[zh] sync /kubeadm/upgrading-linux-nodes.md
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title: 升级 Linux 节点
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content_type: task
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weight: 100
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---
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<!--
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title: Upgrading Linux nodes
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content_type: task
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weight: 100
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-->
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<!-- overview -->
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<!--
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This page explains how to upgrade a Linux Worker Nodes created with kubeadm.
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-->
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本页讲述了如何升级用 kubeadm 创建的 Linux 工作节点。
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## {{% heading "prerequisites" %}}
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{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
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<!--
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* Familiarize yourself with [the process for upgrading the rest of your kubeadm
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cluster](/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade). You will want to
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upgrade the control plane nodes before upgrading your Linux Worker nodes.
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-->
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* 你自己要熟悉[升级剩余 kubeadm 集群的过程](/zh-cn/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade)。
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你需要先升级控制面节点，再升级 Linux 工作节点。
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<!-- steps -->
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<!--
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## Upgrading worker nodes
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### Upgrade kubeadm
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Upgrade kubeadm:
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-->
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## 升级工作节点 {#upgrading-worker-nodes}
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### 升级 kubeadm {#upgrade-kubeadm}
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升级 kubeadm：
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<!--
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# replace x in {{< skew currentVersion >}}.x-00 with the latest patch version
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# replace x in {{< skew currentVersion >}}.x-0 with the latest patch version
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-->
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{{< tabs name="k8s_install_kubeadm_worker_nodes" >}}
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{{% tab name="Ubuntu、Debian 或 HypriotOS" %}}
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```shell
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# 将 {{< skew currentVersion >}}.x-00 中的 x 替换为最新的补丁版本
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apt-mark unhold kubeadm && \
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apt-get update && apt-get install -y kubeadm={{< skew currentVersion >}}.x-00 && \
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apt-mark hold kubeadm
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```
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{{% /tab %}}
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{{% tab name="CentOS、RHEL 或 Fedora" %}}
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```shell
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# 将 {{< skew currentVersion >}}.x-0 中的 x 替换为最新的补丁版本
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yum install -y kubeadm-{{< skew currentVersion >}}.x-0 --disableexcludes=kubernetes
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```
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{{% /tab %}}
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{{< /tabs >}}
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<!--
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### Call "kubeadm upgrade"
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- For worker nodes this upgrades the local kubelet configuration:
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-->
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### 执行 "kubeadm upgrade" {#call-kubeadm-upgrade}
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- 对于工作节点，下面的命令会升级本地的 kubelet 配置：
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```shell
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sudo kubeadm upgrade node
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```
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<!--
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### Drain the node
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- Prepare the node for maintenance by marking it unschedulable and evicting the workloads:
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-->
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### 腾空节点 {#drain-node}
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- 将节点标记为不可调度并驱逐所有负载，准备节点的维护：
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<!--
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# replace <node-to-drain> with the name of your node you are draining
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-->
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```shell
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# 将 <node-to-drain> 替换为你正腾空的节点的名称
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kubectl drain <node-to-drain> --ignore-daemonsets
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```
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<!--
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### Upgrade kubelet and kubectl
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- Upgrade the kubelet and kubectl:
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-->
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### 升级 kubelet 和 kubectl {#upgrade-kubelet-and-kubectl}
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- 升级 kubelet 和 kubectl:
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<!--
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# replace x in {{< skew currentVersion >}}.x-00 with the latest patch version
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# replace x in {{< skew currentVersion >}}.x-0 with the latest patch version
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-->
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{{< tabs name="k8s_kubelet_and_kubectl" >}}
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{{% tab name="Ubuntu、Debian 或 HypriotOS" %}}
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```shell
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# 将 {{< skew currentVersion >}}.x-00 中的 x 替换为最新的补丁版本
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apt-mark unhold kubelet kubectl && \
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apt-get update && apt-get install -y kubelet={{< skew currentVersion >}}.x-00 kubectl={{< skew currentVersion >}}.x-00 && \
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apt-mark hold kubelet kubectl
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```
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{{% /tab %}}
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{{% tab name="CentOS、RHEL 或 Fedora" %}}
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```shell
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# 将 {{< skew currentVersion >}}.x-0 中的 x 替换为最新的补丁版本
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yum install -y kubelet-{{< skew currentVersion >}}.x-0 kubectl-{{< skew currentVersion >}}.x-0 --disableexcludes=kubernetes
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```
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{{% /tab %}}
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{{< /tabs >}}
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<br />
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<!--
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- Restart the kubelet:
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-->
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- 重启 kubelet：
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```shell
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sudo systemctl daemon-reload
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sudo systemctl restart kubelet
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```
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<!--
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### Uncordon the node
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- Bring the node back online by marking it schedulable:
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-->
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### 取消对节点的保护 {#uncordon-node}
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- 通过将节点标记为可调度，让节点重新上线：
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<!--
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# replace <node-to-uncordon> with the name of your node
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-->
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```shell
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# 将 <node-to-uncordon> 替换为你的节点名称
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kubectl uncordon <node-to-uncordon>
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```
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## {{% heading "whatsnext" %}}
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<!--
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* See how to [Upgrade Windows nodes](/docs/tasks/administer-cluster/kubeadm/upgrading-windows-nodes/).
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-->
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* 查阅如何[升级 Windows 节点](/zh-cn/docs/tasks/administer-cluster/kubeadm/upgrading-windows-nodes/)。
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