写的信息提交给服务器路由处理(/hostscan/)
POST方法;
"""
def hostscan(request):
# print(request.method)
if request.method == 'POST':
# how to get form post data
# {'scanhosts': '172.25.254.250,172.25.254.0/24'}
# print(request.POST)
"""
# 1. Get Dictionary key
request.POST.get('scanhosts')
# 2. split ip and network
request.POST.get('scanhosts')[0].split(',')
**
s = "172.25.254.250,172.25.34.0/24"
s.split(',')
Out[3]: ['172.25.254.250', '172.25.34.0/24']
"""
# ['172.25.254.250', '172.25.34.0/24']
scanhosts = request.POST.get('scanhosts').split(',')
servers = []
for scanhost in scanhosts:
print("正在扫描%s......" % (scanhost))
# 获取所有可以ping通的主机IP
active_hosts = get_active_hosts(scanhost)
for host in active_hosts:
if is_ssh_up(host):
# Instance Server(ORM)===> MySQL
# If ip exists ,How to manage?
server = Server()
server.IP = host
"""
commands = {
'hostname': 'hostname',
'os_type': 'uname',
'os_distribution': 'dmidecode -s system-manufacturer',
'os_release': 'cat /etc/redhat-release',
'MAC': 'cat /sys/class/net/`[^vtlsb]`*/address',
}
"""
for command_name, command in commands.items():
# command_name="os_type", command="uname"
result = login_ssh_key(hostname=host, command=command)
# set server object attribute
setattr(server, command_name, result)
# save to mysql
server.save()
# Now Scan host info
servers.append(server)
return render(request, "hostinfo/hostscan.html", {'servers': servers})
return render(request, 'hostinfo/hostscan.html')前端文件的显示 在templates目录底下新建html文件
实现的一些command需要在settings文件中加入
<!DOCTYPE html>
<html>
<head>
<title>Scan Host</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<!-- 新 Bootstrap 核心 CSS 文件 -->
<link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<!-- HTML5 Shiv 和 Respond.js 用于让 IE8 支持 HTML5元素和媒体查询 -->
</head>
<body>
<nav class="navbar navbar-inverse" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="/">CMDB</a>
</div>
<div>
<ul class="nav navbar-nav">
<li class="active"><a href="/hostscan/">Scanhost</a></li>
</ul>
</div>
</div>
</nav>
<div class="container">
<div class="row">
<div class="col-sm-6 col-sm-offset-3">
<h1>Scan Host</h1>
<form action="/hostscan/" method="post">
{% csrf_token %}
<input type="text" name="scanhosts"
width="800px"
placeholder="eg:172.25.254.0/24,192.168.0.0/24">
<input type="submit" value="submit">
</form>
<br/>
{% if servers %}
<table class="table table-striped table-hover">
<tr>
<td>ID</td>
<td>IP</td>
<td>hostname</td>
<td>os_distribution</td>
</tr>
{% for server in servers %}
<tr>
<td>{{ server.id }}</td>
<td>{{ server.IP }}</td>
<td>{{ server.hostname }}</td>
<td>{{ server.os_distribution }}</td>
</tr>
{% endfor %}
</table>
{% endif %}
</div>
</div>
</div>
<!-- jQuery (Bootstrap 的 JavaScript 插件需要引入 jQuery) -->
<!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
</body>
</html>最后的测试效果
输入要监控的资产主机ip
详细的代码文件参看 GitHub· https://github.com/Summerskq/CMDBproject