in order to add nodes to K8S cluster you must deploy a Container Network Interface (CNI) NAMESPACE NAME READY STATUS RESTARTS AGE kube-system coredns-64897985d-4npkg 0/1 Pending 0 5h33m kube-system coredns-64897985d-qm8gt 0/1 Pending 0 5h33m kube-system etcd- KubeMngr 1/1 Running 1 5h33m kube-system kube-apiserver- KubeMngr 1/1 Running 1 5h33m kube-system kube-controller-manager- KubeMngr 1/1 Running 1 5h33m kube-system kube-proxy-w6mmf 1/1 Running 0 5h33m kube-system kube-scheduler- KubeMngr 1/1 Running 1 5h33m here is an example of how to install calico CNI: download YAML file: curl https://docs.projectcalico.org/manifests/calico.yaml -O apply it using kubectl cli: kubectl apply -f calico.yaml and: [root@KubeMngr kubernetes]# kubectl get pods --all-
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