159 lines
4.2 KiB
Markdown
159 lines
4.2 KiB
Markdown
---
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title: 将 Pod 分配给节点
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content_type: task
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weight: 120
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---
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<!--
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title: Assign Pods to Nodes
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content_type: task
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weight: 120
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-->
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<!-- overview -->
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<!--
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This page shows how to assign a Kubernetes Pod to a particular node in a
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Kubernetes cluster.
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-->
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此页面显示如何将 Kubernetes Pod 指派给 Kubernetes 集群中的特定节点。
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## {{% heading "prerequisites" %}}
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{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
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<!-- steps -->
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<!--
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## Add a label to a node
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1. List the {{< glossary_tooltip term_id="node" text="nodes" >}} in your cluster, along with their labels:
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-->
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## 给节点添加标签
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1. 列出你的集群中的{{< glossary_tooltip term_id="node" text="节点" >}}，
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包括这些节点上的标签：
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```shell
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kubectl get nodes
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```
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<!--
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The output is similar to this:
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-->
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输出类似如下：
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```
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NAME STATUS AGE VERSION
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worker0 Ready 1d v1.6.0+fff5156
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worker1 Ready 1d v1.6.0+fff5156
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worker2 Ready 1d v1.6.0+fff5156
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```
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<!--
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1. Choose one of your nodes, and add a label to it:
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-->
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2. 从你的节点中选择一个，为它添加标签：
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```shell
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kubectl label nodes <your-node-name> disktype=ssd
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```
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<!--
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where `<your-node-name>` is the name of your chosen node.
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-->
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`<your-node-name>` 是你选择的节点的名称。
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<!--
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1. Verify that your chosen node has a `disktype=ssd` label:
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-->
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3. 验证你选择的节点确实带有 `disktype=ssd` 标签：
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```shell
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kubectl get nodes --show-labels
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```
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<!--
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The output is similar to this:
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-->
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输出类似如下：
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```
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NAME STATUS AGE VERSION LABELS
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worker0 Ready 1d v1.6.0+fff5156 ...,disktype=ssd,kubernetes.io/hostname=worker0
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worker1 Ready 1d v1.6.0+fff5156 ...,kubernetes.io/hostname=worker1
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worker2 Ready 1d v1.6.0+fff5156 ...,kubernetes.io/hostname=worker2
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```
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<!--
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In the preceding output, you can see that the `worker0` node has a
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`disktype=ssd` label.
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-->
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在前面的输出中，你可以看到 `worker0` 节点有 `disktype=ssd` 标签。
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<!--
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## Create a pod that gets scheduled to your chosen node
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This pod configuration file describes a pod that has a node selector,
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`disktype: ssd`. This means that the pod will get scheduled on a node that has
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a `disktype=ssd` label.
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-->
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## 创建一个将被调度到你选择的节点的 Pod
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此 Pod 配置文件描述了一个拥有节点选择器 `disktype: ssd` 的 Pod。这表明该 Pod
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将被调度到有 `disktype=ssd` 标签的节点。
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{{< codenew file="pods/pod-nginx.yaml" >}}
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<!--
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1. Use the configuration file to create a pod that will get scheduled on your
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chosen node:
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-->
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1. 使用该配置文件创建一个 Pod，该 Pod 将被调度到你选择的节点上：
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```shell
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kubectl create -f https://k8s.io/examples/pods/pod-nginx.yaml
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```
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<!--
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1. Verify that the pod is running on your chosen node:
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-->
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2. 验证 Pod 确实运行在你选择的节点上：
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```shell
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kubectl get pods --output=wide
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```
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<!--
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The output is similar to this:
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-->
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输出类似如下：
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```
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NAME READY STATUS RESTARTS AGE IP NODE
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nginx 1/1 Running 0 13s 10.200.0.4 worker0
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```
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<!--
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## Create a pod that gets scheduled to specific node
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You can also schedule a pod to one specific node via setting `nodeName`.
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-->
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## 创建一个会被调度到特定节点上的 Pod
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你也可以通过设置 `nodeName` 将某个 Pod 调度到特定的节点。
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{{< codenew file="pods/pod-nginx-specific-node.yaml" >}}
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<!--
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Use the configuration file to create a pod that will get scheduled on `foo-node` only.
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-->
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使用此配置文件来创建一个 Pod，该 Pod 将只能被调度到 `foo-node` 节点。
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## {{% heading "whatsnext" %}}
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<!--
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* Learn more about [labels and selectors](/docs/concepts/overview/working-with-objects/labels/).
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* Learn more about [nodes](/docs/concepts/architecture/nodes/).
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-->
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* 进一步了解[标签和选择算符](/zh-cn/docs/concepts/overview/working-with-objects/labels/)
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* 进一步了解[节点](/zh-cn/docs/concepts/architecture/nodes/)
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