I'm trying to create High Available master node but getting Exception in cni Plugin

Question

I have created one ec2 instance and added that to loadbalancer while I try to create master node with kubeadm init --control-plane-endpoint "LOAD_BALANCER_DNS:LOAD_BALANCER_PORT" --upload-certs command I'm getting following logs from kubelet status

kubelet[11586]: E0305 06:48:26.280438 11586 kubelet.go:2183] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready cni config uninitialized

When I tried to install CNI plugin it shows

Are you using correct host or port?

Can someone help me to resolve this

Have you seen [this thread](https://stackoverflow.com/questions/49112336/container-runtime-network-not-ready-cni-config-uninitialized)? — Wytrzymały Wiktor, Mar 05 '20 at 09:33
But If I give kubeadm init the node is created,If I create with loadbalancer ip and port it is not getting created after creation only i can make the following steps right? mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config — HARINI NATHAN, Mar 06 '20 at 09:38
Have you replaced `"LOAD_BALANCER_DNS:LOAD_BALANCER_PORT"` with a proper values? Are you sure you created the load balancer for kube-apiserver as described [here](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/#create-load-balancer-for-kube-apiserver)? — Wytrzymały Wiktor, Mar 06 '20 at 11:15
yes i have given proper values as given in the documentation — HARINI NATHAN, Mar 06 '20 at 11:45
Looks like you are missing the CNI. Take a look [here](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/#pod-network). Basically you need to specify '--pod-network-cidr' with the `kubeadm init`. You have to chose one. Usually Flannel is a safe option. — Wytrzymały Wiktor, Mar 06 '20 at 14:26
@HARININATHAN What have you done exactly? Have you used my advice or did something else? Please explain. — Wytrzymały Wiktor, Mar 11 '20 at 08:41

score 1 · Accepted Answer · answered Mar 11 '20 at 13:16

NetworkPluginNotReady message:docker: network plugin is not ready cni config uninitialized means that your CNI is misconfigured or missing.

In order to make it work properly you need to specify --pod-network-cidr while executing the kubeadm init command.

Here you can find the official documentation with a list of most popular Pod network plugins to choose from like Calico or Flannel.

I'm trying to create High Available master node but getting Exception in cni Plugin

1 Answers1