Kubernetes cluster capacity expansion to add node nodes

Kubernetes- Cluster expansion and increase node node

Lou Lou has just contacted Kubernets A series of knowledge , Refer to other people's blogs , Sum up , Hee hee

Master Node operation

(1) First in master Enter the corresponding path

(2) #Kubeadm token create
Use this command to create a valid token, Every token Only 24 Hours validity

(3)#openssl x509 -pubkey -in
/etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl
dgst -sha256 -hex | sed ‘s/^.* //’
see Kubernetes The certification SHA256 What is the encrypted string

Node Node operation

(1) kubeadm join --token [TOKEN]
10.3.14.193:6443 --discovery-token-ca-cert-hash sha256:[SHA256] Add the new node to the cluster , Use this command to modify

(2) #kubeadm join 192.168.1.78:6443
–token 024a7a.078bb31c2b9b9a10 --discovery-token-ca-cert-hash
sha256:8c8386d626b67698d27b28064bea067a70e774d1f97fd1231ae2dcfa922ab391
–ignore-preflight-errors=swap

Indicates that the addition was successful

Last in master In nodes

#kubectl get nodes