用python+django+twistd 开发一个属于自己的运维系统

开源的运维系统不少，比如nagios、zabbix、cati等等，但是遇到自己个性化的运维需求的时候，总是显的力不从心！最近在学习python，所以就考虑用python+django+twisted来定做一个完全个性化的运维系统。

运维系统有几个主要的功能：监控、分析、报警、更甚者直接根据分析的结果进行反应操作。而以上几点通过上述的框架可以比较容易的实现。

下面上图说明：

使用freemind整理了下思路：

下面是一些代码段，完整的代码下载见文档底部：

Server：

#!/usr/bin/env python
#coding:utf-8
__author__ = 'dwj'


from twisted.internet.protocol import ServerFactory
from twisted.protocols import basic
import cx_Oracle
from twisted.application import service, internet



class Mornitor_Protocol(basic.LineReceiver):

    def __init__(self):
    #
        _oracle_conn=cx_Oracle.connect('xxxx', 'xxxx', '192.168.7.17/test', threaded=True)
        _oracle_conn.autocommit = True
        self.cur = _oracle_conn.cursor()
        self._oracle_conn=_oracle_conn


    def ruku(self, line):
        ip=self.transport.getPeer().host
        #获取客户端IP
        line=line.split(':::')
        #使用：：：分割原始数据
        if line[1] in ['cpu', 'mem', 'disk', 'tcp', 'net', 'process_down']:
        #根据数据包头来确定使用insert还是update，当是tcp包头的时候插入，其余的更新
            if line[1] == 'tcp':
                sql = "insert into MORNITOR_BASICINFO (ipadd,time,tcp) values (\'%s\',\'%s\',\'%s\')"%(ip,line[0],line[3])
                print sql
                self.cur.execute(sql)

            else:
                line_again = line[3].split('::')
                sql = 'update MORNITOR_BASICINFO set %s=\'%s\',%s=\'%s\' where ipadd=\'%s\' and time=\'%s\''%(line[1],line_again[0],line[2],line_again[1],ip,line[0])
                print sql
                self.cur.execute(sql)

    def connectionMade(self):
        print 'Connected!'

    def lineReceived(self, line):
        print line
        self.ruku(line)
        #接受到数据之后执行入库操作！
    def connectionLost(self, reason='connectionDone'):
        self._oracle_conn.close()
        print 'The db is close... ok!'


class Mornitor_Factory(ServerFactory):
    #还没想好要初始化什么
    def __init__(self,service):
        self.service = service

    protocol = Mornitor_Protocol


class Fish_Service(service.Service):

    def __init__(self):
        pass

    def startService(self):
        service.Service.startService(self) #什么都不做，开始服务

    # def stopService(self):
    # return self._port.stopListening()



#配置参数
port = 10000
iface = '127.0.0.1'



top_server = service.MultiService() #定义服务容器

fish_server = Fish_Service() #实例化我们的服务
fish_server.setServiceParent(top_server) #把自定义的服务加入到服务容器

factory = Mornitor_Factory(Fish_Service) #工厂化服务

tcp_server = internet.TCPServer(port, factory, interface=iface) #定义tcp服务
tcp_server.setServiceParent(top_server) #把tcp服务加入到服务容器

application = service.Application('Fish_Service') #给应用起个名字
top_server.setServiceParent(application) #把服务容器丢到应用中去

Client端

from twisted.protocols import basic
from twisted.internet import protocol, defer, task
import Get_basic_info_2 as Huoqu
import guardian as shouhu
import time
from twisted.application import service, internet


class Monitor_Protocol(basic.LineReceiver):
    #自定义客户端和服务端的连接协议，从basic的line继承

    def __init__(self):
        #
        pass

    @staticmethod
    def huoqu_shuju():
        #定义一个函数获取本机的一些状态
        now = str(time.strftime('%Y-%m-%d %H:%M:%S'))

        def add_tag(source, tag1, tag2 = 'none'):
        #定义格式化字符串函数
            return ':::'.join([now, tag1, tag2, source])
            #使用：：：分隔时间、简单信息、详细信息、原始信息

        tcp = add_tag(Huoqu.net_tcp(), 'tcp')
        cpu = add_tag(Huoqu.cpu(), 'cpu', 'cpu_detail')
        mem = add_tag(Huoqu.mem(), 'mem', 'mem_detail')
        disk = add_tag(Huoqu.disk_usage(), 'disk', 'disk_detail')
        net = add_tag(Huoqu.net_rate(), 'net', 'net_detail')
        process = add_tag(shouhu.check_alive(), 'process_down', 'process_alived')
        result = (tcp, cpu, mem, disk, net, process, )
        d = defer.Deferred()
        #使用defered返回结果
        d.callback(result)
        return d

