k8s相关

卸载kubernetes-dashboard

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kubectl get secret,sa,role,rolebinding,services,deployments --namespace=kube-system | grep dashboard sudo kubectl delete deployment kubernetes-dashboard --namespace=kube-system sudo kubectl delete service kubernetes-dashboard  --namespace=kube-system sudo kubectl delete role kubernetes-dashboard-minimal --namespace=kube-system sudo kubectl delete rolebinding kubernetes-dashboard-minimal --namespace=kube-system sudo kubectl delete sa kubernetes-dashboard --namespace=kube-system sudo kubectl delete secret kubernetes-dashboard-certs --namespace=kube-system sudo kubectl delete secret kubernetes-dashboard-csrf --namespace=kube-system sudo kubectl delete secret kubernetes-dashboard-key-holder --namespace=kube-system

　　

安装kubernetes-dashboard

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[root@k8s-master ~]# wget https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recommended/kubernetes-dashboard.yaml [root@k8s-master ~]# vim kubernetes-dashboard.yaml 修改内容： 109     spec: 110       containers: 111       - name: kubernetes-dashboard 112         image: registry.cn-hangzhou.aliyuncs.com/google_containers/kubernetes-dashboard-amd64:v1.10.1   # 修改此行   ......   157 spec: 158   type: NodePort     # 增加此行 159   ports: 160     - port: 443 161       targetPort: 8443 162       nodePort: 30001   # 增加此行 163   selector: 164     k8s-app: kubernetes-dashboard   [root@k8s-master ~]# kubectl apply -f kubernetes-dashboard.yaml   [root@k8s-master ~]# kubectl create clusterrolebinding test:kubernetes-dashboard --clusterrole=cluster-admin --serviceaccount=kube-system:kubernetes-dashboard [root@k8s-master ~]# kubectl describe secrets -n kube-system $(kubectl -n kube-system get secret | awk '/kubernetes-dashboard/{print $1}')

　　动态扩容

[root@k8s-master ~]# kubectl scale --replicas=1 deployment nginx

      更新pod版本

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1	[root@k8s-master ~]# kubectl set image deployment nginx nginx=nginx:1.15.5<br>deployment.extensions/nginx image updated

　　查看更新状态

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1 2	[root@k8s-master ~]# kubectl rollout status deployment nginx deployment "nginx" successfully rolled out

　　查看pod详细信息

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1	[root@k8s-master ~]# kubectl describe pods nginx-67d678c9f7-rqrtz

　　回滚版本可以直接指定镜像版本或者使用下面命令

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1 2	[root@k8s-master ~]# kubectl rollout undo deployment nginx deployment.extensions/nginx rolled back