Kubernetes cni config uninitialized
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
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.
reason:NetworkPluginNotReady - you need to install a networking solution into kubeadm provisioned cluster before anything else can start up.
Using kubeadm to Create a Cluster - Installing a pod network | Kubernetes
seems a docker image is missing.
check if the images have been downloaded into your machines(VM)
docker image list or kubeadm config images list
expected image: quay.io/coreos/flannel v0.10.0-amd64.
pls refer to offical doc for more images required
if the image is missing, pls download it manually.
docker pull quay.io/coreos/flannel:v0.10.0-amd64
for more images: kubeadm config images pull
Then, restart