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01. 背景介绍

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对于企业的生产环境而言，监控与报警不可或缺的，完善的监控与及时的报警和自动化处理，可以帮助企业快速定位并解决问题，从而减少经济损失。

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腾讯云事件总线（EventBridge）是一款安全、稳定、高效的无服务器事件管理平台。事件中心的事件总线可以接收来自您自己的应用程序、软件即服务（SaaS）和腾讯云服务的实时事件及相关数据流，通过集成消息推送和 SCF 云函数，实现告警信息的实时通知和自动化处理。

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本文以服务器异常为例，为您介绍当云服务器产生告警事件后，如何基于 EventBridge 事件总线和 SCF 云函数，实现告警消息的实时推送和硬盘快照的自动回滚，完成自动化运维架构的快速搭建。

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02. 架构设计

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整体架构设计如图，从图上可以看出，当云服务器某台机器出现异常告警， CVM 会自动产生告警事件并主动推送给 EB，经过 EB 绑定的告警规则筛选后，完成到通知渠道的消息触达及时通知到用户，同时触发云函数，以调用 API 的方式完成硬盘快照的快速回滚，保证业务及时恢复。

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03. 基本步骤

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  1. 登录云函数控制台新建云函数，通过调用 API 的方式，完成服务器故障后自动处理流程的函数代码编写
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云服务器关机接口：https://cloud.tencent.com/document/product/213/15743

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快照回滚接口：https://cloud.tencent.com/document/product/362/15643

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  1. 登录 EventBridge 控制台，配置告警规则
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  1. 以「云服务器运行异常」事件告警配置为例，您可以选择指定的事件告警类型，也可以选择全部告警事件，详细事件匹配规则请参见 管理事件规则
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  1. 配置推送目标
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为了满足自动化处理和消息推送两部分能力，对于上述规则，我们需要同时配置消息推送和云函数两个投递目标

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  1. 告警链路测试
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配置完成后，回到事件集控制台，选择刚刚已绑定的事件集，单击发送事件，可以选择已绑定的事件规则模版，单击发送进行测试，如果同时收到了推送消息并自动进行回滚，即可确认您的业务故障自动化运维架构已完成搭建。

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注：测试模版里只展示 data 字段里的内容，其它字段已固定，无法自定义修改。

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识别下方 👇 二维码，进入「事件总线」交流群

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传送门：

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欢迎访问：Serverless 中文网，您可以在 最佳实践 里体验更多关于 Serverless 应用的开发！

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