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yum -y install docker-ce |
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2.3 Set docker to boot and confirm docker status
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systemctl enable docker systemctl start docker systemctl status docker |
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2.4 Configure the driver of docker's cgroup
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Check the current configuration, if it is the system in the figure below, skip the follow-up and go directly to the third section
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If it is cgroupfs, add the following statement
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systemctl daemon-reload && systemctl restart docker docker info | grep -i cgroup |
3 Install k8s basic components
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yum list installed | grep kube |
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3.2 Install kubelet kubeadm kubectl version 1.23.7
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yum -y install kubelet-1.23.7 kubeadm-1.23.7 kubectl-1.23.7 |
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3.3 Verify installation
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kubelet --version kubeadm version kubectl version |
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4 Initialize the master
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# master kubeadm config images list --kubernetes-version=v1.23.7 |sed -e 's/^/docker pull /g' -e 's#k8s.gcr.io#registry.aliyuncs.com/google_containers#g' |sh -x docker pull registry.aliyuncs.com/google_containers/coredns:v1.8.6 docker images |
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Please make sure that the above 7 images have been pulled down
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# master kubeadm init --image-repository registry.aliyuncs.com/google_containers --kubernetes-version=v1.23.7 --pod-network-cidr=10.10.0.0/16 |
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Let kubectl take effect
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# master mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config kubectl get po -A |
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We can see that the coredns is not ready, so we need configure the network plugin
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Here select cilium as the network plugin
Confirm that your current default version of the kernel is above 4.9
Check the current kernel version
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# master uname -sr |
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# master kubeadm token create --print-join-command |
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5.2 Join the master node
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When you have the join statement, copy it and execute it on the worker node, you can see
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Note that if an error occurs and you need to re-init, you need to execute the following statement first to ensure that kubeadm is re-executed normally
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# master kubectl get nodes |
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6 Install karmada
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7 Propagate a deployment by Karmada
Before propagating a deployment, make sure the worker cluster is already working properly
In the following steps, we are going to propagate a deployment by Karmada. We use the installation of nginx as an example
7.1 Join a worker/member cluster to karmada control plane
Here we add the working node cluster through push mode
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kubectl karmada join worker-cluster --cluster-kubeconfig=prod --cluster-context=prod |
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