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improve understandability (#19544)

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megaredfan 2020-03-08 20:27:34 +08:00 committed by GitHub
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content/zh/docs/concepts/architecture/controller.md
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@ -51,7 +51,7 @@ detail.
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## 控制器模式 {#controller-pattern}
一个控制器至少追踪一种类型的 Kubernetes 资源。这些[对象](/docs/concepts/overview/working-with-objects/kubernetes-objects/)有一个代表期望状态的指定字段。正对这种资源的控制器就是要使他的当前状态接近与期望状态。
一个控制器至少追踪一种类型的 Kubernetes 资源。这些[对象](/docs/concepts/overview/working-with-objects/kubernetes-objects/)有一个代表期望状态的指定字段。控制器负责确保其追踪的资源对象的当前状态接近期望状态。
控制器可能会自行执行操作；在 Kubernetes 中更常见的是一个控制器会发送信息给 {{< glossary_tooltip text="API 服务器" term_id="kube-apiserver" >}}，这会有副作用。看下面这个例子。