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[zh]update file content/zh/docs/tasks/network/customize-hosts-file-for-pods.md (#33042)

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* [zh]update file content/zh/docs/tasks/network/customize-hosts-file-for-pods.md

* [zh]update file content/zh/docs/tasks/network/customize-hosts-file-for-pods.md

* [zh]update file content/zh/docs/tasks/network/customize-hosts-file-for-pods.md

* [zh]update file content/zh/docs/tasks/network/customize-hosts-file-for-pods.md

* Update content/zh/docs/tasks/network/customize-hosts-file-for-pods.md

Co-authored-by: Qiming Teng <tengqm@outlook.com>

Co-authored-by: Qiming Teng <tengqm@outlook.com>
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kinzhi
2022-04-21 22:10:58 +08:00
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commit 84184494fc
1 changed files with 18 additions and 10 deletions
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@@ -162,19 +162,27 @@ With the additional entries specified at the bottom.
-->
在最下面额外添加了一些条目。
<!--
## Why Does Kubelet Manage the Hosts File?
<!--
## Why does the kubelet manage the hosts file? {#why-does-kubelet-manage-the-hosts-file}
Kubelet [manages](https://github.com/kubernetes/kubernetes/issues/14633) the
`hosts` file for each container of the Pod to prevent Docker from
[modifying](https://github.com/moby/moby/issues/17190) the file after the
containers have already been started.
The kubelet manages the
`hosts` file for each container of the Pod to prevent the container runtime from
modifying the file after the containers have already been started.
Historically, Kubernetes always used Docker Engine as its container runtime, and Docker Engine would
then modify the `/etc/hosts` file after each container had started.
Current Kubernetes can use a variety of container runtimes; even so, the kubelet manages the
hosts file within each container so that the outcome is as intended regardless of which
container runtime you use.
-->
## 为什么 kubelet 管理 hosts 文件？
## 为什么 kubelet 管理 hosts 文件？{#why-does-kubelet-manage-the-hosts-file}
kubelet [管理](https://github.com/kubernetes/kubernetes/issues/14633) Pod
中每个容器的 hosts 文件，避免 Docker 在容器已经启动之后去
[修改](https://github.com/moby/moby/issues/17190) 该文件。
kubelet 管理每个Pod 容器的 `hosts` 文件，以防止容器运行时在容器已经启动后修改文件。
由于历史原因，Kubernetes 总是使用 Docker Engine 作为其容器运行时，而 Docker Engine
将在容器启动后修改 `/etc/hosts` 文件。
当前的 Kubernetes 可以使用多种容器运行时；即便如此，kubelet 管理在每个容器中创建 hosts文件，
以便你使用任何容器运行时运行容器时，结果都符合预期。
{{< caution >}}
<!--