139 lines
3.3 KiB
Markdown
139 lines
3.3 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 分配给 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 nodes in your cluster:
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-->
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## 给节点添加标签
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1. 列出集群中的节点
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```shell
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kubectl get nodes
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```
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<!-- The output is similar to this: -->
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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. Chose one of your nodes, and add a label to it:
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-->
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2. 选择其中一个节点，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. 验证你选择的节点是否有 `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 将被调度到
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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. 使用该配置文件去创建一个 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 是不是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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<!-- The output is similar to this: -->
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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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## {{% heading "whatsnext" %}}
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<!--
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Learn more about
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[labels and selectors](/docs/concepts/overview/working-with-objects/labels/).
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-->
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进一步了解[标签和选择器](/zh/docs/concepts/overview/working-with-objects/labels/)
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