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create-cluster-kubeadm: update notes about flannel (#9793)

* create-cluster-kubeadm: update notes about flannel

Add note that a specific manifest can be used to support
different architectures until version 0.11.0 is released.

* Fix passive voice

Style guide compliance
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neolit123 authored and k8s-ci-robot committed Aug 20, 2018
1 parent 99b8082 commit c7d62b344bc4d5a6673f983b5426a864f4e8e715
Showing with 7 additions and 2 deletions.
  1. +7 −2 content/en/docs/setup/independent/create-cluster-kubeadm.md
@@ -281,8 +281,7 @@ kubectl apply -f https://docs.projectcalico.org/v3.1/getting-started/kubernetes/
{{% /tab %}}
{{% tab name="Flannel" %}}
For `flannel` to work correctly, `--pod-network-cidr=10.244.0.0/16` has to be passed to `kubeadm init`. Note that `flannel` works on `amd64`, `arm`, `arm64` and `ppc64le`. For it to work on a platform other than
`amd64`, you must manually download the manifest and replace `amd64` occurrences with your chosen platform.
For `flannel` to work correctly, you must pass `--pod-network-cidr=10.244.0.0/16` to `kubeadm init`.
Set `/proc/sys/net/bridge/bridge-nf-call-iptables` to `1` by running `sysctl net.bridge.bridge-nf-call-iptables=1`
to pass bridged IPv4 traffic to iptables' chains. This is a requirement for some CNI plugins to work, for more information
@@ -291,6 +290,12 @@ please see [here](https://kubernetes.io/docs/concepts/cluster-administration/net
```shell
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml
```
Note that `flannel` works on `amd64`, `arm`, `arm64` and `ppc64le`, but until `flannel v0.11.0` is released
you need to use the following manifest that supports all the architectures:
```shell
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/c5d10c8/Documentation/kube-flannel.yml
```
For more information about `flannel`, see [the CoreOS flannel repository on GitHub
](https://github.com/coreos/flannel).

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