113 lines
3.6 KiB
Markdown
113 lines
3.6 KiB
Markdown
---
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title: kubelet
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notitle: true
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---
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## kubelet
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<!--
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### Synopsis
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-->
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### 概要
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<!--
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The kubelet is the primary "node agent" that runs on each
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node. The kubelet works in terms of a PodSpec. A PodSpec is a YAML or JSON object
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that describes a pod. The kubelet takes a set of PodSpecs that are provided through
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various mechanisms (primarily through the apiserver) and ensures that the containers
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described in those PodSpecs are running and healthy. The kubelet doesn't manage
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containers which were not created by Kubernetes.
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-->
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kubelet 是在每个节点上运行的主要 "节点代理"。kubelet 以 PodSpec 为单位来运行任务，PodSpec 是一个描述 pod 的 YAML 或 JSON 对象。
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kubelet 运行多种机制（主要通过 apiserver）提供的一组 PodSpec，并确保这些 PodSpecs 中描述的容器健康运行。
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不是 Kubernetes 创建的容器将不在 kubelet 的管理范围。
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<!--
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Other than from a PodSpec from the apiserver, there are three ways that a container
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manifest can be provided to the Kubelet.
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File: Path passed as a flag on the command line. Files under this path will be monitored
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periodically for updates. The monitoring period is 20s by default and is configurable
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via a flag.
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HTTP endpoint: HTTP endpoint passed as a parameter on the command line. This endpoint
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is checked every 20 seconds (also configurable with a flag).
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HTTP server: The kubelet can also listen for HTTP and respond to a simple API
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(underspec'd currently) to submit a new manifest.
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-->
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除了来自 apiserver 的 PodSpec 之外，还有三种方法可以将容器清单提供给 Kubelet。
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文件：通过命令行传入的文件路径。kubelet 将定期监听该路径下的文件以获得更新。监视周期默认为 20 秒，可通过参数进行配置。
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HTTP 端点：HTTP 端点以命令行参数传入。每 20 秒检查一次该端点（该时间间隔也是可以通过命令行配置的）。
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HTTP 服务：kubelet 还可以监听 HTTP 并响应简单的 API（当前未指定）以提交新的清单。
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```
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kubelet [flags]
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```
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<!--
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### Options
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-->
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### 选项
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<table style="width: 100%; table-layout: fixed;">
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<colgroup>
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<col span="1" style="width: 10px;" />
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<col span="1" />
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</colgroup>
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<tbody>
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<tr>
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<td colspan="2">--azure-container-registry-config string</td>
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</tr>
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<tr>
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<!--
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<td></td><td style="line-height: 130%; word-wrap: break-word;">Path to the file containing Azure container registry configuration information.</td>
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-->
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<td></td><td style="line-height: 130%; word-wrap: break-word;">包含 Azure 容器注册配置信息的文件路径</td>
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</tr>
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<tr>
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<td colspan="2">-h, --help</td>
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</tr>
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<tr>
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<!--
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<td></td><td style="line-height: 130%; word-wrap: break-word;">help for kubelet</td>
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-->
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<td></td><td style="line-height: 130%; word-wrap: break-word;">kubelet 的帮助信息</td>
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</tr>
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<tr>
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<!--
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<td colspan="2">--log-flush-frequency duration Default: 5s</td>
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-->
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<td colspan="2">--log-flush-frequency 间隔 默认: 5s</td>
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</tr>
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<tr>
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<!--
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<td></td><td style="line-height: 130%; word-wrap: break-word;">Maximum number of seconds between log flushes</td>
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-->
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<td></td><td style="line-height: 130%; word-wrap: break-word;">日志刷新间隔的最大秒数</td>
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</tr>
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<tr>
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<td colspan="2">--version version[=true]</td>
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</tr>
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<tr>
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<!--
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<td></td><td style="line-height: 130%; word-wrap: break-word;">Print version information and quit</td>
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-->
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<td></td><td style="line-height: 130%; word-wrap: break-word;">打印版本信息并退出</td>
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</tr>
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</tbody>
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</table>
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