参考，https://github.com/qxl1231/2019-k8s-centos
事实上k8s集群的搭建很简单，笔者在搭建的过程中遇到的主要问题是镜像无法下载的问题。
如果发现教程中提供的镜像地址无法使用，可以去docker hub搜索，使用对应的镜像地址：
docker hub：https://hub.docker.com
例如：
kubectl常用命令：
https://www.jianshu.com/p/9ce65e37f746
下面是笔者在搭建过程中的笔记：
192.168.153.100 master
192.168.153.101 node1
192.168.153.102 node2
192.168.153.103 node3
192.168.153.104 node4
192.168.153.105 node5
k8s.gcr.io/kube-apiserver:v1.16.0
k8s.gcr.io/kube-controller-manager:v1.16.0
k8s.gcr.io/kube-scheduler:v1.16.0
k8s.gcr.io/kube-proxy:v1.16.0
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.3.15-0
k8s.gcr.io/coredns:1.6.2
master端：
#!/bin/bash
images=(
kube-apiserver:v1.16.0
kube-controller-manager:v1.16.0
kube-scheduler:v1.16.0
kube-proxy:v1.16.0
pause:3.1
etcd:3.3.15-0
coredns:1.6.2
pause-amd64:3.1
kubernetes-dashboard-amd64:v1.10.0
heapster-amd64:v1.5.4
heapster-grafana-amd64:v5.0.4
heapster-influxdb-amd64:v1.5.2
)
for imageName in ${images[@]} ; do
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/$imageName
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/$imageName k8s.gcr.io/$imageName
docker rmi registry.cn-hangzhou.aliyuncs.com/google_containers/$imageName
done
node端
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.16.0
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.1
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.16.0 k8s.gcr.io/kube-proxy:v1.16.0
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.1 k8s.gcr.io/pause:3.1
docker rmi registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.16.0
docker rmi registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.1
kubeadm init --apiserver-advertise-address 192.168.153.100 --pod-network-cidr 10.244.0.0/16
scp Groceries.txt [email protected]:/data/tw
scp $HOME/.kube/config root@node3:$HOME/.kube/
kubeadm join 192.168.153.100:6443 --token 5dmdy6.mivy7w3hyocxtl4d\
--discovery-token-ca-cert-hash sha256:f164696e544a3bea116a7aa805fcc6da75c488ae471c025ec5dc5ab34792e7ae
yum remove kubelet kubeadm kubectl
常用命令
kubectl get nodes
kubectl get pods --all-namespaces
kubectl delete node node3
kubeadm reset
kubeadm token create