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kubeadm: add notes about deprecating kube-dns usage in 1.18 (#18851)

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* kubeadm: add notes about deprecating kube-dns usage in 1.18

* implementation-details: update notes about DNS
This commit is contained in:
Lubomir I. Ivanov
2020-02-07 21:29:45 +02:00
committed by GitHub
parent 6909798afd
commit fb1c0e8b77
4 changed files with 17 additions and 17 deletions
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content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md
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@@ -67,10 +67,14 @@ following steps:
1. Installs a DNS server (CoreDNS) and the kube-proxy addon components via the API server.
In Kubernetes version 1.11 and later CoreDNS is the default DNS server.
To install kube-dns instead of CoreDNS, the DNS addon has to be configured in the kubeadm `ClusterConfiguration`. For more information about the configuration see the section
`Using kubeadm init with a configuration file` below.
To install kube-dns instead of CoreDNS, the DNS addon has to be configured in the kubeadm `ClusterConfiguration`.
For more information about the configuration see the section `Using kubeadm init with a configuration file` below.
Please note that although the DNS server is deployed, it will not be scheduled until CNI is installed.
{{< warning >}}
kube-dns usage with kubeadm is deprecated as of v1.18 and will be removed in a future release.
{{< /warning >}}
### Using init phases with kubeadm {#init-phases}
Kubeadm allows you to create a control-plane node in phases using the `kubeadm init phase` command.