> For the complete documentation index, see [llms.txt](https://huataihuang.gitbook.io/cloud-atlas-draft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://huataihuang.gitbook.io/cloud-atlas-draft/virtual/coreos/coreos_architecture.md).

# CoreOS架构

CoreOS组件

* etcd - key-value存储，用于存储实例配置来支持自动更新，高可用，备份和恢复。是当前云原生应用的key value存储的佼佼者
* Clair - 提供在appc和docker容器中的变量分析
* flannel - 虚拟机网络
* rkt - 容器运行时
* fleet - 分布式服务调度


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