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kubeadm: add task page for cluster reconf

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The new task page outlines steps for reconfiguring
a kubeadm cluster and persisting reconfiguration.

Link the new page from the existing guides for
"customizing components", "creating a cluster",
and "kubeadm upgrade".

Co-authored-by: Paco Xu <paco.xu@daocloud.io>
Co-authored-by: Qiming Teng <tengqm@outlook.com>
This commit is contained in:
Lubomir I. Ivanov
2022-04-05 19:28:53 +03:00
parent 3cadb66eb8
commit 931581eb88
4 changed files with 295 additions and 3 deletions
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content/en/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade.md
+6 -1
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@@ -43,7 +43,12 @@ first drain the node (or nodes) that you are upgrading. In the case of control p
they could be running CoreDNS Pods or other critical workloads. For more information see
[Draining nodes](/docs/tasks/administer-cluster/safely-drain-node/).
- All containers are restarted after upgrade, because the container spec hash value is changed.
- To verify that the kubelet service has successfully restarted after the kubelet has been upgraded, you can execute `systemctl status kubelet` or view the service logs with `journalctl -xeu kubelet`.
- To verify that the kubelet service has successfully restarted after the kubelet has been upgraded,
you can execute `systemctl status kubelet` or view the service logs with `journalctl -xeu kubelet`.
- Usage of the `--config` flag of `kubeadm upgrade` with
[kubeadm configuration API types](/docs/reference/config-api/kubeadm-config.v1beta3)
with the purpose of reconfiguring the cluster is not recommended and can have unexpected results. Follow the steps in
[Reconfiguring a kubeadm cluster](/docs/tasks/administer-cluster/kubeadm/kubeadm-reconfigure) instead.
<!-- steps -->