Kubernetes 一些常用命令

kubectl命令行管理工具

1、创建

kubectl run nginx --replicas=3 --image=nginx:1.14 --port=80 kubectl get deploy,pods

2、发布

kubectl expose deployment nginx --port=80 --type=NodePort --target-port=80 --name=nginx-service

kubectl get service

3、更新（升级）

kubectl set image deployment/nginx nginx=nginx:1.15

#查看升级状态

kubectl rollout status deployment/nginx-deployment

#kubectl apply -f nginx.yaml

4、回滚

kubectl rollout history deployment/nginx

kubectl rollout undo deployment/nginx

kubectl rollout undo deployment/nginx --revision=2

5、删除

kubectl delete deploy/nginx

kubectl delete svc/nginx-service

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YAML配置文件管理资源

用run命令生成

kubectl run --image=nginx my-deploy -o yaml --dry-run > my-deploy.yaml 

用get命令导出

kubectl get my-deploy/nginx -o=yaml --export > my-deploy.yaml 

Pod容器的字段拼写忘记了

kubectl explain pods.spec.containers

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排查故障

kubectl describe TYPE/NAME

kubectl logs TYPE/NAME [-c CONTAINER]

kubectl exec POD [-c CONTAINER] -- COMMAND [args...]

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service常用命令