基础架构系列篇-常用的K8S指令

设置K8S运行context
kubectl config use-context docker-desktop

查看集群状态
kubectl cluster-info

查看节点
kubectl get nodes

创建控制面板
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.4.0/aio/deploy/recommended.yaml
或
切换到k8s-for-docker-desktop-1.21.5目录
执行kubectl create -f kubernetes-dashboard.yaml

查看kubernetes-dashboard名称空间的pod
kubectl get pod -n kubernetes-dashboard

开启 API Server 访问代理
kubectl proxy

访问kubernetes-dashboard
http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/
选择令牌登录

创建令牌
$TOKEN=((kubectl-nkube-systemdescribesecretdefault|Select-String"token:")-split"+")[1]kubectlconfigset-credentialsdocker-desktop--token="${TOKEN}"
echo $TOKEN
或查看
.kube\config文件里的token参数

安装ingress
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-1.0.4/deploy/static/provider/cloud/deploy.yaml

网络访问异常就从GITHUB下载ingress-nginx
切换目录ingress-nginx-controller-v1.0.4
执行 kubectl apply -f deploy/static/provider/cloud/deploy.yaml
查看 kubectl get pods --all-namespaces -l app.kubernetes.io/name=ingress-nginx

创建应用
切换k8s-for-docker-desktop-1.21.5目录
执行 kubectl create -f sample/apple.yaml
kubectl create -f sample/banana.yaml
kubectl create -f sample/ingress.yaml

删除应用
kubectl delete -f sample/apple.yaml
kubectl delete -f sample/banana.yaml
kubectl delete -f sample/ingress.yaml

部署nginx
kubectl create deployment nginx --image=nginx

查看pod
kubectl get pod或 kubectl get pods

查看deployment
kubectl get deployment

打开端口
kubectl expose deployment nginx --port=80 --type=NodePort

查看service
kubectl get svc 或 kubectl get service

打开网页访问 集群的 M/S节点IPV4地址:NODEPORT端口