Merge pull request #39741 from Shubham82/linux_worker_node
Add page about upgrading Linux nodespull/40275/head
Kubernetes Prow Robot
GitHub
commit
0d92c72b01
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@ -217,81 +217,10 @@ Also calling `kubeadm upgrade plan` and upgrading the CNI provider plugin is no
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The upgrade procedure on worker nodes should be executed one node at a time or few nodes at a time,
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without compromising the minimum required capacity for running your workloads.
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### Upgrade kubeadm
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The following pages show how to Upgrade Linux and Windows worker nodes:
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- Upgrade kubeadm:
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{{< tabs name="k8s_install_kubeadm_worker_nodes" >}}
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{{% tab name="Ubuntu, Debian or HypriotOS" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-00 with the latest patch version
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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 or Fedora" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-0 with the latest patch version
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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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### Call "kubeadm upgrade"
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- For worker nodes this upgrades the local kubelet configuration:
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```shell
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sudo kubeadm upgrade node
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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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```shell
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# replace <node-to-drain> with the name of your node you are draining
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kubectl drain <node-to-drain> --ignore-daemonsets
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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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{{< tabs name="k8s_kubelet_and_kubectl" >}}
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{{% tab name="Ubuntu, Debian or HypriotOS" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-00 with the latest patch version
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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 or Fedora" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-0 with the latest patch version
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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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- Restart the 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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### Uncordon the node
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- Bring the node back online by marking it schedulable:
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```shell
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# replace <node-to-uncordon> with the name of your node
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kubectl uncordon <node-to-uncordon>
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```
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* [Upgrade Linux nodes](/docs/tasks/administer-cluster/kubeadm/upgrading-linux-nodes/)
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* [Upgrade Windows nodes](/docs/tasks/administer-cluster/kubeadm/upgrading-windows-nodes/)
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## Verify the status of the cluster
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@ -0,0 +1,100 @@
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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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This page explains how to upgrade a Linux Worker Nodes created with kubeadm.
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## {{% heading "prerequisites" %}}
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{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
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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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<!-- steps -->
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## Upgrading worker nodes
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### Upgrade kubeadm
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Upgrade kubeadm:
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{{< tabs name="k8s_install_kubeadm_worker_nodes" >}}
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{{% tab name="Ubuntu, Debian or HypriotOS" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-00 with the latest patch version
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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 or Fedora" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-0 with the latest patch version
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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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### Call "kubeadm upgrade"
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- For worker nodes this upgrades the local kubelet configuration:
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```shell
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sudo kubeadm upgrade node
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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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```shell
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# replace <node-to-drain> with the name of your node you are draining
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kubectl drain <node-to-drain> --ignore-daemonsets
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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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{{< tabs name="k8s_kubelet_and_kubectl" >}}
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{{% tab name="Ubuntu, Debian or HypriotOS" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-00 with the latest patch version
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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 or Fedora" %}}
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```shell
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# replace x in {{< skew currentVersion >}}.x-0 with the latest patch version
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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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- Restart the 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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### Uncordon the node
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- Bring the node back online by marking it schedulable:
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```shell
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# replace <node-to-uncordon> with the name of your node
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kubectl uncordon <node-to-uncordon>
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```
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## {{% heading "whatsnext" %}}
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* See how to [Upgrade Windows nodes](/docs/tasks/administer-cluster/kubeadm/upgrading-windows-nodes/).
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@ -2,7 +2,7 @@
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title: Upgrading Windows nodes
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min-kubernetes-server-version: 1.17
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content_type: task
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weight: 50
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weight: 110
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---
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<!-- overview -->
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@ -88,4 +88,6 @@ bring the node back online by marking it schedulable:
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# replace <node-to-drain> with the name of your node
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kubectl uncordon <node-to-drain>
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```
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## {{% heading "whatsnext" %}}
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* See how to [Upgrade Linux nodes](/docs/tasks/administer-cluster/kubeadm/upgrading-linux-nodes/).
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