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  • K8S集群添加新节点

    添加新的master节点

    获取token及token证书

    root@k8s-master1:~# kubeadm token create --print-join-command 
    kubeadm join 192.168.255.100:6443 --token peawzl.bwonk5nviow72m9g --discovery-token-ca-cert-hash sha256:43e1fe29b90eab70840d47a98f9f07dd4efb3b002df16ccfc7e252777d4104cb  
    

    获取control-plane证书

    root@k8s-master1:~# kubeadm init phase upload-certs --upload-certs
    [upload-certs] Storing the certificates in Secret "kubeadm-certs" in the "kube-system" Namespace
    [upload-certs] Using certificate key:
    e1adc057fd80060fa9c6789743480867ebd84973d6b4c1aff3d24393c7a94c1f
    

    在新的master节点执行命令

    kubeadm join 192.168.255.100:6443 --token peawzl.bwonk5nviow72m9g 
    --discovery-token-ca-cert-hash sha256:43e1fe29b90eab70840d47a98f9f07dd4efb3b002df16ccfc7e252777d4104cb 
    --control-plane --certificate-key e1adc057fd80060fa9c6789743480867ebd84973d6b4c1aff3d24393c7a94c1f
    

    添加新的node节点

    方法一:

    获取master的join token
    kubeadm token create --print-join-command --ttl=0 (--ttl=0代表token永不过期,不加此参数默认24小时过期)
    执行完成后,会自动生成以下命令

    root@k8s-master1:~# kubeadm token create --print-join-command --ttl=0
    kubeadm join 192.168.255.100:6443 --token a38r5e.29xc6zib3vqg2iv0 --discovery-token-ca-cert-hash sha256:43e1fe29b90eab70840d47a98f9f07dd4efb3b002df16ccfc7e252777d4104cb 
    

    在node节点操作:

    root@k8s-node1:~# kubeadm join 192.168.255.100:6443 --token a38r5e.29xc6zib3vqg2iv0 --discovery-token-ca-cert-hash sha256:43e1fe29b90eab70840d47a98f9f07dd4efb3b002df16ccfc7e252777d4104cb
    

    方法二:

    在master节点操作

    root@k8s-master1:~# kubeadm token create
    lojsfz.0901j0259yi9yk0a    #生成的token
    

    再执行:

    root@k8s-master1:~# openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null |  openssl dgst -sha256 -hex | sed 's/^.* //'
    43e1fe29b90eab70840d47a98f9f07dd4efb3b002df16ccfc7e252777d4104cb   #生成的token-ca-cert-hash
    

    在node节点操作:

    root@k8s-node1:~# kubeadm join 192.168.255.100:6443 --token lojsfz.0901j0259yi9yk0a  --discovery-token-ca-cert-hash sha256:43e1fe29b90eab70840d47a98f9f07dd4efb3b002df16ccfc7e252777d4104cb
    
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  • 原文地址:https://www.cnblogs.com/eddie1127/p/15152747.html
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