kubeadm init 初始化主节点
运行下面的命令来初始化kubernetes主节点:
kubeadm init --image-repository registry.aliyuncs.com/google_containers
由于gcr.io
服务器被墙,所以这里我们指定阿里云镜像库。
输出:
...
Your Kubernetes control-plane has initialized successfully!
To start using your cluster, you need to run the following as a regular user:
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/
Then you can join any number of worker nodes by running the following on each as root:
kubeadm join 192.168.31.174:6443 --token wzhn5s.lh9ahv8y4f59ie2t \
--discovery-token-ca-cert-hash sha256:7bf1f8c25fcef4aec3f55e463ac89cf42de43dccacf5fab940a597f0975af492
从输出中可以看到,kubernetes主节点已经成功初始化。
设置作为根用户来使用集群
接着,执行输出中提示的命令,设置作为根用户来使用集群。
[root@qikegu-centos5 ~]# mkdir -p $HOME/.kube
[root@qikegu-centos5 ~]# sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
[root@qikegu-centos5 ~]# sudo chown $(id -u):$(id -g) $HOME/.kube/config
添加工作节点命令
另外记住输出中,提示的另一条命令,在后续添加从节点时需要使用:
kubeadm join 192.168.31.174:6443 --token wzhn5s.lh9ahv8y4f59ie2t \
--discovery-token-ca-cert-hash sha256:7bf1f8c25fcef4aec3f55e463ac89cf42de43dccacf5fab940a597f0975af492