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update and reorder sub contents (#10112)

pull/10419/merge
makocchi 2018-10-04 11:07:30 +09:00 committed by k8s-ci-robot
parent 9c2f4b7123
commit 20b1dd242d
1 changed files with 15 additions and 10 deletions
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content/en/docs/tasks/administer-cluster/coredns.md
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@ -7,7 +7,7 @@ content_template: templates/task
---
{{% capture overview %}}
This page describes the CoreDNS upgrade process and how to install kube-dns instead of CoreDNS.
This page describes the CoreDNS upgrade process and how to install CoreDNS instead of kube-dns.
{{% /capture %}}
{{% capture prerequisites %}}
@ -29,15 +29,6 @@ deployment, or by using tools like kubeadm that will deploy and upgrade the clus
For manual deployment or replacement of kube-dns, see the documentation at the
[CoreDNS GitHub project.](https://github.com/coredns/deployment/tree/master/kubernetes)
## Installing CoreDNS with kubeadm
In Kubernetes 1.11, CoreDNS has graduated to General Availability (GA)
and is installed by default. To install kube-dns instead, set the `CoreDNS` feature gate
value to `false`:
```
kubeadm init --feature-gates=CoreDNS=false
```
## Upgrading an existing cluster with kubeadm
In Kubernetes version 1.10 and later, you can also move to CoreDNS when you use `kubeadm` to upgrade
@ -58,6 +49,20 @@ customizations after the new ConfigMap is up and running.
If you are running CoreDNS in Kubernetes version 1.11 and later, during upgrade,
your existing Corefile will be retained.
## Installing kube-dns instead of CoreDNS with kubeadm
{{< note >}}
**Note:** In Kubernetes 1.11, CoreDNS has graduated to General Availability (GA)
and is installed by default.
{{< /note >}}
To install kube-dns instead, set the `CoreDNS` feature gate
value to `false`:
```
kubeadm init --feature-gates=CoreDNS=false
```
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