kubectl 使用案例

kubectl是Kubernetes的命令行工具，用于与Kubernetes集群进行交互。以下是一些kubectl的使用案例：

1. 获取集群信息：kubectl cluster-info

2. 查看节点信息：kubectl get nodes

3. 查看Pod信息：kubectl get pods

4. 查看服务信息：kubectl get services

5. 查看命名空间信息：kubectl get namespaces

6. 创建Deployment：kubectl create deployment <deployment-name> --image=<image-name>

7. 扩容Deployment：kubectl scale deployment <deployment-name> --replicas=<replica-count>

8. 滚动升级Deployment：kubectl set image deployment/<deployment-name> <container-name>=<new-image>

9. 删除Deployment：kubectl delete deployment <deployment-name>

10. 创建Service：kubectl expose deployment <deployment-name> --port=<port-number> --type=<service-type>

11. 删除Service：kubectl delete service <service-name>

12. 查看日志：kubectl logs <pod-name>

13. 进入容器：kubectl exec -it <pod-name> -- /bin/bash

14. 导出Deployment的YAML文件：kubectl get deployment <deployment-name> -o yaml > deployment.yaml

15. 应用Deployment的YAML文件：kubectl apply -f deployment.yaml