65 lines
2.3 KiB
Markdown
65 lines
2.3 KiB
Markdown
---
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title: 控制器（Controller）
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id: controller
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date: 2018-04-12
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full_link: /zh/docs/concepts/architecture/controller/
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short_description: >
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控制器通过 apiserver 监控集群的公共状态，并致力于将当前状态转变为期望的状态。
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aka:
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tags:
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- architecture
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- fundamental
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---
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<!--
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---
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title: Controller
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id: controller
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date: 2018-04-12
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full_link: /docs/concepts/architecture/controller/
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short_description: >
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A control loop that watches the shared state of the cluster through the apiserver and makes changes attempting to move the current state towards the desired state.
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aka:
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tags:
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- architecture
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- fundamental
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---
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-->
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<!--
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In Kubernetes, controllers are control loops that watch the state of your
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{{< glossary_tooltip term_id="cluster" text="cluster">}}, then make or request
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changes where needed.
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Each controller tries to move the current cluster state closer to the desired
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state.
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-->
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在 Kubernetes 中，控制器通过监控{{< glossary_tooltip text="集群" term_id="cluster" >}}
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的公共状态，并致力于将当前状态转变为期望的状态。
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<!--more-->
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<!--
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Controllers watch the shared state of your cluster through the
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{{< glossary_tooltip text="apiserver" term_id="kube-apiserver" >}} (part of the
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{{< glossary_tooltip term_id="control-plane" >}}).
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-->
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控制器（{{< glossary_tooltip text="控制平面" term_id="control-plane" >}}的一部分）
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通过 {{< glossary_tooltip text="apiserver" term_id="kube-apiserver" >}} 监控你的集群中的公共状态。
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<!--
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Some controllers also run inside the control plane, providing control loops that
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are core to Kubernetes' operations. For example: the deployment controller, the
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daemonset controller, the namespace controller, and the persistent volume
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controller (and others) all run within the
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{{< glossary_tooltip term_id="kube-controller-manager" >}}.
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-->
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其中一些控制器是运行在控制平面内部的，对 Kubernetes 来说，他们提供核心控制操作。
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比如：部署控制器（deployment controller）、守护控制器（daemonset controller）、
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命名空间控制器（namespace controller）、持久化数据卷控制器（persistent volume
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controller）（等）都是运行在 {{< glossary_tooltip text="kube-controller-manager" term_id="kube-controller-manager" >}} 中的。
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