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Update Cilium related docs (#18563)

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* Extend Cilium CNI plugin description

Mention that it works on top of other CNI plugins due to the CNI
chaining [1].

[1]: http://docs.cilium.io/en/v1.6/gettingstarted/cni-chaining/

Signed-off-by: Martynas Pumputis <m@lambda.lt>

* Update Cilium installation steps for kubeadm

- Use the latest v1.6 Cilium.
- By default, Cilium no longer needs/deploys ETCD store.

Signed-off-by: Martynas Pumputis <m@lambda.lt>

* Update Cilium NetworkPolicy guide

- Update minikube min version requirement.
- Use Cilium v1.6.
- Remove the etcd store bits, as Cilium v1.6 no longer depend on
  it by default.

Signed-off-by: Martynas Pumputis <m@lambda.lt>

* Update Cilium installation steps for kubeadm

- How to run without kube-proxy.

Signed-off-by: Martynas Pumputis <m@lambda.lt>

Co-authored-by: Martynas Pumputis <m@lambda.lt>
This commit is contained in:
André Martins
2020-01-13 13:35:36 +01:00
committed by Kubernetes Prow Robot
parent 7969a84110
commit 5cb0e3d7b4
4 changed files with 29 additions and 33 deletions
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content/en/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm.md
+5 -12
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@@ -319,23 +319,12 @@ kubectl apply -f https://docs.projectcalico.org/v3.8/manifests/canal.yaml
{{% /tab %}}
{{% tab name="Cilium" %}}
For more information about using Cilium with Kubernetes, see [Kubernetes Install guide for Cilium](https://docs.cilium.io/en/stable/kubernetes/).
For Cilium to work correctly, you must pass `--pod-network-cidr=10.217.0.0/16` to `kubeadm init`.
These commands will deploy Cilium with its own etcd managed by etcd operator.
_Note_: If you are running kubeadm in a single node please untaint it so that
etcd-operator pods can be scheduled in the control-plane node.
```shell
kubectl taint nodes <node-name> node-role.kubernetes.io/master:NoSchedule-
```
To deploy Cilium you just need to run:
```shell
kubectl create -f https://raw.githubusercontent.com/cilium/cilium/v1.5/examples/kubernetes/1.14/cilium.yaml
kubectl create -f https://raw.githubusercontent.com/cilium/cilium/v1.6/install/kubernetes/quick-install.yaml
```
Once all Cilium pods are marked as `READY`, you start using your cluster.
@@ -349,6 +338,10 @@ NAME READY STATUS RESTARTS AGE
cilium-drxkl 1/1 Running 0 18m
```
Cilium can be used as a replacement for kube-proxy, see [Kubernetes without kube-proxy](https://docs.cilium.io/en/stable/gettingstarted/kubeproxy-free).
For more information about using Cilium with Kubernetes, see [Kubernetes Install guide for Cilium](https://docs.cilium.io/en/stable/kubernetes/).
{{% /tab %}}
{{% tab name="Contiv-VPP" %}}