    def xunhuan(self, list):
    #定义循环发送函数
        for i in list:
            self.sendLine(i)

    def fasong(self):
    #定义程序运行顺序，取得信息后用callback交给发送函数发送
        self.huoqu_shuju().addCallback(self.xunhuan)

    def loop(self):
    #使用twist内置的循环函数定义几秒监控数据传送到服务端
        l = task.LoopingCall(self.fasong)
        l.start(1)

    def connectionMade(self):
    #覆盖协议的connectmade函数，定义于服务端的连接建立后开始循环
        print 'Connected!......ok!'
        self.loop()

    def lineReceived(self, line):
    #必须覆盖接受函数，否则twist会报not importent错误！
        pass


class Moinitor_client_factory(protocol.ReconnectingClientFactory):

    def __init__(self, service):
    #还没想要要写什么
        self.service = service
    protocol = Monitor_Protocol


class Client_Service(service.Service):

    def __init__(self):
        pass

    def startService(self):
        service.Service.startService(self)


#配置文件开始
port = 10000
host = '127.0.0.1'

#守护进程
top_service = service.MultiService() #定义服务容器

client_service = Client_Service() #实例化服务类
client_service.setServiceParent(top_service) #把自己定义的服务丢到服务容器中

factory = Moinitor_client_factory(client_service) #定义服务工厂化

tcp_service = internet.TCPClient(host, port, factory) #定义tcp连接的服务
tcp_service.setServiceParent(top_service) #把tcp服务丢到服务容器中去

application = service.Application('Fish_Service') #定义应用名字
top_service.setServiceParent(application) #把服务容器丢到应用中去

一些自定义监控程序是否存活的脚本：

program = {'nginx': ['/opt/nginx/logs/nginx.pid', '/opt/nginx/sbin/nginx'],
            'rsync-C': ['/var/run/rsyncd.pid', 'rsync --daemon'],
            }


def main():
    for k in program:
        a = get_pid(k, program[k][0])
        if isinstance(a, tuple):
            print '%s is not running!' % k
            print 'Start the program by Horland_guardian!'
            subprocess.call(program[k][1], shell=True)
        else:
            print 'The %s is running!' % k


def check_alive():
    l_lived = []
    l_downed = []
    for k in program:
        a = get_pid(k, program[k][0])
        if isinstance(a, tuple):
            l_downed.append(k)
        else:
            l_lived.append(k)
    process_alived = ' '.join(l_lived)
    process_down = ' '.join(l_downed)

    return '::'.join([process_down, process_alived])

django的使用目前只需要使用到admin模块就可以。

下面是一些代码段：

model

class BasicInfo(models.Model):
    ipadd = models.IPAddressField(verbose_name = u'IP地址')
    time = models.CharField(max_length=50, verbose_name = u'时间')
    cpu = models.CharField(max_length=255, blank=True, verbose_name = u'CPU%')
    cpu_detail = models.CharField(max_length=255, blank=True, verbose_name = u'CPU详情')
    mem = models.CharField(max_length=255, blank=True, verbose_name = u'内存%')
    mem_detail = models.CharField(max_length=255, blank=True, verbose_name = u'内存详情')
    disk = models.CharField(max_length=255, blank=True, verbose_name = u'磁盘%')
    disk_detail = models.CharField(max_length=255, blank=True, verbose_name = u'磁盘详情')
    net = models.CharField(max_length=255, blank=True, verbose_name = u'流量 bytes/s')
    net_detail = models.CharField(max_length=1000, blank=True, verbose_name = u'流量详情')
    tcp = models.CharField(max_length=255, blank=True, verbose_name = u'tcp连接状态')
    process_down = models.CharField(max_length=255, blank=True, verbose_name = u'DOWN-进程')
    process_alived = models.CharField(max_length=255, blank=True, verbose_name = u'Process_UP')

    def Process_DOWN(self):
        return '<span style="color: #%s;">%s</span>' % ('ff0000', self.process_down) #拓机的进程用红色标识
    Process_DOWN.allow_tags = True

注册到admin

class BasicInfo_admin(admin.ModelAdmin):

    list_display = ('time', 'cpu', 'cpu_detail', 'mem', 'mem_detail', 'disk', 'disk_detail', 'net', 'net_detail', 'tcp', 'Process_DOWN', 'process_alived')
    list_filter = ('ipadd', )
admin.site.register(BasicInfo, BasicInfo_admin)

freemind整理的思路中还有一些功能没有实现，目前这个只能算个简单的demon吧，但是基本实现了监控的目的。欢迎大家给我留言！

下面上个django的admin界面截图吧！

代码下载

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原文链接