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43 lines
2.0 KiB
Markdown
43 lines
2.0 KiB
Markdown
# Deploying kube-router with kubeadm
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Please follow the [steps](https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/) to install Kubernetes cluster with Kubeadm, however must specify `--pod-network-cidr` when you run `kubeadm init`.
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Kube-router relies on kube-controller-manager to allocate pod CIDR for the nodes.
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Kube-router provides pod networking, network policy and high perfoming IPVS/LVS based service proxy. Depending on you choose to use kube-router for service proxy you have two options.
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## kube-router providing pod networking and network policy
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For the step #3 **Installing a pod network** install a kube-router pod network and network policy add-on with the following command (Kubernetes version should be at least 1.8):
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```sh
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KUBECONFIG=/etc/kubernetes/admin.conf kubectl apply -f https://raw.githubusercontent.com/cloudnativelabs/kube-router/master/daemonset/kubeadm-kuberouter.yaml
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```
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## kube-router providing service proxy, firewall and pod networking.
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For the step #3 **Installing a pod network** install a kube-router pod network and network policy add-on with the following command (Kubernetes version should be at least 1.8):
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```sh
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KUBECONFIG=/etc/kubernetes/admin.conf kubectl apply -f https://raw.githubusercontent.com/cloudnativelabs/kube-router/master/daemonset/kubeadm-kuberouter-all-features.yaml
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```
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Now since kube-router provides service proxy as well. Run below commands to remove kube-proxy and cleanup any iptables configuration it may have done.
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```sh
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KUBECONFIG=/etc/kubernetes/admin.conf kubectl -n kube-system delete ds kube-proxy
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```
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To cleanup kube-proxy we can do this with docker or containerd:
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docker:
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```sh
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docker run --privileged -v /lib/modules:/lib/modules --net=host k8s.gcr.io/kube-proxy-amd64:v1.23.4 kube-proxy --cleanup
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```
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containerd:
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```sh
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ctr images pull k8s.gcr.io/kube-proxy-amd64:v1.23.4
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ctr run --rm --privileged --net-host --mount type=bind,src=/lib/modules,dst=/lib/modules,options=rbind:ro \
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k8s.gcr.io/kube-proxy-amd64:v1.23.4 kube-proxy-cleanup kube-proxy --cleanup
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``` |