Kubernetes cni config uninitialized

kubernetes

I'm installing kubernetes(kubeadm) on centos VM runing inside Virtualbox, so with yum i installed kubeadm, kubelet and docker.

Now while trying to setup cluster with kubeadm init --pod-network-cidr=192.168.56.0/24 --apiserver-advertise-address=192.168.56.33/32 i run into the following error : 

Unable to update cni config: No networks found in /etc/cni/net.d

Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized

So i checked, no cni folder in /etc even that kubernetes-cni-0.6.0-0.x86_64 is installed. I Tried commenting KUBELET_NETWORK_ARGS in /etc/systemd/system/kubelet.service.d/10-kubeadm.conf but it didn't work.

PS:

  • I'm installing behind proxy.

  • I have multiple network adapters:

    • NAT : 10.0.2.15/24 for Internet

    • Host Only : 192.168.56.33/32

    • And docker interface : 172.17.0.1/16

Docker version: 17.12.1-ce
kubectl version : Major:"1",
Minor:"9", GitVersion:"v1.9.3"
Centos 7

Best Answer

It was a proxy error as mentionned in Github https://github.com/kubernetes/kubernetes/issues/34695

They suggested to use kubeadm init --use-kubernetes-version v1.4.1 but i change my network entirely (no proxy) and i manage to setup my cluster.

And as @Radek mentionned before, seting up pod network with kubectl apply -f .... came after the initialization of cluster.

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