资产管理 cmdb之ansible 获取服务器硬件、软件等信息

    cmdb抓取服务信息的方式有很多种,可以使用自动化工具saltstack、ansible、puppet,或者使用其它模块直接ssh远程连接抓取服务器信息。这里记录一下用ansible的API接口调用setup模块抓取。

实验使用两台机器

IP 系统 软件
192.168.93.137 centos6.5_x64 ansible 1.9.4
192.168.93.128 centos6.5_x64

两台机器建立好ssh信任后在192.168.93.137上执行

ansible 192.168.93.128 -m setup

几乎可以获取到所有想要的信息,直接处理这些字符串很让人想砸电脑,调用ansible的API接口就方便多了,其实就是用ansible的runner模块调用setup模块来获取结果,返回的是dict字典,处理起来就方便多了。(注意:ansible1.x版本有runner模块,ansible2.x以上就没有runner接口模块,需要看官网)

将其封装成函数保存为test.py,(此处封装借鉴的一位高手,可惜忘了博客地址)

里面的参数根据各自的系统可适当修改

# -*- coding: UTF-8 -*-

import ansible.runner


def get_info(ip):
    data = {}
    runner = ansible.runner.Runner(module_name='setup', module_args='', pattern='all', forks=2)
    datastructure = runner.run()
    sn = datastructure['contacted'][ip]['ansible_facts']['ansible_product_serial']
    host_name = datastructure['contacted'][ip]['ansible_facts']['ansible_hostname']

    description = datastructure['contacted'][ip]['ansible_facts']['ansible_lsb']['description']
    ansible_machine = datastructure['contacted'][ip]['ansible_facts']['ansible_machine']
    sysinfo = '%s %s' % (description, ansible_machine)

    os_kernel = datastructure['contacted'][ip]['ansible_facts']['ansible_kernel']

    cpu = datastructure['contacted'][ip]['ansible_facts']['ansible_processor'][1]
    cpu_count = datastructure['contacted'][ip]['ansible_facts']['ansible_processor_count']
    cpu_cores = datastructure['contacted'][ip]['ansible_facts']['ansible_processor_cores']
    mem = datastructure['contacted'][ip]['ansible_facts']['ansible_memtotal_mb']

    ipadd_in = datastructure['contacted'][ip]['ansible_facts']['ansible_all_ipv4_addresses'][0]
    disk = datastructure['contacted'][ip]['ansible_facts']['ansible_devices']['sda']['size']
    # print sysinfo
    data['sn'] = sn
    data['sysinfo'] = sysinfo
    data['cpu'] = cpu
    data['cpu_count'] = cpu_count
    data['cpu_cores'] = cpu_cores
    data['mem'] = mem
    data['disk'] = disk
    data['ipadd_in'] = ipadd_in
    data['os_kernel'] = os_kernel
    data['host_name'] = host_name

    return data


if __name__ == '__main__':
    data = get_info('')

    import pprint
    pprint.pprint(data)

在192.168.93.137上执行test.py获取192.168.93.128的服务器信息

接着就是结合资产管理平台存入数据库中了

方法、套路有很多:

  1. 写成脚本用crontab定期执行,脚本读取IP列表文件将信息存入数据库(借鉴燕郊大神春哥)

  2. 通过运维平台主动调用脚本写入数据库(借鉴老司机戴总[戴如峰])

此处用第二种,点击“更新”按钮,获取到服务器信息后写入数据库

运维平台展示服务器信息

原理:

      点击更新按钮之后触发ajax,然后将服务器的id号以post方式提交给“/cmdb/postmachineinfo/”接口,此id是服务器在数据库表中的id号,

运维平台接口收到请求后拿该id号去数据库中查询服务器的ip,再调用封装有

ansible API接口的脚本查询服务器信息,然后写入数据库,最后给前端返回

“成功”的信息。

前端更新按钮:

<button type="button" id="server_update_{{server.id}}" class="btn btn-xs btn-primary">更新</button>

按钮的id值最后一位就是192.168.93.128在数据库表中的id号

ajax提交信息到“/cmdb/postmachineinfo/”

/*
*更新机器信息
*/
$("table tbody tr td button[id^='server_update']").click(function(){
   var id_val = $(this).attr('id'); //获取更新按钮id值
   var id = id_val.split('_')[2]; //获取id值的最后一位
    var data = {"id":id};
    data = JSON.stringify(data);
    var url = "/cmdb/postmachineinfo/";

    $.get(url,{data:data},function(msg){
       ajax_callback(msg);
     });
});

/*
*ajax get callback
*/
function ajax_callback(msg){
    var msg =  $.parseJSON(msg);
    var index = layer.alert(msg, { //layer控件提示信息
        skin: 'layui-layer-molv' //样式类名
    },function(){
        if (msg == '成功'){
            window.location="/cmdb/server_list/";
        }
        else{
           layer.close(index)
        }
    });
}

后端接口“/cmdb/postmachineinfo/”

@login_required
def postmachineinfo(request):
    # 提交服务器信息
    response = HttpResponse()
    data = json.loads(request.GET.get('data', ''))
    id = int(data['id'])
    print 'update--->'
    server = Server.objects.get(pk=id)
    data = get_info(server.in_ip)
    server.os_version = data['sysinfo']
    server.host_name = data['host_name']
    server.os_kernel = data['os_kernel']
    server.cpu_model = data['cpu']
    server.cpu_count = data['cpu_count']
    server.cpu_cores = data['cpu_cores']
    server.mem = data['mem']
    server.disk = data['disk']
    server.status = True
    server.max_open_files = get_ulimit(server.in_ip)
    server.uptime = get_uptime(server.in_ip)
    server.save()

    # set_service_port(server)  # 设置服务端口信息
    response.write(json.dumps(u'成功'))
    return response

 

192.168.93.128上的服务和端口信息,原理一样,通过ansible API远程执行netstat -ntpl命令,

获取信息存入数据库

posted @ 2016-10-05 11:04  黄小雪  阅读(14468)  评论(8编辑  收藏  举报