CMDB之数据采集

api
    - URL
    - 发送数据格式
    - 返回值
agent 
    - 采集数据,发送数据
好处:
    - 简单
    - 采集速度快,响应速度快
坏处：
    - 每台agent装的插件多,性能损耗严重
    - 更新需要更新每台agent服务器

####server

from django.shortcuts import render,HttpResponse

# Create your views here.

def asset(request):
    if request.method == "POST":
        print(request.POST)
        # 写入到数据
        return HttpResponse('1002')
    else:
        return HttpResponse('姿势不对')


####agent
import subprocess
import requests

v1 = subprocess.getoutput("ifconfig")
value1 = (v1[51:55])

v2 = subprocess.getoutput("dir")
value2 = (v2[14:20])

url = "http://127.0.0.1:8000/asset.html"

response = requests.post(url,data={"k1":value1,"k2":value2})
print(response.text)

#ssh方式
    - fabric(本质是Paramiko)
    - ansible(本质是Paramiko)
    - Paramiko
 
 
#Paramiko模块
 
原理: Paramiko中控机远程连接服务器,执行命令,获取结果,将结果发送Api
应用场景：服务器少,ssh可以忽略 
 
好处
   - 无需Agent
坏处
   - 连接客户机时每次需要ssh连接,速度慢
 
 
http://www.cnblogs.com/wupeiqi/articles/5095821.html

##server

from django.shortcuts import render,HttpResponse

# Create your views here.

def asset(request):
    if request.method == "POST":
        print(request.POST)
        # 写入到数据
        return HttpResponse('1002')
    else:
        return HttpResponse('姿势不对')


##Paramiko中控机


import paramiko
import requests

# 创建SSH对象
ssh = paramiko.SSHClient()

# 允许连接不在know_hosts文件中的主机
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# 连接服务器
ssh.connect(hostname='10.37.129.3', port=22, username='root', password="123456")

# 执行命令
stdin, stdout, stderr = ssh.exec_command('ifconfig')

# 获取命令结果
result = stdout.read()[0:20]

# 关闭连接
ssh.close()

url = "http://127.0.0.1:8000/asset.html"

response = requests.post(url,data={"k1":result})
print(response.text)

shell >> salt 'c2.salt.com' cmd.run  'ifconfig'

master
>>
import salt.client
local = salt.client.LocalClient()
local.cmd('*', 'cmd.run', ['uptime'])

import salt.client
local = salt.client.LocalClient()
t = 0
jid = local.cmd_async('*', 'cmd.run', ['uptime'])
while not local.get_cache_returns(jid):
    time.sleep(1)
    if t == 8:
        print 'Connection Failed!'
        break
    else:
        t+=1
print local.get_cache_returns(jid)

import salt.client
caller = salt.client.Caller()
caller.sminion.functions['cmd.run']('ls -l')

import salt.client
caller = salt.client.Caller()
caller.sminion.functions['grains.items']  #grains.items代表获取全部的grains信息
caller.sminion.functions['grains.item']('os') #想要特定的grains信息用grains.item然后在后面指定