keywords

一个新节点，如何加入k8s集群

background

按照1.安装前准备安装所需要应用，然后不知道怎么加入主节点。

analyze

加入主节点，很简单，让主节点生成的token和hash码。

kubeadm join 192.168.16.138:6443 --token abcdef.0123456789abcdef \
    --discovery-token-ca-cert-hash sha256:f0759e0d352c1a5de4444782b4a676460b2ea7a2876fa0accab572b8629b72c8

solve

1.kubeadm生成的token过期重新获取

加入主节点后在观察tidb命名空间的pods

root@kubernets-master:~# watch kubectl get pods -n tidb -o wide

NAME                                      READY   STATUS    RESTARTS   AGE     IP               NODE              NOMINATED NODE   READINESS GATES
tidb-cluster-discovery-6b7f8d9954-d7pbp   1/1     Running   3          2d21h   10.244.122.222   kubernets-node1   <none>           <none>
tidb-cluster-monitor-67f5d8d845-d58l6     3/3     Running   9          2d21h   10.244.102.127   kubernets-node2   <none>           <none>
tidb-cluster-pd-0                         1/1     Running   4          2d21h   10.244.122.225   kubernets-node1   <none>           <none>
tidb-cluster-pd-1                         1/1     Running   6          2d21h   10.244.102.68    kubernets-node2   <none>           <none>
tidb-cluster-pd-2                         1/1     Running   6          2d21h   10.244.221.211   volumes           <none>           <none>
tidb-cluster-tidb-0                       2/2     Running   7          2d17h   10.244.221.210   volumes           <none>           <none>
tidb-cluster-tidb-1                       2/2     Running   7          2d17h   10.244.221.208   volumes           <none>           <none>
tidb-cluster-tikv-0                       1/1     Running   3          2d18h   10.244.221.209   volumes           <none>           <none>
tidb-cluster-tikv-1                       1/1     Running   2          2d18h   10.244.122.221   kubernets-node1   <none>           <none>
tidb-cluster-tikv-2                       1/1     Running   2          2d18h   10.244.102.126   kubernets-node2   <none>           <none>

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