CentOS7 安裝 Minikube，用於學習使用，可以在一台節點上很方便的部署 K8S 集群環境
一、先決條件
安裝 Docker：https://www.cnblogs.com/jhxxb/p/11410816.html
安裝 kubectl：https://kubernetes.io/docs/tasks/tools/
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl kubectl version --client
二、安裝 Minikube
https://minikube.sigs.k8s.io/docs/start/
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 sudo install minikube-linux-amd64 /usr/local/bin/minikube
三、啟動
minikube start
默認為單節點，可添加節點，https://minikube.sigs.k8s.io/docs/commands/node
minikube node list
minikube node add
可視化
minikube dashboard --url # 讓其它 IP 可以訪問 kubectl proxy --port=8888 --address='0.0.0.0' --accept-hosts='^.*'
訪問：http://10.74.2.71:8888/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/#/overview?namespace=_all
四、部署應用與訪問應用
kubectl create deployment nginx --image=nginx kubectl expose deployment nginx --port=80 --type=NodePort # 獲取訪問地址 minikube service --url nginx
# 也可以通過 kubectl proxy 拼接 url 訪問，https://kubernetes.io/zh/docs/tasks/access-application-cluster/access-cluster/#manually-constructing-apiserver-proxy-urls # http://10.74.2.71:8888/api/v1/namespaces/default/services/nginx:80/proxy/
使用負載均衡訪問，Minikube 網絡：https://minikube.sigs.k8s.io/docs/handbook/accessing
# 新開窗口運行 minikube tunnel --cleanup=true # 重新部署 kubectl delete deployment nginx kubectl delete service nginx kubectl create deployment nginx --image=nginx kubectl expose deployment nginx --port=80 --type=LoadBalancer # 查看外部地址 kubectl get svc
kubectl port-forward pods/nginx-6799fc88d8-p8llb 8080:80 --address='0.0.0.0'
五、卸載
https://minikube.sigs.k8s.io/docs/commands/delete
minikube stop minikube delete --all docker rmi kicbase/stable:v0.0.25 rm -rf ~/.kube ~/.minikube sudo rm -rf /usr/local/bin/kubectl /usr/local/bin/minikube docker system prune -a
https://github.com/AliyunContainerService/minikube/wiki