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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

Execute command

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When you have the join statement, copy it and execute it on the worker node

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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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kubectl get po -A

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7 Propagate a deployment by Karmada

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Before propagating a deployment, make sure the worker cluster is already working properly And get the latest config currently running

In the following steps, we are going to propagate a deployment by Karmada. We use the installation of nginx as an example

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Here we add the working node cluster through push mode

It is worth noting that /root/.kube/config is Kubernetes config and the /etc/karmada/karmada-apiserver.config is Karmada's config

Execute command

kubectl karmada join worker-cluster--kubeconfig /etc/karmada/karmada-apiserver.config  join ${YOUR MEMBER NAME} --cluster-kubeconfig=prod${YOUR MEMBER CONFIG PATH} --cluster-context=prod${YOUR CLUSTER CONTEXT}

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Here is example command for your information: kubectl karmada --kubeconfig /etc/karmada/karmada-apiserver.config  join member1 --cluster-kubeconfig=/root/.kube/192.168.30.22_config --cluster-context=kubernetes-admin@kubernetes

• --kubeconfig  specifies the Karmada's kubeconfig file and the CLI 
• --cluster-kubeconfig specifies the member's config. Generally, it can be obtained from the worker cluster in "/root/.kube/config"
• --cluster-context the value of current-context from --cluster-kubeconfig

If you want unjoin the member cluster, just change the join to unjoin:   kubectl karmada --kubeconfig /etc/karmada/karmada-apiserver.config  unjoin member2 --cluster-kubeconfig=/root/.kube/192.168.30.2_config --cluster-context=kubernetes-admin@kubernetes

check the members of karmada 

Execute command

kubectl --kubeconfig /etc/karmada/karmada-apiserver.config get clusters

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7.2 Create nginx deployment in Karmada

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Execute command

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language bash theme DJango linenumbers true
kubectl create -f get po -A

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/root/sample/nginx/deployment.yaml --kubeconfig /etc/karmada/karmada-apiserver.config kubectl get deployment --kubeconfig /etc/karmada/karmada-apiserver.config

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7.3 Create PropagationPolicy that will propagate nginx to member cluster

Execute command

kubectl get po -A

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create -f /root/sample/nginx/propagationpolicy.yaml --kubeconfig /etc/karmada/karmada-apiserver.config

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7.4 Check the deployment status from Karmada

kubectl get po -A --kubeconfig /root/.kube/member1-config
kubectl get po  --kubeconfig /root/.kube/member2-config

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Reference

https://lazytoki.cn/index.php/archives/4/

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