CentOS7 安装 Minikube，用于学习使用，可以在一台节点上很方便的部署 K8S 集群环境
一、先决条件
安装 Docker：https://www.cnblogs.com/jhxxb/p/11410816.html
安装 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、安装 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、启动
minikube start
默认为单节点，可添加节点，https://minikube.sigs.k8s.io/docs/commands/node
minikube node list
minikube node add
可视化
minikube dashboard --url # 让其它 IP 可以访问 kubectl proxy --port=8888 --address='0.0.0.0' --accept-hosts='^.*'
访问：http://10.74.2.71:8888/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/#/overview?namespace=_all
四、部署应用与访问应用
kubectl create deployment nginx --image=nginx kubectl expose deployment nginx --port=80 --type=NodePort # 获取访问地址 minikube service --url nginx
# 也可以通过 kubectl proxy 拼接 url 访问，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/
使用负载均衡访问，Minikube 网络：https://minikube.sigs.k8s.io/docs/handbook/accessing
# 新开窗口运行 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、卸载
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