Though in Kubernetes, a ReplicaSet is the resource that manages replicating a containerized application, so it is not a best practice to use it directly.Instead, you use the Deployment resource. A Deployment combines the replication capabilities of ReplicaSet with versioning and the ability to perform a staged rollout. By using a Deployment you can use Kubernetes’ built-in tooling to move from one version of the application to the next. Pods and other Kubernetes resources are usually created by posting a JSON or YAMLmanifest to the Kubernetes REST API endpoint 獲取pod服務的yaml文件。 kubectl get po kubia-zxzij -o yaml