I'm new to kubernetes and I'm setting up my first testing cluster. However, I'll get this error when I set up the master node. But I'm not sure how to fix it.
[ERROR KubeletVersion]: the kubelet version is higher than the control plane version.
This is not a supported version skew and may lead to a malfunctional cluster.
Kubelet version: "1.12.0-rc.1" Control plane version: "1.11.3"The host is fully patched to the latest levels
CentOS Linux release 7.5.1804 (Core)
Many Thanks S
I'm getting the same error on a clean Centos 7 install after fully updating with yum update, and then applying the instructions from https://kubernetes.io/docs/setup/independent/install-kubeadm/ for setup.
Adding the option for --ignore-preflight-errors=KubeletVersion allows the installer to continue but the installation is non-working afterwards.
I was able to remove everything and reinstall matching versions with the following:
yum -y remove kubelet kubeadm kubectl yum install -y --disableexcludes=kubernetes kubeadm-1.11.3-0.x86_64 kubectl-1.11.3-0.x86_64 kubelet-1.11.3-0.x86_64
Install the same version of kubelet & kubeadm
yum -y remove kubelet
yum -y install kubelet-1.11.3-0 kubeadm-1.11.3-0I hit the same problem and used the kubeadm option: --kubernetes-version=v1.12.0-rc.1
sudo kubeadm init --pod-network-cidr=172.16.0.0/12 --kubernetes-version=v1.12.0-rc.1
I'm using a JVM image that was prepared a few weeks ago and have just updated the packages. Kubeadm, kubectl and kubelet all now return version v1.12.0-rc.1 when asked but when 'kubeadm init' is called it kicks off with the previous version.
[init] using Kubernetes version: v1.11.3
specifying the (control plane) version did the trick.