背景可用区（Availability Zone，简称 AZ）是指在同一地域内，电力和网络互相独立的物理区域。例如，华北1（青岛）地域支持2个可用区，包括青岛可用区B和青岛可用区C。同一可用区内实例之间的网络延时更小，其用户访问速度更快。将应用部署在多个可用区可以提高应用的可用性，降低故障风险。然而，在实际应用中，有时需要将实例从一个可用区迁移到另一个....

文章 2023-06-05 来自：开发者社区

运维编排系列场景--通过告警触发自动重启CPU使用率高的ECS实例

运维编排(OOS) 简介什么是OOS Operation Orchestration Service，简称OOS，是全面、免费的云上自动化运维平台，提供运维任务的管理和执行。典型使用场景包括：事件驱动运维，批量操作运维，定时运维任务，跨地域运维等，OOS为重要运维场景提供审批，通知等功能。OOS帮您实现标准化运维任务，从而实践运维即代码（Operations&...

文章 2022-02-17 来自：开发者社区

运维编排场景系列-----自动从负载均衡移除停止的ECS实例

场景简介挂载在负载均衡上的ECS实例，存在被意外停止的可能性，若实例意外停止后没有得到及时处理，负载均衡上一直挂载着异常状态的实例，或被动地等待负载均衡的处理异常，这种情况肯定不是我们想要的。通过运维编排服务中事件触发器动作可对您运行中实例进行监控，一旦实例进入停止状态，则立刻进行一些逻辑处理，确保异常实例及时移除。解决方案步骤拆分对ECS实例通过OOS的事件触发器进行有效监控，...

文章 2022-02-17 来自：开发者社区

运维编排场景系列---在ECS实例上运行Ansible-playbook

场景介绍 Ansible是一个简单的自动化运维管理工具，基于Python语言实现，由Paramiko和PyYAML两个关键模块构建，可用于自动化部署应用、配置、编排task(持续交付、无宕机更新等)。本文介绍通过OOS在实例中运行指定OSS中的PlayBook。模板介绍模板内容： FormatVersion: OOS-2019-06-01 Description: Use this tem.....

文章 2022-02-17 来自：开发者社区

运维编排场景系列-----ECS实例系统快照下载到本地

ECS实例的系统快照文件不能直接从云端下载到本地，不过通过OOS的模板可以轻松帮您实现下载数据到本地。解决方案此过程您只需选定要创建系统快照的ECS实例，并准备一个可保存镜像的OSS bucket，剩下工作交给OSS就可以了，当OOS准备完待下载内容后，您单击下载快照的镜像文件即可。OOS主要帮您做了这些，其先对您选定的ECS实例打系统快照，完成后对快照创建镜像，再将镜像导出到OSS的bu.....

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